archive/blender-archive
Archived
1
1
Fork 0
Code Pull Requests Packages Activity
This repository has been archived on 2023-10-09. You can view files and clone it, but cannot push or open issues or pull requests.
Files
7d9bfdc31ab179b4dd4a626bc8f9a873c59402b4
blender-archive/source/blender/blenkernel/intern/pointcache.c

2689 lines
70 KiB
C
Raw Normal View History

Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
/**
*
Patch to change license to GPL only, from GSR.
2008-01-07 19:13:47 +00:00
* ***** BEGIN GPL LICENSE BLOCK *****
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
Patch to change license to GPL only, from GSR.
2008-01-07 19:13:47 +00:00
* of the License, or (at your option) any later version.
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* Contributor(s): Campbell Barton <ideasman42@gmail.com>
*
Patch to change license to GPL only, from GSR.
2008-01-07 19:13:47 +00:00
* ***** END GPL LICENSE BLOCK *****
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
#include "MEM_guardedalloc.h"
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
#include "DNA_ID.h"
#include "DNA_cloth_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_types.h"
#include "DNA_object_force.h"
#include "DNA_particle_types.h"
#include "DNA_scene_types.h"
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
#include "DNA_smoke_types.h"
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
#include "BLI_blenlib.h"
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
#include "BKE_cloth.h"
#include "BKE_depsgraph.h"
#include "BKE_global.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_modifier.h"
#include "BKE_object.h"
#include "BKE_particle.h"
#include "BKE_pointcache.h"
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
#include "BKE_scene.h"
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
#include "BKE_smoke.h"
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
#include "BKE_softbody.h"
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
#include "BKE_utildefines.h"
Merge of itasc branch. Project files, scons and cmake should be working. Makefile updated but not tested. Comes with Eigen2 2.0.6 C++ matrix library.
2009-09-24 21:22:24 +00:00
#include "BIK_api.h"
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
#include "BLI_blenlib.h"
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
/* both in intern */
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
#include "smoke_API.h"
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#ifdef WITH_LZO
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
#include "minilzo.h"
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#else
/* used for non-lzo cases */
#define LZO_OUT_LEN(size) ((size) + (size) / 16 + 64 + 3)
#endif
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#ifdef WITH_LZMA
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
#include "LzmaLib.h"
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#endif
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
/* needed for directory lookup */
* cleaning up warnings (mostly windows). A collection of other warning fixes too (undefined function, assuming int, etc.) This compiled fine with scons/msvc and scons/mingw (gcc 4.4.0). Please test and report any problems.
2009-09-06 13:20:05 +00:00
/* untitled blend's need getpid for a unique name */
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
#ifndef WIN32
#include <dirent.h>
* cleaning up warnings (mostly windows). A collection of other warning fixes too (undefined function, assuming int, etc.) This compiled fine with scons/msvc and scons/mingw (gcc 4.4.0). Please test and report any problems.
2009-09-06 13:20:05 +00:00
#include <unistd.h>
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
#else
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
#include <process.h>
* cleaning up warnings (mostly windows). A collection of other warning fixes too (undefined function, assuming int, etc.) This compiled fine with scons/msvc and scons/mingw (gcc 4.4.0). Please test and report any problems.
2009-09-06 13:20:05 +00:00
#include "BLI_winstuff.h"
Fix for part of bug #17759: point cache clearing did too much, also clearing other physics systems on the same object.
2008-10-04 21:26:48 +00:00
#endif
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
static void ptcache_data_to(void **data, int type, int index, void *to);
static void ptcache_data_from(void **data, int type, void *from);
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
#define PTCACHE_DATA_FROM(data, type, from) if(data[type]) { memcpy(data[type], from, ptcache_data_size[type]); }
#define PTCACHE_DATA_TO(data, type, index, to) if(data[type]) { memcpy(to, (char*)data[type] + (index ? index * ptcache_data_size[type] : 0), ptcache_data_size[type]); }
int ptcache_data_size[] = {
sizeof(int), // BPHYS_DATA_INDEX
3 * sizeof(float), // BPHYS_DATA_LOCATION:
3 * sizeof(float), // BPHYS_DATA_VELOCITY:
4 * sizeof(float), // BPHYS_DATA_ROTATION:
3 * sizeof(float), // BPHYS_DATA_AVELOCITY: /* also BPHYS_DATA_XCONST */
sizeof(float), // BPHYS_DATA_SIZE:
3 * sizeof(float), // BPHYS_DATA_TIMES:
sizeof(BoidData) // case BPHYS_DATA_BOIDS:
};
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* Common functions */
static int ptcache_read_basic_header(PTCacheFile *pf)
{
int error=0;
/* Custom functions should read these basic elements too! */
if(!error && !fread(&pf->totpoint, sizeof(int), 1, pf->fp))
error = 1;
if(!error && !fread(&pf->data_types, sizeof(int), 1, pf->fp))
error = 1;
return !error;
}
static int ptcache_write_basic_header(PTCacheFile *pf)
{
/* Custom functions should write these basic elements too! */
if(!fwrite(&pf->totpoint, sizeof(int), 1, pf->fp))
return 0;
if(!fwrite(&pf->data_types, sizeof(int), 1, pf->fp))
return 0;
return 1;
}
/* Softbody functions */
static int ptcache_write_softbody(int index, void *soft_v, void **data)
{
SoftBody *soft= soft_v;
BodyPoint *bp = soft->bpoint + index;
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_FROM(data, BPHYS_DATA_LOCATION, bp->pos);
PTCACHE_DATA_FROM(data, BPHYS_DATA_VELOCITY, bp->vec);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return 1;
}
static void ptcache_read_softbody(int index, void *soft_v, void **data, float frs_sec, float cfra, float *old_data)
{
SoftBody *soft= soft_v;
BodyPoint *bp = soft->bpoint + index;
if(old_data) {
memcpy(bp->pos, data, 3 * sizeof(float));
memcpy(bp->vec, data + 3, 3 * sizeof(float));
}
else {
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_TO(data, BPHYS_DATA_LOCATION, 0, bp->pos);
PTCACHE_DATA_TO(data, BPHYS_DATA_VELOCITY, 0, bp->vec);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
}
static void ptcache_interpolate_softbody(int index, void *soft_v, void **data, float frs_sec, float cfra, float cfra1, float cfra2, float *old_data)
{
SoftBody *soft= soft_v;
BodyPoint *bp = soft->bpoint + index;
ParticleKey keys[4];
float dfra;
if(cfra1 == cfra2)
return;
VECCOPY(keys[1].co, bp->pos);
VECCOPY(keys[1].vel, bp->vec);
if(old_data) {
memcpy(keys[2].co, old_data, 3 * sizeof(float));
memcpy(keys[2].vel, old_data + 3, 3 * sizeof(float));
}
else
BKE_ptcache_make_particle_key(keys+2, 0, data, cfra2);
dfra = cfra2 - cfra1;
VecMulf(keys[1].vel, dfra);
VecMulf(keys[2].vel, dfra);
psys_interpolate_particle(-1, keys, (cfra - cfra1) / dfra, keys, 1);
VecMulf(keys->vel, 1.0f / dfra);
VECCOPY(bp->pos, keys->co);
VECCOPY(bp->vec, keys->vel);
}
static int ptcache_totpoint_softbody(void *soft_v)
{
SoftBody *soft= soft_v;
return soft->totpoint;
}
/* Particle functions */
static int ptcache_write_particle(int index, void *psys_v, void **data)
{
ParticleSystem *psys= psys_v;
ParticleData *pa = psys->particles + index;
Some particles cleanup & fixes: - Some big refresh issues with softbody & cloth point cache usage should now be fixed. - Removed sticky objects from particles (better stuff will come back when I get to updating reactor particles). - Some initial easy memory efficiency cleanup for ParticleData struct. The ultimate goal is to get particles less memory hungry -> more particles possible in single scene. - Wrong path timing clamping caused hair particles to seem disappeared when changing between normal<->hair particles. - "Calculate to current frame" in cache buttons baked instead of the intended function. - Boids particle data is now a bit better organized.
2009-09-04 23:06:15 +00:00
BoidParticle *boid = (psys->part->phystype == PART_PHYS_BOIDS) ? pa->boid : NULL;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
float times[3] = {pa->time, pa->dietime, pa->lifetime};
if(data[BPHYS_DATA_INDEX]) {
int step = psys->pointcache->step;
/* No need to store unborn or died particles */
if(pa->time - step > pa->state.time || pa->dietime + step < pa->state.time)
return 0;
}
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_FROM(data, BPHYS_DATA_INDEX, &index);
PTCACHE_DATA_FROM(data, BPHYS_DATA_LOCATION, pa->state.co);
PTCACHE_DATA_FROM(data, BPHYS_DATA_VELOCITY, pa->state.vel);
PTCACHE_DATA_FROM(data, BPHYS_DATA_ROTATION, pa->state.rot);
PTCACHE_DATA_FROM(data, BPHYS_DATA_AVELOCITY, pa->state.ave);
PTCACHE_DATA_FROM(data, BPHYS_DATA_SIZE, &pa->size);
PTCACHE_DATA_FROM(data, BPHYS_DATA_TIMES, times);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
Some particles cleanup & fixes: - Some big refresh issues with softbody & cloth point cache usage should now be fixed. - Removed sticky objects from particles (better stuff will come back when I get to updating reactor particles). - Some initial easy memory efficiency cleanup for ParticleData struct. The ultimate goal is to get particles less memory hungry -> more particles possible in single scene. - Wrong path timing clamping caused hair particles to seem disappeared when changing between normal<->hair particles. - "Calculate to current frame" in cache buttons baked instead of the intended function. - Boids particle data is now a bit better organized.
2009-09-04 23:06:15 +00:00
if(boid)
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_FROM(data, BPHYS_DATA_BOIDS, &boid->data);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return 1;
}
void BKE_ptcache_make_particle_key(ParticleKey *key, int index, void **data, float time)
{
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_TO(data, BPHYS_DATA_LOCATION, index, key->co);
PTCACHE_DATA_TO(data, BPHYS_DATA_VELOCITY, index, key->vel);
PTCACHE_DATA_TO(data, BPHYS_DATA_ROTATION, index, key->rot);
PTCACHE_DATA_TO(data, BPHYS_DATA_AVELOCITY, index, key->ave);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
key->time = time;
}
static void ptcache_read_particle(int index, void *psys_v, void **data, float frs_sec, float cfra, float *old_data)
{
ParticleSystem *psys= psys_v;
ParticleData *pa = psys->particles + index;
Some particles cleanup & fixes: - Some big refresh issues with softbody & cloth point cache usage should now be fixed. - Removed sticky objects from particles (better stuff will come back when I get to updating reactor particles). - Some initial easy memory efficiency cleanup for ParticleData struct. The ultimate goal is to get particles less memory hungry -> more particles possible in single scene. - Wrong path timing clamping caused hair particles to seem disappeared when changing between normal<->hair particles. - "Calculate to current frame" in cache buttons baked instead of the intended function. - Boids particle data is now a bit better organized.
2009-09-04 23:06:15 +00:00
BoidParticle *boid = (psys->part->phystype == PART_PHYS_BOIDS) ? pa->boid : NULL;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(cfra > pa->state.time)
memcpy(&pa->prev_state, &pa->state, sizeof(ParticleKey));
if(old_data){
/* old format cache */
memcpy(&pa->state, old_data, sizeof(ParticleKey));
return;
}
BKE_ptcache_make_particle_key(&pa->state, 0, data, cfra);
if(data[BPHYS_DATA_SIZE])
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_TO(data, BPHYS_DATA_SIZE, 0, &pa->size);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(data[BPHYS_DATA_TIMES]) {
float times[3];
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_TO(data, BPHYS_DATA_TIMES, 0, &times);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pa->time = times[0];
pa->dietime = times[1];
pa->lifetime = times[2];
}
Some particles cleanup & fixes: - Some big refresh issues with softbody & cloth point cache usage should now be fixed. - Removed sticky objects from particles (better stuff will come back when I get to updating reactor particles). - Some initial easy memory efficiency cleanup for ParticleData struct. The ultimate goal is to get particles less memory hungry -> more particles possible in single scene. - Wrong path timing clamping caused hair particles to seem disappeared when changing between normal<->hair particles. - "Calculate to current frame" in cache buttons baked instead of the intended function. - Boids particle data is now a bit better organized.
2009-09-04 23:06:15 +00:00
if(boid)
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_TO(data, BPHYS_DATA_BOIDS, 0, &boid->data);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* determine velocity from previous location */
if(data[BPHYS_DATA_LOCATION] && !data[BPHYS_DATA_VELOCITY]) {
if(cfra > pa->prev_state.time) {
VecSubf(pa->state.vel, pa->state.co, pa->prev_state.co);
VecMulf(pa->state.vel, (cfra - pa->prev_state.time) / frs_sec);
}
else {
VecSubf(pa->state.vel, pa->prev_state.co, pa->state.co);
VecMulf(pa->state.vel, (pa->prev_state.time - cfra) / frs_sec);
}
}
/* determine rotation from velocity */
if(data[BPHYS_DATA_LOCATION] && !data[BPHYS_DATA_ROTATION]) {
vectoquat(pa->state.vel, OB_POSX, OB_POSZ, pa->state.rot);
}
}
static void ptcache_interpolate_particle(int index, void *psys_v, void **data, float frs_sec, float cfra, float cfra1, float cfra2, float *old_data)
{
ParticleSystem *psys= psys_v;
ParticleData *pa = psys->particles + index;
ParticleKey keys[4];
float dfra;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
cfra = MIN2(cfra, pa->dietime);
cfra1 = MIN2(cfra1, pa->dietime);
cfra2 = MIN2(cfra2, pa->dietime);
if(cfra1 == cfra2)
return;
memcpy(keys+1, &pa->state, sizeof(ParticleKey));
if(old_data)
memcpy(keys+2, old_data, sizeof(ParticleKey));
else
BKE_ptcache_make_particle_key(keys+2, 0, data, cfra2);
dfra = cfra2 - cfra1;
VecMulf(keys[1].vel, dfra / frs_sec);
VecMulf(keys[2].vel, dfra / frs_sec);
psys_interpolate_particle(-1, keys, (cfra - cfra1) / dfra, &pa->state, 1);
QuatInterpol(pa->state.rot, keys[1].rot,keys[2].rot, (cfra - cfra1) / dfra);
VecMulf(pa->state.vel, frs_sec / dfra);
pa->state.time = cfra;
}
static int ptcache_totpoint_particle(void *psys_v)
{
ParticleSystem *psys = psys_v;
return psys->totpart;
}
static int ptcache_totwrite_particle(void *psys_v)
{
ParticleSystem *psys = psys_v;
int totwrite = 0;
/* TODO for later */
//if((psys->part->flag & (PART_UNBORN|PART_DIED))==0) {
// ParticleData *pa= psys->particles;
// int p, step = psys->pointcache->step;
// for(p=0; p<psys->totpart; p++,pa++)
// totwrite += (pa->time - step > pa->state.time || pa->dietime + step > pa->state.time);
//}
//else
totwrite= psys->totpart;
return totwrite;
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
//static int ptcache_write_particle_stream(PTCacheFile *pf, PTCacheMem *pm, void *psys_v)
//{
// ParticleSystem *psys= psys_v;
// ParticleData *pa = psys->particles;
// BoidParticle *boid = NULL;
// float times[3];
// int i = 0;
//
// if(!pf && !pm)
// return 0;
//
// for(i=0; i<psys->totpart; i++, pa++) {
//
// if(data[BPHYS_DATA_INDEX]) {
// int step = psys->pointcache->step;
// /* No need to store unborn or died particles */
// if(pa->time - step > pa->state.time || pa->dietime + step < pa->state.time)
// continue;
// }
//
// times[0] = pa->time;
// times[1] = pa->dietime;
// times[2] = pa->lifetime;
//
// PTCACHE_DATA_FROM(data, BPHYS_DATA_INDEX, &index);
// PTCACHE_DATA_FROM(data, BPHYS_DATA_LOCATION, pa->state.co);
// PTCACHE_DATA_FROM(data, BPHYS_DATA_VELOCITY, pa->state.vel);
// PTCACHE_DATA_FROM(data, BPHYS_DATA_ROTATION, pa->state.rot);
// PTCACHE_DATA_FROM(data, BPHYS_DATA_AVELOCITY, pa->state.ave);
// PTCACHE_DATA_FROM(data, BPHYS_DATA_SIZE, &pa->size);
// PTCACHE_DATA_FROM(data, BPHYS_DATA_TIMES, times);
//
// boid = (psys->part->phystype == PART_PHYS_BOIDS) ? pa->boid : NULL;
// if(boid)
// PTCACHE_DATA_FROM(data, BPHYS_DATA_BOIDS, &boid->data);
//
// if(pf && !ptcache_file_write_data(pf))
// return 0;
//
// if(pm)
// BKE_ptcache_mem_incr_pointers(pm);
// }
//
// return 1;
//}
//static void ptcache_read_particle_stream(PTCacheFile *pf, PTCacheMem *pm, void *psys_v, void **data, float frs_sec, float cfra, float *old_data)
//{
// ParticleSystem *psys= psys_v;
// ParticleData *pa = psys->particles + index;
// BoidParticle *boid = (psys->part->phystype == PART_PHYS_BOIDS) ? pa->boid : NULL;
//
// if(cfra > pa->state.time)
// memcpy(&pa->prev_state, &pa->state, sizeof(ParticleKey));
//
// if(old_data){
// /* old format cache */
// memcpy(&pa->state, old_data, sizeof(ParticleKey));
// return;
// }
//
// BKE_ptcache_make_particle_key(&pa->state, 0, data, cfra);
//
// if(data[BPHYS_DATA_SIZE])
// PTCACHE_DATA_TO(data, BPHYS_DATA_SIZE, 0, &pa->size);
//
// if(data[BPHYS_DATA_TIMES]) {
// float times[3];
// PTCACHE_DATA_TO(data, BPHYS_DATA_TIMES, 0, &times);
// pa->time = times[0];
// pa->dietime = times[1];
// pa->lifetime = times[2];
// }
//
// if(boid)
// PTCACHE_DATA_TO(data, BPHYS_DATA_BOIDS, 0, &boid->data);
//
// /* determine velocity from previous location */
// if(data[BPHYS_DATA_LOCATION] && !data[BPHYS_DATA_VELOCITY]) {
// if(cfra > pa->prev_state.time) {
// VecSubf(pa->state.vel, pa->state.co, pa->prev_state.co);
// VecMulf(pa->state.vel, (cfra - pa->prev_state.time) / frs_sec);
// }
// else {
// VecSubf(pa->state.vel, pa->prev_state.co, pa->state.co);
// VecMulf(pa->state.vel, (pa->prev_state.time - cfra) / frs_sec);
// }
// }
//
// /* determine rotation from velocity */
// if(data[BPHYS_DATA_LOCATION] && !data[BPHYS_DATA_ROTATION]) {
// vectoquat(pa->state.vel, OB_POSX, OB_POSZ, pa->state.rot);
// }
//}
//static void ptcache_interpolate_particle_stream(int index, void *psys_v, void **data, float frs_sec, float cfra, float cfra1, float cfra2, float *old_data)
//{
// ParticleSystem *psys= psys_v;
// ParticleData *pa = psys->particles + index;
// ParticleKey keys[4];
// float dfra;
//
// cfra = MIN2(cfra, pa->dietime);
// cfra1 = MIN2(cfra1, pa->dietime);
// cfra2 = MIN2(cfra2, pa->dietime);
//
// if(cfra1 == cfra2)
// return;
//
// memcpy(keys+1, &pa->state, sizeof(ParticleKey));
// if(old_data)
// memcpy(keys+2, old_data, sizeof(ParticleKey));
// else
// BKE_ptcache_make_particle_key(keys+2, 0, data, cfra2);
//
// dfra = cfra2 - cfra1;
//
// VecMulf(keys[1].vel, dfra / frs_sec);
// VecMulf(keys[2].vel, dfra / frs_sec);
//
// psys_interpolate_particle(-1, keys, (cfra - cfra1) / dfra, &pa->state, 1);
// QuatInterpol(pa->state.rot, keys[1].rot,keys[2].rot, (cfra - cfra1) / dfra);
//
// VecMulf(pa->state.vel, frs_sec / dfra);
//
// pa->state.time = cfra;
//}
//
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* Cloth functions */
static int ptcache_write_cloth(int index, void *cloth_v, void **data)
{
ClothModifierData *clmd= cloth_v;
Cloth *cloth= clmd->clothObject;
ClothVertex *vert = cloth->verts + index;
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_FROM(data, BPHYS_DATA_LOCATION, vert->x);
PTCACHE_DATA_FROM(data, BPHYS_DATA_VELOCITY, vert->v);
PTCACHE_DATA_FROM(data, BPHYS_DATA_XCONST, vert->xconst);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return 1;
}
static void ptcache_read_cloth(int index, void *cloth_v, void **data, float frs_sec, float cfra, float *old_data)
{
ClothModifierData *clmd= cloth_v;
Cloth *cloth= clmd->clothObject;
ClothVertex *vert = cloth->verts + index;
if(old_data) {
memcpy(vert->x, data, 3 * sizeof(float));
memcpy(vert->xconst, data + 3, 3 * sizeof(float));
memcpy(vert->v, data + 6, 3 * sizeof(float));
}
else {
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
PTCACHE_DATA_TO(data, BPHYS_DATA_LOCATION, 0, vert->x);
PTCACHE_DATA_TO(data, BPHYS_DATA_VELOCITY, 0, vert->v);
PTCACHE_DATA_TO(data, BPHYS_DATA_XCONST, 0, vert->xconst);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
}
static void ptcache_interpolate_cloth(int index, void *cloth_v, void **data, float frs_sec, float cfra, float cfra1, float cfra2, float *old_data)
{
ClothModifierData *clmd= cloth_v;
Cloth *cloth= clmd->clothObject;
ClothVertex *vert = cloth->verts + index;
ParticleKey keys[4];
float dfra;
if(cfra1 == cfra2)
return;
VECCOPY(keys[1].co, vert->x);
VECCOPY(keys[1].vel, vert->v);
if(old_data) {
memcpy(keys[2].co, old_data, 3 * sizeof(float));
memcpy(keys[2].vel, old_data + 6, 3 * sizeof(float));
}
else
BKE_ptcache_make_particle_key(keys+2, 0, data, cfra2);
dfra = cfra2 - cfra1;
VecMulf(keys[1].vel, dfra);
VecMulf(keys[2].vel, dfra);
psys_interpolate_particle(-1, keys, (cfra - cfra1) / dfra, keys, 1);
VecMulf(keys->vel, 1.0f / dfra);
VECCOPY(vert->x, keys->co);
VECCOPY(vert->v, keys->vel);
/* should vert->xconst be interpolated somehow too? - jahka */
}
static int ptcache_totpoint_cloth(void *cloth_v)
{
ClothModifierData *clmd= cloth_v;
return clmd->clothObject->numverts;
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* Creating ID's */
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
void BKE_ptcache_id_from_softbody(PTCacheID *pid, Object *ob, SoftBody *sb)
{
memset(pid, 0, sizeof(PTCacheID));
pid->ob= ob;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->calldata= sb;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
pid->type= PTCACHE_TYPE_SOFTBODY;
pid->cache= sb->pointcache;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->cache_ptr= &sb->pointcache;
pid->ptcaches= &sb->ptcaches;
pid->totpoint= pid->totwrite= ptcache_totpoint_softbody;
pid->write_elem= ptcache_write_softbody;
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
pid->write_stream = NULL;
pid->read_stream = NULL;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->read_elem= ptcache_read_softbody;
pid->interpolate_elem= ptcache_interpolate_softbody;
pid->write_header= ptcache_write_basic_header;
pid->read_header= ptcache_read_basic_header;
pid->data_types= (1<<BPHYS_DATA_LOCATION) | (1<<BPHYS_DATA_VELOCITY);
pid->info_types= 0;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
Hair dynamics with cloth simulation - Hair dynamics have their own panel in particle settings with the settings from cloth panel that apply to hair. - Basic internal friction force to quickly emulate self collisions and volume preservation. (Still very early code, but gives some idea of what's possible). - Softbody simulation is no longer used for hair. * Old files with sb dynamics should just load the hair without dynamics so new dynamics can be applied. * Invasion of particles exceptions in sb code is finally over. - Collisions with other objects are disabled for now and will be worked out in the future. Other changes/fixes: - Particle mode editing flag wasn't saved properly. - Some old files with edited hair didn't load correctly. - Disabled delete & specials menu in particle mode for non-hair editing. - Fixed yet one more cloth & softbody pointcache update issue. - Disconnect/connect hair now uses only the deformed mesh so it works correctly also for subsurfed emitters. - Hair editing now updates correctly with a moving emitter.
2009-09-10 22:32:33 +00:00
pid->stack_index = pid->cache->index;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
void BKE_ptcache_id_from_particles(PTCacheID *pid, Object *ob, ParticleSystem *psys)
{
memset(pid, 0, sizeof(PTCacheID));
pid->ob= ob;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->calldata= psys;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
pid->type= PTCACHE_TYPE_PARTICLES;
Pointcache: *introducing unique ID's following brechts hint from ML Enhancements resulting from this: * multiple caches per modifier stack position
2009-08-25 18:41:36 +00:00
pid->stack_index= psys->pointcache->index;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
pid->cache= psys->pointcache;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->cache_ptr= &psys->pointcache;
pid->ptcaches= &psys->ptcaches;
Hair dynamics with cloth simulation - Hair dynamics have their own panel in particle settings with the settings from cloth panel that apply to hair. - Basic internal friction force to quickly emulate self collisions and volume preservation. (Still very early code, but gives some idea of what's possible). - Softbody simulation is no longer used for hair. * Old files with sb dynamics should just load the hair without dynamics so new dynamics can be applied. * Invasion of particles exceptions in sb code is finally over. - Collisions with other objects are disabled for now and will be worked out in the future. Other changes/fixes: - Particle mode editing flag wasn't saved properly. - Some old files with edited hair didn't load correctly. - Disabled delete & specials menu in particle mode for non-hair editing. - Fixed yet one more cloth & softbody pointcache update issue. - Disconnect/connect hair now uses only the deformed mesh so it works correctly also for subsurfed emitters. - Hair editing now updates correctly with a moving emitter.
2009-09-10 22:32:33 +00:00
if(psys->part->type != PART_HAIR)
pid->flag |= PTCACHE_VEL_PER_SEC;
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->write_elem= ptcache_write_particle;
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
pid->write_stream = NULL;
pid->read_stream = NULL;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->read_elem= ptcache_read_particle;
pid->interpolate_elem= ptcache_interpolate_particle;
pid->totpoint= ptcache_totpoint_particle;
pid->totwrite= ptcache_totwrite_particle;
pid->write_header= ptcache_write_basic_header;
pid->read_header= ptcache_read_basic_header;
pid->data_types= (1<<BPHYS_DATA_LOCATION) | (1<<BPHYS_DATA_VELOCITY);
Reverting "fix" - didnt fix crash at all. jahka: please take a look at this, several people in #blendercoders now reporting crashes on startup.
2009-08-12 12:15:45 +00:00
/* TODO for later */
//if((psys->part->flag & (PART_UNBORN|PART_DIED))==0)
// pid->data_types|= (1<<BPHYS_DATA_INDEX);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
Reverting "fix" - didnt fix crash at all. jahka: please take a look at this, several people in #blendercoders now reporting crashes on startup.
2009-08-12 12:15:45 +00:00
if(psys->part->phystype == PART_PHYS_BOIDS)
pid->data_types|= (1<<BPHYS_DATA_AVELOCITY) | (1<<BPHYS_DATA_ROTATION) | (1<<BPHYS_DATA_BOIDS);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
Reverting "fix" - didnt fix crash at all. jahka: please take a look at this, several people in #blendercoders now reporting crashes on startup.
2009-08-12 12:15:45 +00:00
if(psys->part->rotmode || psys->part->avemode)
pid->data_types|= (1<<BPHYS_DATA_AVELOCITY) | (1<<BPHYS_DATA_ROTATION);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
Reverting "fix" - didnt fix crash at all. jahka: please take a look at this, several people in #blendercoders now reporting crashes on startup.
2009-08-12 12:15:45 +00:00
if(psys->part->flag & PART_ROT_DYN)
pid->data_types|= (1<<BPHYS_DATA_ROTATION);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->info_types= (1<<BPHYS_DATA_TIMES);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
/* Smoke functions */
static int ptcache_totpoint_smoke(void *smoke_v)
{
SmokeModifierData *smd= (SmokeModifierData *)smoke_v;
SmokeDomainSettings *sds = smd->domain;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
if(sds->fluid) {
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
return sds->res[0]*sds->res[1]*sds->res[2];
}
else
return 0;
}
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
/* Smoke functions */
static int ptcache_totpoint_smoke_turbulence(void *smoke_v)
{
SmokeModifierData *smd= (SmokeModifierData *)smoke_v;
SmokeDomainSettings *sds = smd->domain;
if(sds->wt) {
return sds->res_wt[0]*sds->res_wt[1]*sds->res_wt[2];
}
else
return 0;
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
// forward decleration
static int ptcache_file_write(PTCacheFile *pf, void *f, size_t tot, int size);
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
static int ptcache_compress_write(PTCacheFile *pf, unsigned char *in, unsigned int in_len, unsigned char *out, int mode)
{
2.5 - Warning cleanups (for mingw+scons) Also, made the Outliner's horizontal scrollbar work better for keymaps view. It's still using an approximation of the width, but at least you can scroll now.
2009-08-26 00:38:43 +00:00
int r = 0;
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
unsigned char compressed = 0;
unsigned int out_len= 0;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
unsigned char *props = MEM_callocN(16*sizeof(char), "tmp");
size_t sizeOfIt = 5;
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#ifdef WITH_LZO
out_len= LZO_OUT_LEN(in_len);
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
if(mode == 1) {
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
LZO_HEAP_ALLOC(wrkmem, LZO1X_MEM_COMPRESS);
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
r = lzo1x_1_compress(in, (lzo_uint)in_len, out, (lzo_uint *)&out_len, wrkmem);
if (!(r == LZO_E_OK) || (out_len >= in_len))
compressed = 0;
else
compressed = 1;
}
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#endif
#ifdef WITH_LZMA
if(mode == 2) {
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
r = LzmaCompress(out, (size_t *)&out_len, in, in_len,//assume sizeof(char)==1....
props, &sizeOfIt, 5, 1 << 24, 3, 0, 2, 32, 2);
if(!(r == SZ_OK) || (out_len >= in_len))
compressed = 0;
else
compressed = 2;
}
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#endif
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
ptcache_file_write(pf, &compressed, 1, sizeof(unsigned char));
if(compressed) {
ptcache_file_write(pf, &out_len, 1, sizeof(unsigned int));
ptcache_file_write(pf, out, out_len, sizeof(unsigned char));
}
else
ptcache_file_write(pf, in, in_len, sizeof(unsigned char));
if(compressed == 2)
{
ptcache_file_write(pf, &sizeOfIt, 1, sizeof(unsigned int));
ptcache_file_write(pf, props, sizeOfIt, sizeof(unsigned char));
}
MEM_freeN(props);
return r;
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
static int ptcache_write_smoke(PTCacheFile *pf, void *smoke_v)
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
{
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
SmokeModifierData *smd= (SmokeModifierData *)smoke_v;
SmokeDomainSettings *sds = smd->domain;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
if(sds->fluid) {
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
size_t res = sds->res[0]*sds->res[1]*sds->res[2];
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
float dt, dx, *dens, *densold, *heat, *heatold, *vx, *vy, *vz, *vxold, *vyold, *vzold;
unsigned char *obstacles;
unsigned int in_len = sizeof(float)*(unsigned int)res;
unsigned char *out = (unsigned char *)MEM_callocN(LZO_OUT_LEN(in_len)*4, "pointcache_lzo_buffer");
int mode = res >= 1000000 ? 2 : 1;
smoke_export(sds->fluid, &dt, &dx, &dens, &densold, &heat, &heatold, &vx, &vy, &vz, &vxold, &vyold, &vzold, &obstacles);
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
ptcache_compress_write(pf, (unsigned char *)sds->shadow, in_len, out, mode);
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
ptcache_compress_write(pf, (unsigned char *)dens, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)densold, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)heat, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)heatold, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)vx, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)vy, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)vz, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)vxold, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)vyold, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)vzold, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)obstacles, (unsigned int)res, out, mode);
ptcache_file_write(pf, &dt, 1, sizeof(float));
ptcache_file_write(pf, &dx, 1, sizeof(float));
MEM_freeN(out);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
return 1;
}
return 0;
}
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
static int ptcache_write_smoke_turbulence(PTCacheFile *pf, void *smoke_v)
{
SmokeModifierData *smd= (SmokeModifierData *)smoke_v;
SmokeDomainSettings *sds = smd->domain;
2.5 - Warning cleanups (for mingw+scons) Also, made the Outliner's horizontal scrollbar work better for keymaps view. It's still using an approximation of the width, but at least you can scroll now.
2009-08-26 00:38:43 +00:00
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
if(sds->wt) {
Smoke: * Fixing some gcc warnings
2009-09-14 16:46:34 +00:00
int res_big_array[3];
int res_big;
int res = sds->res[0]*sds->res[1]*sds->res[2];
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
float *dens, *densold, *tcu, *tcv, *tcw;
unsigned int in_len = sizeof(float)*(unsigned int)res;
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
unsigned int in_len_big;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
unsigned char *out;
int mode;
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
smoke_turbulence_get_res(sds->wt, res_big_array);
res_big = res_big_array[0]*res_big_array[1]*res_big_array[2];
mode = res_big >= 1000000 ? 2 : 1;
in_len_big = sizeof(float) * (unsigned int)res_big;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
smoke_turbulence_export(sds->wt, &dens, &densold, &tcu, &tcv, &tcw);
out = (unsigned char *)MEM_callocN(LZO_OUT_LEN(in_len_big), "pointcache_lzo_buffer");
ptcache_compress_write(pf, (unsigned char *)dens, in_len_big, out, mode);
ptcache_compress_write(pf, (unsigned char *)densold, in_len_big, out, mode);
MEM_freeN(out);
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
out = (unsigned char *)MEM_callocN(LZO_OUT_LEN(in_len), "pointcache_lzo_buffer");
ptcache_compress_write(pf, (unsigned char *)tcu, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)tcv, in_len, out, mode);
ptcache_compress_write(pf, (unsigned char *)tcw, in_len, out, mode);
MEM_freeN(out);
return 1;
}
return 0;
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
// forward decleration
static int ptcache_file_read(PTCacheFile *pf, void *f, size_t tot, int size);
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
static int ptcache_compress_read(PTCacheFile *pf, unsigned char *result, unsigned int len)
{
2.5 - Warning cleanups (for mingw+scons) Also, made the Outliner's horizontal scrollbar work better for keymaps view. It's still using an approximation of the width, but at least you can scroll now.
2009-08-26 00:38:43 +00:00
int r = 0;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
unsigned char compressed = 0;
unsigned int in_len;
unsigned int out_len = len;
unsigned char *in;
unsigned char *props = MEM_callocN(16*sizeof(char), "tmp");
size_t sizeOfIt = 5;
ptcache_file_read(pf, &compressed, 1, sizeof(unsigned char));
if(compressed) {
ptcache_file_read(pf, &in_len, 1, sizeof(unsigned int));
in = (unsigned char *)MEM_callocN(sizeof(unsigned char)*in_len, "pointcache_compressed_buffer");
ptcache_file_read(pf, in, in_len, sizeof(unsigned char));
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#ifdef WITH_LZO
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
if(compressed == 1)
r = lzo1x_decompress(in, (lzo_uint)in_len, result, (lzo_uint *)&out_len, NULL);
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#endif
#ifdef WITH_LZMA
if(compressed == 2)
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
{
size_t leni = in_len, leno = out_len;
ptcache_file_read(pf, &sizeOfIt, 1, sizeof(unsigned int));
ptcache_file_read(pf, props, sizeOfIt, sizeof(unsigned char));
r = LzmaUncompress(result, &leno, in, &leni, props, sizeOfIt);
}
options WITH_LZO and WITH_LZMA for cmake and scons (default to true) pointcache.c also needed to have checks for these defines.
2009-09-25 02:40:10 +00:00
#endif
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
MEM_freeN(in);
}
else {
ptcache_file_read(pf, result, len, sizeof(unsigned char));
}
MEM_freeN(props);
return r;
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
static void ptcache_read_smoke(PTCacheFile *pf, void *smoke_v)
{
SmokeModifierData *smd= (SmokeModifierData *)smoke_v;
SmokeDomainSettings *sds = smd->domain;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
if(sds->fluid) {
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
size_t res = sds->res[0]*sds->res[1]*sds->res[2];
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
float dt, dx, *dens, *densold, *heat, *heatold, *vx, *vy, *vz, *vxold, *vyold, *vzold;
unsigned char *obstacles;
unsigned int out_len = (unsigned int)res * sizeof(float);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
smoke_export(sds->fluid, &dt, &dx, &dens, &densold, &heat, &heatold, &vx, &vy, &vz, &vxold, &vyold, &vzold, &obstacles);
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
ptcache_compress_read(pf, (unsigned char *)sds->shadow, out_len);
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
ptcache_compress_read(pf, (unsigned char*)dens, out_len);
ptcache_compress_read(pf, (unsigned char*)densold, out_len);
ptcache_compress_read(pf, (unsigned char*)heat, out_len);
ptcache_compress_read(pf, (unsigned char*)heatold, out_len);
ptcache_compress_read(pf, (unsigned char*)vx, out_len);
ptcache_compress_read(pf, (unsigned char*)vy, out_len);
ptcache_compress_read(pf, (unsigned char*)vz, out_len);
ptcache_compress_read(pf, (unsigned char*)vxold, out_len);
ptcache_compress_read(pf, (unsigned char*)vyold, out_len);
ptcache_compress_read(pf, (unsigned char*)vzold, out_len);
ptcache_compress_read(pf, (unsigned char*)obstacles, (unsigned int)res);
ptcache_file_read(pf, &dt, 1, sizeof(float));
ptcache_file_read(pf, &dx, 1, sizeof(float));
}
}
static void ptcache_read_smoke_turbulence(PTCacheFile *pf, void *smoke_v)
{
SmokeModifierData *smd= (SmokeModifierData *)smoke_v;
SmokeDomainSettings *sds = smd->domain;
2.5 - Warning cleanups (for mingw+scons) Also, made the Outliner's horizontal scrollbar work better for keymaps view. It's still using an approximation of the width, but at least you can scroll now.
2009-08-26 00:38:43 +00:00
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
if(sds->fluid) {
Smoke: * Fixing some gcc warnings
2009-09-14 16:46:34 +00:00
int res = sds->res[0]*sds->res[1]*sds->res[2];
int res_big, res_big_array[3];
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
float *dens, *densold, *tcu, *tcv, *tcw;
unsigned int out_len = sizeof(float)*(unsigned int)res;
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
unsigned int out_len_big;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
smoke_turbulence_get_res(sds->wt, res_big_array);
res_big = res_big_array[0]*res_big_array[1]*res_big_array[2];
out_len_big = sizeof(float) * (unsigned int)res_big;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
smoke_turbulence_export(sds->wt, &dens, &densold, &tcu, &tcv, &tcw);
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
ptcache_compress_read(pf, (unsigned char*)dens, out_len_big);
ptcache_compress_read(pf, (unsigned char*)densold, out_len_big);
ptcache_compress_read(pf, (unsigned char*)tcu, out_len);
ptcache_compress_read(pf, (unsigned char*)tcv, out_len);
ptcache_compress_read(pf, (unsigned char*)tcw, out_len);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
}
}
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
void BKE_ptcache_id_from_smoke(PTCacheID *pid, struct Object *ob, struct SmokeModifierData *smd)
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
{
SmokeDomainSettings *sds = smd->domain;
memset(pid, 0, sizeof(PTCacheID));
pid->ob= ob;
pid->calldata= smd;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
pid->type= PTCACHE_TYPE_SMOKE_DOMAIN;
Smoke: *Bugfix for crash on using a plane as smoke domain (reported by DingTo) * Bringing slowly high res back, not yet working
2009-08-25 23:39:49 +00:00
pid->stack_index= sds->point_cache[0]->index;
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
Smoke: *Bugfix for crash on using a plane as smoke domain (reported by DingTo) * Bringing slowly high res back, not yet working
2009-08-25 23:39:49 +00:00
pid->cache= sds->point_cache[0];
pid->cache_ptr= &(sds->point_cache[0]);
pid->ptcaches= &(sds->ptcaches[0]);
pid->totpoint= pid->totwrite= ptcache_totpoint_smoke;
pid->write_elem= NULL;
pid->read_elem= NULL;
pid->read_stream = ptcache_read_smoke;
pid->write_stream = ptcache_write_smoke;
pid->interpolate_elem= NULL;
pid->write_header= ptcache_write_basic_header;
pid->read_header= ptcache_read_basic_header;
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
pid->data_types= (1<<BPHYS_DATA_LOCATION); // bogus values to make pointcache happy
Smoke: *Bugfix for crash on using a plane as smoke domain (reported by DingTo) * Bringing slowly high res back, not yet working
2009-08-25 23:39:49 +00:00
pid->info_types= 0;
}
void BKE_ptcache_id_from_smoke_turbulence(PTCacheID *pid, struct Object *ob, struct SmokeModifierData *smd)
{
SmokeDomainSettings *sds = smd->domain;
memset(pid, 0, sizeof(PTCacheID));
pid->ob= ob;
pid->calldata= smd;
pid->type= PTCACHE_TYPE_SMOKE_HIGHRES;
pid->stack_index= sds->point_cache[1]->index;
pid->cache= sds->point_cache[1];
pid->cache_ptr= &sds->point_cache[1];
pid->ptcaches= &sds->ptcaches[1];
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
pid->totpoint= pid->totwrite= ptcache_totpoint_smoke_turbulence;
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
pid->write_elem= NULL;
pid->read_elem= NULL;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
pid->read_stream = ptcache_read_smoke_turbulence;
pid->write_stream = ptcache_write_smoke_turbulence;
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
pid->interpolate_elem= NULL;
pid->write_header= ptcache_write_basic_header;
pid->read_header= ptcache_read_basic_header;
pid->data_types= (1<<BPHYS_DATA_LOCATION); // bogus values tot make pointcache happy
pid->info_types= 0;
}
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
void BKE_ptcache_id_from_cloth(PTCacheID *pid, Object *ob, ClothModifierData *clmd)
{
memset(pid, 0, sizeof(PTCacheID));
pid->ob= ob;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->calldata= clmd;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
pid->type= PTCACHE_TYPE_CLOTH;
Pointcache: *introducing unique ID's following brechts hint from ML Enhancements resulting from this: * multiple caches per modifier stack position
2009-08-25 18:41:36 +00:00
pid->stack_index= clmd->point_cache->index;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
pid->cache= clmd->point_cache;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->cache_ptr= &clmd->point_cache;
pid->ptcaches= &clmd->ptcaches;
pid->totpoint= pid->totwrite= ptcache_totpoint_cloth;
pid->write_elem= ptcache_write_cloth;
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
pid->write_stream = NULL;
pid->read_stream = NULL;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->read_elem= ptcache_read_cloth;
pid->interpolate_elem= ptcache_interpolate_cloth;
pid->write_header= ptcache_write_basic_header;
pid->read_header= ptcache_read_basic_header;
pid->data_types= (1<<BPHYS_DATA_LOCATION) | (1<<BPHYS_DATA_VELOCITY) | (1<<BPHYS_DATA_XCONST);
pid->info_types= 0;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
void BKE_ptcache_ids_from_object(ListBase *lb, Object *ob)
{
PTCacheID *pid;
ParticleSystem *psys;
ModifierData *md;
lb->first= lb->last= NULL;
if(ob->soft) {
pid= MEM_callocN(sizeof(PTCacheID), "PTCacheID");
BKE_ptcache_id_from_softbody(pid, ob, ob->soft);
BLI_addtail(lb, pid);
}
for(psys=ob->particlesystem.first; psys; psys=psys->next) {
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
if(psys->part) {
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
pid= MEM_callocN(sizeof(PTCacheID), "PTCacheID");
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_id_from_particles(pid, ob, psys);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
BLI_addtail(lb, pid);
}
}
for(md=ob->modifiers.first; md; md=md->next) {
if(md->type == eModifierType_Cloth) {
pid= MEM_callocN(sizeof(PTCacheID), "PTCacheID");
BKE_ptcache_id_from_cloth(pid, ob, (ClothModifierData*)md);
BLI_addtail(lb, pid);
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
if(md->type == eModifierType_Smoke) {
SmokeModifierData *smd = (SmokeModifierData *)md;
if(smd->type & MOD_SMOKE_TYPE_DOMAIN)
{
pid= MEM_callocN(sizeof(PTCacheID), "PTCacheID");
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
BKE_ptcache_id_from_smoke(pid, ob, (SmokeModifierData*)md);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
BLI_addtail(lb, pid);
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
pid= MEM_callocN(sizeof(PTCacheID), "PTCacheID");
BKE_ptcache_id_from_smoke_turbulence(pid, ob, (SmokeModifierData*)md);
BLI_addtail(lb, pid);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
}
}
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* File handling */
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
/* Takes an Object ID and returns a unique name
- id: object id
- cfra: frame for the cache, can be negative
- stack_index: index in the modifier stack. we can have cache for more then one stack_index
*/
Fix for part of bug #17759: point cache clearing did too much, also clearing other physics systems on the same object.
2008-10-04 21:26:48 +00:00
#define MAX_PTCACHE_PATH FILE_MAX
#define MAX_PTCACHE_FILE ((FILE_MAXDIR+FILE_MAXFILE)*2)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
static int ptcache_path(PTCacheID *pid, char *filename)
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
{
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
Library *lib;
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
size_t i;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
lib= (pid)? pid->ob->id.lib: NULL;
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
if(pid->cache->flag & PTCACHE_EXTERNAL) {
strcpy(filename, pid->cache->path);
return BLI_add_slash(filename); /* new strlen() */
}
else if (G.relbase_valid || lib) {
Fix for part of bug #17759: point cache clearing did too much, also clearing other physics systems on the same object.
2008-10-04 21:26:48 +00:00
char file[MAX_PTCACHE_PATH]; /* we dont want the dir, only the file */
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
char *blendfilename;
blendfilename= (lib)? lib->filename: G.sce;
BLI_split_dirfile was being used in cases it should not have been, Added BLI_split_dirfile_basic, that only splits the path into directory and file. without checking the dir exists or creating it, without changing the original string that is passed to it.
2008-04-26 13:08:57 +00:00
BLI_split_dirfile_basic(blendfilename, NULL, file);
Pointcache for unsaved files is saved in /tmp/blendcache_untitled/... instead of not generating pointcache at all, be careful since the temp path can be NULL or missing. This is messy because the files can be left there when blender quits, however saveBuffers and sessions alredy do :/ Some cleanup function needs to Blender that deals with this!
2008-02-12 17:11:45 +00:00
i = strlen(file);
/* remove .blend */
if (i > 6)
file[i-6] = '\0';
Fix for part of bug #17759: point cache clearing did too much, also clearing other physics systems on the same object.
2008-10-04 21:26:48 +00:00
snprintf(filename, MAX_PTCACHE_PATH, "//"PTCACHE_PATH"%s", file); /* add blend file name to pointcache dir */
Changed frame numbering to only alter hashes if they are in the filename (not the directory name) to fix bug [#10566] File Open Dialog replaces '#' with '0' in directory names. removed frame numbering from BLI_convertstringcode into its own function (BLI_convertstringframe), many uses of BLI_convertstringcode were passing dummy frames values anyway. in cases where adding the current frame number to a filename is needed run BLI_convertstringframe(...) after BLI_convertstringcode(...) There are some cases Im not sure BLI_convertstringframe is needed, these have been commented as todo, but at least have the same functionality they used to.
2008-05-04 09:41:15 +00:00
BLI_convertstringcode(filename, blendfilename);
- Support for importing python packages. (directories of python scripts containing an __init__.py) - BLI_add_slash returns the new string length. - BLI_where_am_i() would often have /./ in the path (not incorrect but annoying, got into python exceptions) - release/ui/space_image.py, py error referencing invalid keyword args.
2009-07-19 17:45:14 +00:00
return BLI_add_slash(filename); /* new strlen() */
Pointcache for unsaved files is saved in /tmp/blendcache_untitled/... instead of not generating pointcache at all, be careful since the temp path can be NULL or missing. This is messy because the files can be left there when blender quits, however saveBuffers and sessions alredy do :/ Some cleanup function needs to Blender that deals with this!
2008-02-12 17:11:45 +00:00
}
anim.c, buttons_object.c, readfile.c, BKE_blender.h - dupliFace scale option, needed for leaves. modifier.c, BKE_modifier.h - flag for modifiers to say they use pointcache, also new func modifiers_usesPointCache renamed //pointcache to //blendcache_blendfilename so blendfiles in the same dir dont conflict, and other to show this dir isnt limited to pointcache only (nodes way want to use this) wizard_curve2tree.py - better defaults for pretty tree's
2007-11-30 10:38:59 +00:00
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
/* use the temp path. this is weak but better then not using point cache at all */
/* btempdir is assumed to exist and ALWAYS has a trailing slash */
Fix for part of bug #17759: point cache clearing did too much, also clearing other physics systems on the same object.
2008-10-04 21:26:48 +00:00
snprintf(filename, MAX_PTCACHE_PATH, "%s"PTCACHE_PATH"%d", btempdir, abs(getpid()));
- Support for importing python packages. (directories of python scripts containing an __init__.py) - BLI_add_slash returns the new string length. - BLI_where_am_i() would often have /./ in the path (not incorrect but annoying, got into python exceptions) - release/ui/space_image.py, py error referencing invalid keyword args.
2009-07-19 17:45:14 +00:00
return BLI_add_slash(filename); /* new strlen() */
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
}
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
static int BKE_ptcache_id_filename(PTCacheID *pid, char *filename, int cfra, short do_path, short do_ext)
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
{
int len=0;
char *idname;
char *newname;
filename[0] = '\0';
newname = filename;
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
if (!G.relbase_valid && (pid->cache->flag & PTCACHE_EXTERNAL)==0) return 0; /* save blend file before using disk pointcache */
anim.c, buttons_object.c, readfile.c, BKE_blender.h - dupliFace scale option, needed for leaves. modifier.c, BKE_modifier.h - flag for modifiers to say they use pointcache, also new func modifiers_usesPointCache renamed //pointcache to //blendcache_blendfilename so blendfiles in the same dir dont conflict, and other to show this dir isnt limited to pointcache only (nodes way want to use this) wizard_curve2tree.py - better defaults for pretty tree's
2007-11-30 10:38:59 +00:00
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
/* start with temp dir */
if (do_path) {
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
len = ptcache_path(pid, filename);
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
newname += len;
}
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
if(strcmp(pid->cache->name, "")==0 && (pid->cache->flag & PTCACHE_EXTERNAL)==0) {
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
idname = (pid->ob->id.name+2);
/* convert chars to hex so they are always a valid filename */
while('\0' != *idname) {
snprintf(newname, MAX_PTCACHE_FILE, "%02X", (char)(*idname++));
newname+=2;
len += 2;
}
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
else {
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
int temp = (int)strlen(pid->cache->name);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
strcpy(newname, pid->cache->name);
newname+=temp;
len += temp;
}
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
if (do_ext) {
Pointcache: *introducing unique ID's following brechts hint from ML Enhancements resulting from this: * multiple caches per modifier stack position
2009-08-25 18:41:36 +00:00
if(pid->cache->index < 0)
Pointcache: *forgot 1 rename
2009-08-25 19:58:42 +00:00
pid->cache->index = pid->stack_index = object_insert_ptcache(pid->ob);
Pointcache: *introducing unique ID's following brechts hint from ML Enhancements resulting from this: * multiple caches per modifier stack position
2009-08-25 18:41:36 +00:00
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
if(pid->cache->flag & PTCACHE_EXTERNAL) {
if(pid->cache->index >= 0)
snprintf(newname, MAX_PTCACHE_FILE, "_%06d_%02d"PTCACHE_EXT, cfra, pid->stack_index); /* always 6 chars */
else
snprintf(newname, MAX_PTCACHE_FILE, "_%06d"PTCACHE_EXT, cfra); /* always 6 chars */
}
else {
snprintf(newname, MAX_PTCACHE_FILE, "_%06d_%02d"PTCACHE_EXT, cfra, pid->stack_index); /* always 6 chars */
}
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
len += 16;
}
return len; /* make sure the above string is always 16 chars */
}
/* youll need to close yourself after! */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
static PTCacheFile *ptcache_file_open(PTCacheID *pid, int mode, int cfra)
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
{
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
PTCacheFile *pf;
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
FILE *fp = NULL;
char filename[(FILE_MAXDIR+FILE_MAXFILE)*2];
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
/* don't allow writing for linked objects */
if(pid->ob->id.lib && mode == PTCACHE_FILE_WRITE)
return NULL;
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
if (!G.relbase_valid && (pid->cache->flag & PTCACHE_EXTERNAL)==0) return NULL; /* save blend file before using disk pointcache */
anim.c, buttons_object.c, readfile.c, BKE_blender.h - dupliFace scale option, needed for leaves. modifier.c, BKE_modifier.h - flag for modifiers to say they use pointcache, also new func modifiers_usesPointCache renamed //pointcache to //blendcache_blendfilename so blendfiles in the same dir dont conflict, and other to show this dir isnt limited to pointcache only (nodes way want to use this) wizard_curve2tree.py - better defaults for pretty tree's
2007-11-30 10:38:59 +00:00
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
BKE_ptcache_id_filename(pid, filename, cfra, 1, 1);
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
if (mode==PTCACHE_FILE_READ) {
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
if (!BLI_exists(filename)) {
return NULL;
}
fp = fopen(filename, "rb");
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
} else if (mode==PTCACHE_FILE_WRITE) {
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
BLI_make_existing_file(filename); /* will create the dir if needs be, same as //textures is created */
fp = fopen(filename, "wb");
}
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
if (!fp)
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
return NULL;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
pf= MEM_mallocN(sizeof(PTCacheFile), "PTCacheFile");
pf->fp= fp;
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
return pf;
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
static void ptcache_file_close(PTCacheFile *pf)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
fclose(pf->fp);
MEM_freeN(pf);
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
static int ptcache_file_read(PTCacheFile *pf, void *f, size_t tot, int size)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return (fread(f, size, tot, pf->fp) == tot);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
static int ptcache_file_write(PTCacheFile *pf, void *f, size_t tot, int size)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return (fwrite(f, size, tot, pf->fp) == tot);
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
static int ptcache_file_read_data(PTCacheFile *pf)
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
{
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int i;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(i=0; i<BPHYS_TOT_DATA; i++) {
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
if(pf->data_types & (1<<i) && !ptcache_file_read(pf, pf->cur[i], 1, ptcache_data_size[i]))
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return 0;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return 1;
}
static int ptcache_file_write_data(PTCacheFile *pf)
{
int i;
for(i=0; i<BPHYS_TOT_DATA; i++) {
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
if(pf->data_types & (1<<i) && !ptcache_file_write(pf, pf->cur[i], 1, ptcache_data_size[i]))
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return 0;
Keyed physics refresh: - Keyed targets in one list instead of "chaining", this opens up many more possibilities than before and is much less obscure. - Better keyed timing possibilities (time & duration in frames). - Looping over keyed targets list. Other changes: - New child setting "length" with threshold (great for guard & underfur with a single particle system) - Modularization of path interpolation code. - Cleared "animateable" flags from many particle settings that shouldn't be animateable. Fixes: - Keyed particles weren't copied properly (ancient bug). - Hair rotations depended on global z-axis for root rotation so downward facing strands could flip rotation randomly. Now initial hair rotation is derived from face dependent hair matrix. (This caused for example ugly flipping of child strands on some cases). - Children from faces weren't calculated straight after activating them. - Multiple disk cache fixes: * Disk cache didn't work correctly with frame steps. * Conversion from memory cache to disk cache didn't work with cloth. * Disk cache crashed on some frames trying to close an already closed cache file. * Trails didn't work with disk cached particles. - Child rough effects were effected by emitter object loc/rot making them next to useless with animation, why didn't anybody tell me this!! - Lots of random code cleanup.
2009-07-12 23:38:47 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return 1;
}
static int ptcache_file_read_header_begin(PTCacheFile *pf)
{
int error=0;
char bphysics[8];
pf->data_types = 0;
if(fread(bphysics, sizeof(char), 8, pf->fp) != 8)
error = 1;
if(!error && strncmp(bphysics, "BPHYSICS", 8))
error = 1;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(!error && !fread(&pf->type, sizeof(int), 1, pf->fp))
error = 1;
/* if there was an error set file as it was */
if(error)
fseek(pf->fp, 0, SEEK_SET);
return !error;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
static int ptcache_file_write_header_begin(PTCacheFile *pf)
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
{
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
char *bphysics = "BPHYSICS";
if(fwrite(bphysics, sizeof(char), 8, pf->fp) != 8)
return 0;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(!fwrite(&pf->type, sizeof(int), 1, pf->fp))
return 0;
return 1;
}
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* Data pointer handling */
int BKE_ptcache_data_size(int data_type)
{
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
return ptcache_data_size[data_type];
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
static void ptcache_file_init_pointers(PTCacheFile *pf)
{
int data_types = pf->data_types;
pf->cur[BPHYS_DATA_INDEX] = data_types & (1<<BPHYS_DATA_INDEX) ? &pf->data.index : NULL;
pf->cur[BPHYS_DATA_LOCATION] = data_types & (1<<BPHYS_DATA_LOCATION) ? &pf->data.loc : NULL;
pf->cur[BPHYS_DATA_VELOCITY] = data_types & (1<<BPHYS_DATA_VELOCITY) ? &pf->data.vel : NULL;
pf->cur[BPHYS_DATA_ROTATION] = data_types & (1<<BPHYS_DATA_ROTATION) ? &pf->data.rot : NULL;
pf->cur[BPHYS_DATA_AVELOCITY] = data_types & (1<<BPHYS_DATA_AVELOCITY) ? &pf->data.ave : NULL;
pf->cur[BPHYS_DATA_SIZE] = data_types & (1<<BPHYS_DATA_SIZE) ? &pf->data.size : NULL;
pf->cur[BPHYS_DATA_TIMES] = data_types & (1<<BPHYS_DATA_TIMES) ? &pf->data.times : NULL;
pf->cur[BPHYS_DATA_BOIDS] = data_types & (1<<BPHYS_DATA_BOIDS) ? &pf->data.boids : NULL;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
void BKE_ptcache_mem_init_pointers(PTCacheMem *pm)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
{
int data_types = pm->data_types;
int i;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(i=0; i<BPHYS_TOT_DATA; i++)
pm->cur[i] = data_types & (1<<i) ? pm->data[i] : NULL;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
void BKE_ptcache_mem_incr_pointers(PTCacheMem *pm)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
{
int i;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(i=0; i<BPHYS_TOT_DATA; i++) {
if(pm->cur[i])
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
pm->cur[i] = (char*)pm->cur[i] + ptcache_data_size[i];
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
}
static void ptcache_alloc_data(PTCacheMem *pm)
{
int data_types = pm->data_types;
int totpoint = pm->totpoint;
int i;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(i=0; i<BPHYS_TOT_DATA; i++) {
if(data_types & (1<<i))
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
pm->data[i] = MEM_callocN(totpoint * ptcache_data_size[i], "PTCache Data");
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
static void ptcache_free_data(void *data[])
{
int i;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(i=0; i<BPHYS_TOT_DATA; i++) {
if(data[i])
MEM_freeN(data[i]);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
static void ptcache_copy_data(void *from[], void *to[])
{
int i;
for(i=0; i<BPHYS_TOT_DATA; i++) {
if(from[i])
Particles cleanup, optimizations and some small new stuff. New stuff - Bending springs for hair dynamics. Code cleanup & optimization - Disabled reactor particles temporarily for cleanup, it's a clumsy system that will be replaced with something better. - Removed child seams, something better will come here too :) - Normal particle drawing data is now saved between redraws if the particles don't move between redraws. * For example rotating the 3d view is now realtime even with 1M particles. - Many random values for particles now come from a lookup table making things much faster. - Most accessed small point cache functions are now much faster as macros. - Lot's of general code cleanup. - Nothing big should have changed so if something doesn't work like it used to it's probably just a typo somewhere :)
2009-09-17 22:00:49 +00:00
memcpy(to[i], from[i], ptcache_data_size[i]);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
static int ptcache_pid_old_elemsize(PTCacheID *pid)
{
if(pid->type==PTCACHE_TYPE_SOFTBODY)
return 6 * sizeof(float);
else if(pid->type==PTCACHE_TYPE_PARTICLES)
return sizeof(ParticleKey);
else if(pid->type==PTCACHE_TYPE_CLOTH)
return 9 * sizeof(float);
return 0;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
/* reads cache from disk or memory */
/* possible to get old or interpolated result */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int BKE_ptcache_read_cache(PTCacheID *pid, float cfra, float frs_sec)
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
{
PTCacheFile *pf=NULL, *pf2=NULL;
PTCacheMem *pm=NULL, *pm2=NULL;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
float old_data1[14], old_data2[14];
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
int cfrai = (int)cfra;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int old_elemsize = ptcache_pid_old_elemsize(pid);
2.5: warning fixes Directories intern/ and source/blender/ now compile warning free again here with scons/gcc.
2009-08-15 16:36:25 +00:00
int i;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int cfra1 = 0, cfra2 = 0;
int totpoint = 0, totpoint2 = 0;
int *index = &i, *index2 = &i;
2.5 - Warning cleanups (for mingw+scons) Also, made the Outliner's horizontal scrollbar work better for keymaps view. It's still using an approximation of the width, but at least you can scroll now.
2009-08-26 00:38:43 +00:00
int use_old = 0, old_frame = 0;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int ret = 0, error = 0;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* nothing to read to */
if(pid->totpoint(pid->calldata) == 0)
return 0;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pid->cache->flag & PTCACHE_READ_INFO) {
pid->cache->flag &= ~PTCACHE_READ_INFO;
BKE_ptcache_read_cache(pid, 0, frs_sec);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* first check if we have the actual frame cached */
if(cfra == (float)cfrai) {
if(pid->cache->flag & PTCACHE_DISK_CACHE) {
pf= ptcache_file_open(pid, PTCACHE_FILE_READ, cfrai);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
else {
pm = pid->cache->mem_cache.first;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(; pm; pm=pm->next) {
if(pm->frame == cfrai)
break;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
}
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
/* no exact cache frame found so try to find cached frames around cfra */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(!pm && !pf) {
if(pid->cache->flag & PTCACHE_DISK_CACHE) {
pf=NULL;
while(cfrai > pid->cache->startframe && !pf) {
cfrai--;
pf= ptcache_file_open(pid, PTCACHE_FILE_READ, cfrai);
cfra1 = cfrai;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
old_frame = cfrai;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
cfrai = (int)cfra;
while(cfrai < pid->cache->endframe && !pf2) {
cfrai++;
pf2= ptcache_file_open(pid, PTCACHE_FILE_READ, cfrai);
cfra2 = cfrai;
}
if(pf && !pf2) {
pf2 = pf;
pf = NULL;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
else if(pid->cache->mem_cache.first){
pm = pid->cache->mem_cache.first;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
while(pm->next && pm->next->frame < cfra)
pm= pm->next;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pm) {
old_frame = pm->frame;
cfra1 = pm->frame;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pm2 = pid->cache->mem_cache.last;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pm2 && pm2->frame < cfra)
pm2 = NULL;
else {
while(pm2->prev && pm2->prev->frame > cfra)
pm2= pm2->prev;
if(pm2)
cfra2 = pm2->frame;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pm && !pm2) {
pm2 = pm;
pm = NULL;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(!pm && !pm2 && !pf && !pf2)
return 0;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pm) {
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_init_pointers(pm);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
totpoint = pm->totpoint;
index = pm->data_types & (1<<BPHYS_DATA_INDEX) ? pm->cur[BPHYS_DATA_INDEX] : &i;
}
if(pm2) {
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_init_pointers(pm2);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
totpoint2 = pm2->totpoint;
index2 = pm2->data_types & (1<<BPHYS_DATA_INDEX) ? pm2->cur[BPHYS_DATA_INDEX] : &i;
}
if(pf) {
if(ptcache_file_read_header_begin(pf)) {
if(pf->type != pid->type) {
/* todo report error */
ptcache_file_close(pf);
pf = NULL;
}
else if(pid->read_header(pf)) {
ptcache_file_init_pointers(pf);
totpoint = pf->totpoint;
index = pf->data_types & BPHYS_DATA_INDEX ? &pf->data.index : &i;
}
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
else {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* fall back to old cache file format */
use_old = 1;
totpoint = pid->totpoint(pid->calldata);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
if(pf2) {
if(ptcache_file_read_header_begin(pf2)) {
if(pf2->type != pid->type) {
/* todo report error */
ptcache_file_close(pf2);
pf2 = NULL;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
else if(pid->read_header(pf2)) {
ptcache_file_init_pointers(pf2);
totpoint2 = pf2->totpoint;
index2 = pf->data_types & BPHYS_DATA_INDEX ? &pf2->data.index : &i;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
else {
/* fall back to old cache file format */
use_old = 1;
totpoint2 = pid->totpoint(pid->calldata);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* don't read old cache if allready simulated past cached frame */
if(!pm && !pf && cfra1 && cfra1 <= pid->cache->simframe)
error = 1;
if(cfra1 && cfra1==cfra2)
error = 1;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
if(!error)
{
if(pf && pid->read_stream) {
if(totpoint != pid->totpoint(pid->calldata))
error = 1;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
else
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
{
// we have stream writing here
pid->read_stream(pf, pid->calldata);
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
}
totpoint = MIN2(totpoint, pid->totpoint(pid->calldata));
if(!error)
{
for(i=0; i<totpoint; i++) {
/* read old cache file format */
if(use_old) {
if(pid->read_elem && ptcache_file_read(pf, (void*)old_data1, 1, old_elemsize))
pid->read_elem(i, pid->calldata, NULL, frs_sec, cfra, old_data1);
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
else if(pid->read_elem)
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
{ error = 1; break; }
}
else {
if(pid->read_elem && (pm || ptcache_file_read_data(pf)))
pid->read_elem(*index, pid->calldata, pm ? pm->cur : pf->cur, frs_sec, cfra1 ? (float)cfra1 : (float)cfrai, NULL);
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
else if(pid->read_elem)
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
{ error = 1; break; }
}
if(pm) {
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_incr_pointers(pm);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
index = pm->data_types & (1<<BPHYS_DATA_INDEX) ? pm->cur[BPHYS_DATA_INDEX] : &i;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
if(!error)
{
if(pf2 && pid->read_stream) {
if(totpoint2 != pid->totpoint(pid->calldata))
error = 1;
else
{
// we have stream writing here
pid->read_stream(pf2, pid->calldata);
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
totpoint2 = MIN2(totpoint2, pid->totpoint(pid->calldata));
if(!error)
{
for(i=0; i<totpoint2; i++) {
/* read old cache file format */
if(use_old) {
if(pid->read_elem && ptcache_file_read(pf2, (void*)old_data2, 1, old_elemsize)) {
if(!pf && pf2)
pid->read_elem(i, pid->calldata, NULL, frs_sec, (float)cfra2, old_data2);
else if(pid->interpolate_elem)
pid->interpolate_elem(i, pid->calldata, NULL, frs_sec, cfra, (float)cfra1, (float)cfra2, old_data2);
else
{ error = 1; break; }
}
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
else if(pid->read_elem)
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
{ error = 1; break; }
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
else {
if(pid->read_elem && (pm2 || ptcache_file_read_data(pf2))) {
if((!pf && pf2) || (!pm && pm2))
pid->read_elem(*index2, pid->calldata, pm2 ? pm2->cur : pf2->cur, frs_sec, (float)cfra2, NULL);
else if(pid->interpolate_elem)
pid->interpolate_elem(*index2, pid->calldata, pm2 ? pm2->cur : pf2->cur, frs_sec, cfra, (float)cfra1, (float)cfra2, NULL);
else
{ error = 1; break; }
}
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
else if(pid->read_elem)
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
{ error = 1; break; }
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
if(pm2) {
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_incr_pointers(pm2);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
index2 = pm2->data_types & (1<<BPHYS_DATA_INDEX) ? pm2->cur[BPHYS_DATA_INDEX] : &i;
}
Keyed physics refresh: - Keyed targets in one list instead of "chaining", this opens up many more possibilities than before and is much less obscure. - Better keyed timing possibilities (time & duration in frames). - Looping over keyed targets list. Other changes: - New child setting "length" with threshold (great for guard & underfur with a single particle system) - Modularization of path interpolation code. - Cleared "animateable" flags from many particle settings that shouldn't be animateable. Fixes: - Keyed particles weren't copied properly (ancient bug). - Hair rotations depended on global z-axis for root rotation so downward facing strands could flip rotation randomly. Now initial hair rotation is derived from face dependent hair matrix. (This caused for example ugly flipping of child strands on some cases). - Children from faces weren't calculated straight after activating them. - Multiple disk cache fixes: * Disk cache didn't work correctly with frame steps. * Conversion from memory cache to disk cache didn't work with cloth. * Disk cache crashed on some frames trying to close an already closed cache file. * Trails didn't work with disk cached particles. - Child rough effects were effected by emitter object loc/rot making them next to useless with animation, why didn't anybody tell me this!! - Lots of random code cleanup.
2009-07-12 23:38:47 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pm || pf)
ret = (pm2 || pf2) ? PTCACHE_READ_INTERPOLATED : PTCACHE_READ_EXACT;
else if(pm2 || pf2) {
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
ret = PTCACHE_READ_OLD;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pid->cache->simframe = old_frame;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pf) {
ptcache_file_close(pf);
pf = NULL;
}
if(pf2) {
ptcache_file_close(pf2);
pf = NULL;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if((pid->cache->flag & PTCACHE_QUICK_CACHE)==0) {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
cfrai = (int)cfra;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
/* clear invalid cache frames so that better stuff can be simulated */
if(pid->cache->flag & PTCACHE_OUTDATED) {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_AFTER, cfrai);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
else if(pid->cache->flag & PTCACHE_FRAMES_SKIPPED) {
if(cfra <= pid->cache->last_exact)
pid->cache->flag &= ~PTCACHE_FRAMES_SKIPPED;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_AFTER, MAX2(cfrai,pid->cache->last_exact));
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
return (error ? 0 : ret);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* TODO for later */
//static void ptcache_make_index_array(PTCacheMem *pm, int totpoint)
//{
// int i, *index;
//
// if(pm->index_array) {
// MEM_freeN(pm->index_array);
// pm->index_array = NULL;
// }
//
// if(!pm->data[BPHYS_DATA_INDEX])
// return;
//
// pm->index_array = MEM_callocN(totpoint * sizeof(int), "PTCacheMem index_array");
// index = pm->data[BPHYS_DATA_INDEX];
//
// for(i=0; i<pm->totpoint; i++, index++)
// pm->index_array[*index] = i;
//}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
/* writes cache to disk or memory */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int BKE_ptcache_write_cache(PTCacheID *pid, int cfra)
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
{
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
PointCache *cache = pid->cache;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
PTCacheFile *pf= NULL;
2.5: warning fixes Directories intern/ and source/blender/ now compile warning free again here with scons/gcc.
2009-08-15 16:36:25 +00:00
int i;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int totpoint = pid->totpoint(pid->calldata);
Keyed physics refresh: - Keyed targets in one list instead of "chaining", this opens up many more possibilities than before and is much less obscure. - Better keyed timing possibilities (time & duration in frames). - Looping over keyed targets list. Other changes: - New child setting "length" with threshold (great for guard & underfur with a single particle system) - Modularization of path interpolation code. - Cleared "animateable" flags from many particle settings that shouldn't be animateable. Fixes: - Keyed particles weren't copied properly (ancient bug). - Hair rotations depended on global z-axis for root rotation so downward facing strands could flip rotation randomly. Now initial hair rotation is derived from face dependent hair matrix. (This caused for example ugly flipping of child strands on some cases). - Children from faces weren't calculated straight after activating them. - Multiple disk cache fixes: * Disk cache didn't work correctly with frame steps. * Conversion from memory cache to disk cache didn't work with cloth. * Disk cache crashed on some frames trying to close an already closed cache file. * Trails didn't work with disk cached particles. - Child rough effects were effected by emitter object loc/rot making them next to useless with animation, why didn't anybody tell me this!! - Lots of random code cleanup.
2009-07-12 23:38:47 +00:00
int add = 0, overwrite = 0;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(totpoint == 0 || cfra < 0
|| (cfra ? pid->data_types == 0 : pid->info_types == 0))
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
return 0;
if(cache->flag & PTCACHE_DISK_CACHE) {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int efra = cache->endframe;
Keyed physics refresh: - Keyed targets in one list instead of "chaining", this opens up many more possibilities than before and is much less obscure. - Better keyed timing possibilities (time & duration in frames). - Looping over keyed targets list. Other changes: - New child setting "length" with threshold (great for guard & underfur with a single particle system) - Modularization of path interpolation code. - Cleared "animateable" flags from many particle settings that shouldn't be animateable. Fixes: - Keyed particles weren't copied properly (ancient bug). - Hair rotations depended on global z-axis for root rotation so downward facing strands could flip rotation randomly. Now initial hair rotation is derived from face dependent hair matrix. (This caused for example ugly flipping of child strands on some cases). - Children from faces weren't calculated straight after activating them. - Multiple disk cache fixes: * Disk cache didn't work correctly with frame steps. * Conversion from memory cache to disk cache didn't work with cloth. * Disk cache crashed on some frames trying to close an already closed cache file. * Trails didn't work with disk cached particles. - Child rough effects were effected by emitter object loc/rot making them next to useless with animation, why didn't anybody tell me this!! - Lots of random code cleanup.
2009-07-12 23:38:47 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(cfra==0)
add = 1;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
/* allways start from scratch on the first frame */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
else if(cfra == cache->startframe) {
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, cfra);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
cache->flag &= ~PTCACHE_REDO_NEEDED;
add = 1;
}
else {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int ofra;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
/* find last cached frame */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
while(efra > cache->startframe && !BKE_ptcache_id_exist(pid, efra))
efra--;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
/* find second last cached frame */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ofra = efra-1;
while(ofra > cache->startframe && !BKE_ptcache_id_exist(pid, ofra))
ofra--;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(efra >= cache->startframe && cfra > efra) {
if(ofra >= cache->startframe && efra - ofra < cache->step)
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
overwrite = 1;
else
add = 1;
}
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if(add || overwrite) {
if(overwrite)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_FRAME, efra);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pf = ptcache_file_open(pid, PTCACHE_FILE_WRITE, cfra);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if(!pf)
return 0;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pf->type = pid->type;
pf->totpoint = cfra ? totpoint : pid->totwrite(pid->calldata);
pf->data_types = cfra ? pid->data_types : pid->info_types;
if(!ptcache_file_write_header_begin(pf) || !pid->write_header(pf)) {
ptcache_file_close(pf);
return 0;
}
ptcache_file_init_pointers(pf);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
if(pf && pid->write_stream) {
// we have stream writing here
pid->write_stream(pf, pid->calldata);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
else
for(i=0; i<totpoint; i++) {
if(pid->write_elem && pid->write_elem(i, pid->calldata, pf->cur))
if(!ptcache_file_write_data(pf)) {
ptcache_file_close(pf);
return 0;
}
}
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
else {
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
PTCacheMem *pm;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
PTCacheMem *pm2;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
pm2 = cache->mem_cache.first;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* don't write info file in memory */
if(cfra==0)
return 1;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
/* allways start from scratch on the first frame */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(cfra == cache->startframe) {
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, cfra);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
cache->flag &= ~PTCACHE_REDO_NEEDED;
add = 1;
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
else if (cache->mem_cache.last) {
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
pm2 = cache->mem_cache.last;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pm2 && cfra > pm2->frame) {
Keyed physics refresh: - Keyed targets in one list instead of "chaining", this opens up many more possibilities than before and is much less obscure. - Better keyed timing possibilities (time & duration in frames). - Looping over keyed targets list. Other changes: - New child setting "length" with threshold (great for guard & underfur with a single particle system) - Modularization of path interpolation code. - Cleared "animateable" flags from many particle settings that shouldn't be animateable. Fixes: - Keyed particles weren't copied properly (ancient bug). - Hair rotations depended on global z-axis for root rotation so downward facing strands could flip rotation randomly. Now initial hair rotation is derived from face dependent hair matrix. (This caused for example ugly flipping of child strands on some cases). - Children from faces weren't calculated straight after activating them. - Multiple disk cache fixes: * Disk cache didn't work correctly with frame steps. * Conversion from memory cache to disk cache didn't work with cloth. * Disk cache crashed on some frames trying to close an already closed cache file. * Trails didn't work with disk cached particles. - Child rough effects were effected by emitter object loc/rot making them next to useless with animation, why didn't anybody tell me this!! - Lots of random code cleanup.
2009-07-12 23:38:47 +00:00
if(pm2->prev && pm2->frame - pm2->prev->frame < cache->step)
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
overwrite = 1;
else
add = 1;
}
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
else
add = 1;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(add || overwrite) {
if(overwrite)
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_FRAME, pm2->frame);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
pm = MEM_callocN(sizeof(PTCacheMem), "Pointcache mem");
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pm->totpoint = pid->totwrite(pid->calldata);
pm->data_types = cfra ? pid->data_types : pid->info_types;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_alloc_data(pm);
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_init_pointers(pm);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(i=0; i<totpoint; i++) {
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
if(pid->write_elem && pid->write_elem(i, pid->calldata, pm->cur))
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_incr_pointers(pm);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
//ptcache_make_index_array(pm, pid->totpoint(pid->calldata));
pm->frame = cfra;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
BLI_addtail(&cache->mem_cache, pm);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
}
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if(add || overwrite) {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(cfra - cache->last_exact == 1
|| cfra == cache->startframe) {
cache->last_exact = cfra;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
cache->flag &= ~PTCACHE_FRAMES_SKIPPED;
}
else
cache->flag |= PTCACHE_FRAMES_SKIPPED;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
if(pf)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_file_close(pf);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
BKE_ptcache_update_info(pid);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
return 1;
}
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
/* youll need to close yourself after!
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
* mode - PTCACHE_CLEAR_ALL,
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
*/
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* Clears & resets */
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
void BKE_ptcache_id_clear(PTCacheID *pid, int mode, int cfra)
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
{
int len; /* store the length of the string */
/* mode is same as fopen's modes */
DIR *dir;
struct dirent *de;
Fix for part of bug #17759: point cache clearing did too much, also clearing other physics systems on the same object.
2008-10-04 21:26:48 +00:00
char path[MAX_PTCACHE_PATH];
char filename[MAX_PTCACHE_FILE];
char path_full[MAX_PTCACHE_FILE];
char ext[MAX_PTCACHE_PATH];
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
if(!pid->cache || pid->cache->flag & PTCACHE_BAKED)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
return;
/* don't allow clearing for linked objects */
if(pid->ob->id.lib)
return;
Pointcache for unsaved files is saved in /tmp/blendcache_untitled/... instead of not generating pointcache at all, be careful since the temp path can be NULL or missing. This is messy because the files can be left there when blender quits, however saveBuffers and sessions alredy do :/ Some cleanup function needs to Blender that deals with this!
2008-02-12 17:11:45 +00:00
/*if (!G.relbase_valid) return; *//* save blend file before using pointcache */
anim.c, buttons_object.c, readfile.c, BKE_blender.h - dupliFace scale option, needed for leaves. modifier.c, BKE_modifier.h - flag for modifiers to say they use pointcache, also new func modifiers_usesPointCache renamed //pointcache to //blendcache_blendfilename so blendfiles in the same dir dont conflict, and other to show this dir isnt limited to pointcache only (nodes way want to use this) wizard_curve2tree.py - better defaults for pretty tree's
2007-11-30 10:38:59 +00:00
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
/* clear all files in the temp dir with the prefix of the ID and the ".bphys" suffix */
switch (mode) {
case PTCACHE_CLEAR_ALL:
case PTCACHE_CLEAR_BEFORE:
case PTCACHE_CLEAR_AFTER:
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
if(pid->cache->flag & PTCACHE_DISK_CACHE) {
ptcache_path(pid, path);
len = BKE_ptcache_id_filename(pid, filename, cfra, 0, 0); /* no path */
dir = opendir(path);
if (dir==NULL)
return;
snprintf(ext, sizeof(ext), "_%02d"PTCACHE_EXT, pid->stack_index);
while ((de = readdir(dir)) != NULL) {
if (strstr(de->d_name, ext)) { /* do we have the right extension?*/
if (strncmp(filename, de->d_name, len ) == 0) { /* do we have the right prefix */
if (mode == PTCACHE_CLEAR_ALL) {
pid->cache->last_exact = 0;
BLI_join_dirfile(path_full, path, de->d_name);
BLI_delete(path_full, 0, 0);
} else {
/* read the number of the file */
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
int frame, len2 = (int)strlen(de->d_name);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
char num[7];
if (len2 > 15) { /* could crash if trying to copy a string out of this range*/
BLI_strncpy(num, de->d_name + (strlen(de->d_name) - 15), sizeof(num));
frame = atoi(num);
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
if((mode==PTCACHE_CLEAR_BEFORE && frame < cfra) ||
(mode==PTCACHE_CLEAR_AFTER && frame > cfra) ) {
BLI_join_dirfile(path_full, path, de->d_name);
BLI_delete(path_full, 0, 0);
}
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
}
}
}
}
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
closedir(dir);
}
else {
PTCacheMem *pm= pid->cache->mem_cache.first;
PTCacheMem *link= NULL;
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
pm= pid->cache->mem_cache.first;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
if(mode == PTCACHE_CLEAR_ALL) {
pid->cache->last_exact = 0;
for(; pm; pm=pm->next)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_free_data(pm->data);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
BLI_freelistN(&pid->cache->mem_cache);
} else {
while(pm) {
if((mode==PTCACHE_CLEAR_BEFORE && pm->frame < cfra) ||
(mode==PTCACHE_CLEAR_AFTER && pm->frame > cfra) ) {
link = pm;
pm = pm->next;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_free_data(link->data);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
BLI_freelinkN(&pid->cache->mem_cache, link);
}
else
pm = pm->next;
}
}
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
}
break;
case PTCACHE_CLEAR_FRAME:
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
if(pid->cache->flag & PTCACHE_DISK_CACHE) {
if(BKE_ptcache_id_exist(pid, cfra)) {
BKE_ptcache_id_filename(pid, filename, cfra, 1, 1); /* no path */
BLI_delete(filename, 0, 0);
}
}
else {
PTCacheMem *pm = pid->cache->mem_cache.first;
for(; pm; pm=pm->next) {
if(pm->frame == cfra) {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_free_data(pm->data);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
BLI_freelinkN(&pid->cache->mem_cache, pm);
break;
}
}
}
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
break;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
BKE_ptcache_update_info(pid);
Particles ========= Merge of the famous particle patch by Janne Karhu, a full rewrite of the Blender particle system. This includes: - Emitter, Hair and Reactor particle types. - Newtonian, Keyed and Boids physics. - Various particle visualisation and rendering types. - Vertex group and texture control for various properties. - Interpolated child particles from parents. - Hair editing with combing, growing, cutting, .. . - Explode modifier. - Harmonic, Magnetic fields, and multiple falloff types. .. and lots of other things, some more info is here: http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc The new particle system cannot be backwards compatible. Old particle systems are being converted to the new system, but will require tweaking to get them looking the same as before. Point Cache =========== The new system to replace manual baking, based on automatic caching on disk. This is currently used by softbodies and the particle system. See the Cache API section on: http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint Documentation ============= These new features still need good docs for the release logs, help for this is appreciated.
2007-11-26 22:09:57 +00:00
}
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
int BKE_ptcache_id_exist(PTCacheID *pid, int cfra)
2nd try at committing to trunk (instead of particles branch) :) Fixes for bugs in #7833 - Hair softbody cache was reset on rendering. - When Alt-a playback is synced to audio frames are skipped. This caused dynamics caching to go crazy. Now the first loop of playback goes through all frames if there are non cached dynamic systems. Invalid point caches weren't cleared when new systems were created. This caused messed up shapes when softbody was added.
2007-11-29 21:09:16 +00:00
{
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
if(!pid->cache)
return 0;
2nd try at committing to trunk (instead of particles branch) :) Fixes for bugs in #7833 - Hair softbody cache was reset on rendering. - When Alt-a playback is synced to audio frames are skipped. This caused dynamics caching to go crazy. Now the first loop of playback goes through all frames if there are non cached dynamic systems. Invalid point caches weren't cleared when new systems were created. This caused messed up shapes when softbody was added.
2007-11-29 21:09:16 +00:00
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
if(pid->cache->flag & PTCACHE_DISK_CACHE) {
char filename[MAX_PTCACHE_FILE];
BKE_ptcache_id_filename(pid, filename, cfra, 1, 1);
2nd try at committing to trunk (instead of particles branch) :) Fixes for bugs in #7833 - Hair softbody cache was reset on rendering. - When Alt-a playback is synced to audio frames are skipped. This caused dynamics caching to go crazy. Now the first loop of playback goes through all frames if there are non cached dynamic systems. Invalid point caches weren't cleared when new systems were created. This caused messed up shapes when softbody was added.
2007-11-29 21:09:16 +00:00
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
return BLI_exists(filename);
}
else {
PTCacheMem *pm = pid->cache->mem_cache.first;
for(; pm; pm=pm->next) {
if(pm->frame==cfra)
return 1;
}
return 0;
}
2nd try at committing to trunk (instead of particles branch) :) Fixes for bugs in #7833 - Hair softbody cache was reset on rendering. - When Alt-a playback is synced to audio frames are skipped. This caused dynamics caching to go crazy. Now the first loop of playback goes through all frames if there are non cached dynamic systems. Invalid point caches weren't cleared when new systems were created. This caused messed up shapes when softbody was added.
2007-11-29 21:09:16 +00:00
}
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
2.5 Think global, act local! The old favorite G.scene gone! Man... that took almost 2 days. Also removed G.curscreen and G.edbo. Not everything could get solved; here's some notes. - modifiers now store current scene in ModifierData. This is not meant for permanent, but it can probably stick there until we cleaned the anim system and depsgraph to cope better with timing issues. - Game engine G.scene should become an argument for staring it. Didn't solve this yet. - Texture nodes should get scene cfra, but the current implementation is too tightly wrapped to do it easily.
2009-01-04 14:14:06 +00:00
void BKE_ptcache_id_time(PTCacheID *pid, Scene *scene, float cfra, int *startframe, int *endframe, float *timescale)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
Object *ob;
PointCache *cache;
float offset, time, nexttime;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
/* TODO: this has to be sorter out once bsystem_time gets redone, */
/* now caches can handle interpolating etc. too - jahka */
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
/* time handling for point cache:
* - simulation time is scaled by result of bsystem_time
* - for offsetting time only time offset is taken into account, since
* that's always the same and can't be animated. a timeoffset which
* varies over time is not simpe to support.
* - field and motion blur offsets are currently ignored, proper solution
* is probably to interpolate results from two frames for that ..
*/
ob= pid->ob;
cache= pid->cache;
if(timescale) {
2.5 Think global, act local! The old favorite G.scene gone! Man... that took almost 2 days. Also removed G.curscreen and G.edbo. Not everything could get solved; here's some notes. - modifiers now store current scene in ModifierData. This is not meant for permanent, but it can probably stick there until we cleaned the anim system and depsgraph to cope better with timing issues. - Game engine G.scene should become an argument for staring it. Didn't solve this yet. - Texture nodes should get scene cfra, but the current implementation is too tightly wrapped to do it easily.
2009-01-04 14:14:06 +00:00
time= bsystem_time(scene, ob, cfra, 0.0f);
nexttime= bsystem_time(scene, ob, cfra+1.0f, 0.0f);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
*timescale= MAX2(nexttime - time, 0.0f);
}
if(startframe && endframe) {
*startframe= cache->startframe;
*endframe= cache->endframe;
2.5: Blender "Animato" - New Animation System Finally, here is the basic (functional) prototype of the new animation system which will allow for the infamous "everything is animatable", and which also addresses several of the more serious shortcomings of the old system. Unfortunately, this will break old animation files (especially right now, as I haven't written the version patching code yet), however, this is for the future. Highlights of the new system: * Scrapped IPO-Curves/IPO/(Action+Constraint-Channels)/Action system, and replaced it with F-Curve/Action. - F-Curves (animators from other packages will feel at home with this name) replace IPO-Curves. - The 'new' Actions, act as the containers for F-Curves, so that they can be reused. They are therefore more akin to the old 'IPO' blocks, except they do not have the blocktype restriction, so you can store materials/texture/geometry F-Curves in the same Action as Object transforms, etc. * F-Curves use RNA-paths for Data Access, hence allowing "every" (where sensible/editable that is) user-accessible setting from RNA to be animated. * Drivers are no longer mixed with Animation Data, so rigs will not be that easily broken and several dependency problems can be eliminated. (NOTE: drivers haven't been hooked up yet, but the code is in place) * F-Curve modifier system allows useful 'large-scale' manipulation of F-Curve values, including (I've only included implemented ones here): envelope deform (similar to lattices to allow broad-scale reshaping of curves), curve generator (polynomial or py-expression), cycles (replacing the old cyclic extrapolation modes, giving more control over this). (NOTE: currently this cannot be tested, as there's not access to them, but the code is all in place) * NLA system with 'tracks' (i.e. layers), and multiple strips per track. (NOTE: NLA system is not yet functional, as it's only partially coded still) There are more nice things that I will be preparing some nice docs for soon, but for now, check for more details: http://lists.blender.org/pipermail/bf-taskforce25/2009-January/000260.html So, what currently works: * I've implemented two basic operators for the 3D-view only to Insert and Delete Keyframes. These are tempolary ones only that will be replaced in due course with 'proper' code. * Object Loc/Rot/Scale can be keyframed. Also, the colour of the 'active' material (Note: this should really be for nth material instead, but that doesn't work yet in RNA) can also be keyframed into the same datablock. * Standard animation refresh (i.e. animation resulting from NLA and Action evaluation) is now done completely separate from drivers before anything else is done after a frame change. Drivers are handled after this in a separate pass, as dictated by depsgraph flags, etc. Notes: * Drivers haven't been hooked up yet * Only objects and data directly linked to objects can be animated. * Depsgraph will need further tweaks. Currently, I've only made sure that it will update some things in the most basic cases (i.e. frame change). * Animation Editors are currently broken (in terms of editing stuff). This will be my next target (priority to get Dopesheet working first, then F-Curve editor - i.e. old IPO Editor) * I've had to put in large chunks of XXX sandboxing for old animation system code all around the place. This will be cleaned up in due course, as some places need special review. In particular, the particles and sequencer code have far too many manual calls to calculate + flush animation info, which is really bad (this is a 'please explain yourselves' call to Physics coders!).
2009-01-17 03:12:50 +00:00
// XXX ipoflag is depreceated - old animation system stuff
if (/*(ob->ipoflag & OB_OFFS_PARENT) &&*/ (ob->partype & PARSLOW)==0) {
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
offset= give_timeoffset(ob);
*startframe += (int)(offset+0.5f);
*endframe += (int)(offset+0.5f);
}
}
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
int BKE_ptcache_id_reset(Scene *scene, PTCacheID *pid, int mode)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
PointCache *cache;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
int reset, clear, after;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
if(!pid->cache)
return 0;
cache= pid->cache;
reset= 0;
clear= 0;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
after= 0;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
if(mode == PTCACHE_RESET_DEPSGRAPH) {
if(!(cache->flag & PTCACHE_BAKED) && !BKE_ptcache_get_continue_physics()) {
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if(cache->flag & PTCACHE_QUICK_CACHE)
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
clear= 1;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
after= 1;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
cache->flag |= PTCACHE_OUTDATED;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
else if(mode == PTCACHE_RESET_BAKED) {
if(!BKE_ptcache_get_continue_physics()) {
reset= 1;
clear= 1;
}
else
cache->flag |= PTCACHE_OUTDATED;
}
else if(mode == PTCACHE_RESET_OUTDATED) {
reset = 1;
Hair dynamics with cloth simulation - Hair dynamics have their own panel in particle settings with the settings from cloth panel that apply to hair. - Basic internal friction force to quickly emulate self collisions and volume preservation. (Still very early code, but gives some idea of what's possible). - Softbody simulation is no longer used for hair. * Old files with sb dynamics should just load the hair without dynamics so new dynamics can be applied. * Invasion of particles exceptions in sb code is finally over. - Collisions with other objects are disabled for now and will be worked out in the future. Other changes/fixes: - Particle mode editing flag wasn't saved properly. - Some old files with edited hair didn't load correctly. - Disabled delete & specials menu in particle mode for non-hair editing. - Fixed yet one more cloth & softbody pointcache update issue. - Disconnect/connect hair now uses only the deformed mesh so it works correctly also for subsurfed emitters. - Hair editing now updates correctly with a moving emitter.
2009-09-10 22:32:33 +00:00
if(cache->flag & PTCACHE_OUTDATED && !(cache->flag & PTCACHE_BAKED)) {
clear= 1;
cache->flag &= ~PTCACHE_OUTDATED;
}
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
if(reset) {
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
cache->flag &= ~(PTCACHE_REDO_NEEDED|PTCACHE_SIMULATION_VALID);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
cache->simframe= 0;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
cache->last_exact= 0;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
if(pid->type == PTCACHE_TYPE_CLOTH)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
cloth_free_modifier(pid->ob, pid->calldata);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
else if(pid->type == PTCACHE_TYPE_SOFTBODY)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
sbFreeSimulation(pid->calldata);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
else if(pid->type == PTCACHE_TYPE_PARTICLES)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
psys_reset(pid->calldata, PSYS_RESET_DEPSGRAPH);
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
else if(pid->type == PTCACHE_TYPE_SMOKE_DOMAIN)
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
smokeModifier_reset(pid->calldata);
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
else if(pid->type == PTCACHE_TYPE_SMOKE_HIGHRES)
Smoke: * Bugfix for non-working high res display * Bugfix for smoke disappearing on 2nd frame
2009-09-09 23:52:48 +00:00
smokeModifier_reset_turbulence(pid->calldata);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
if(clear)
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, 0);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
else if(after)
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_AFTER, CFRA);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
return (reset || clear || after);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
int BKE_ptcache_object_reset(Scene *scene, Object *ob, int mode)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
PTCacheID pid;
ParticleSystem *psys;
ModifierData *md;
Fix for bug [#13479] Particle system "corrupts" when changing material colour and used in conjunction with softbodies - changing particlesystem settings for hair particles cleared & recalculated everything even when hair softbody was baked
2008-07-11 23:47:44 +00:00
int reset, skip;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
reset= 0;
Fix for bug [#13479] Particle system "corrupts" when changing material colour and used in conjunction with softbodies - changing particlesystem settings for hair particles cleared & recalculated everything even when hair softbody was baked
2008-07-11 23:47:44 +00:00
skip= 0;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
if(ob->soft) {
BKE_ptcache_id_from_softbody(&pid, ob, ob->soft);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
reset |= BKE_ptcache_id_reset(scene, &pid, mode);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
for(psys=ob->particlesystem.first; psys; psys=psys->next) {
Hair dynamics with cloth simulation - Hair dynamics have their own panel in particle settings with the settings from cloth panel that apply to hair. - Basic internal friction force to quickly emulate self collisions and volume preservation. (Still very early code, but gives some idea of what's possible). - Softbody simulation is no longer used for hair. * Old files with sb dynamics should just load the hair without dynamics so new dynamics can be applied. * Invasion of particles exceptions in sb code is finally over. - Collisions with other objects are disabled for now and will be worked out in the future. Other changes/fixes: - Particle mode editing flag wasn't saved properly. - Some old files with edited hair didn't load correctly. - Disabled delete & specials menu in particle mode for non-hair editing. - Fixed yet one more cloth & softbody pointcache update issue. - Disconnect/connect hair now uses only the deformed mesh so it works correctly also for subsurfed emitters. - Hair editing now updates correctly with a moving emitter.
2009-09-10 22:32:33 +00:00
/* Baked cloth hair has to be checked first, because we don't want to reset */
/* particles or cloth in that case -jahka */
if(psys->clmd) {
BKE_ptcache_id_from_cloth(&pid, ob, psys->clmd);
Fix for bug [#13479] Particle system "corrupts" when changing material colour and used in conjunction with softbodies - changing particlesystem settings for hair particles cleared & recalculated everything even when hair softbody was baked
2008-07-11 23:47:44 +00:00
if(mode == PSYS_RESET_ALL || !(psys->part->type == PART_HAIR && (pid.cache->flag & PTCACHE_BAKED)))
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
reset |= BKE_ptcache_id_reset(scene, &pid, mode);
Fix for bug [#13479] Particle system "corrupts" when changing material colour and used in conjunction with softbodies - changing particlesystem settings for hair particles cleared & recalculated everything even when hair softbody was baked
2008-07-11 23:47:44 +00:00
else
skip = 1;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
else if(psys->recalc & PSYS_RECALC_REDO || psys->recalc & PSYS_RECALC_CHILD)
First new particle code: -Many things not yet working properly :) -Experimental new (hopefully more logical) categorization of buttons, feedback on this is very welcome. -Separate render & draw types, for example now there is actually a render option "halo" instead of all the different point draw types. -Particles get recalculated only from buttons that actually change something that has to be recalculated, for example changing visualization doesn't reset particles any more. -Boid physics buttons are still missing as I'm currently redoing the whole boids code. -Point caching is still very wip, so baking is not possible for example, but I added a few cache baking flags for rna that were/will be needed for particle buttons logic.
2009-06-05 23:59:33 +00:00
skip = 1;
Fix for bug [#13479] Particle system "corrupts" when changing material colour and used in conjunction with softbodies - changing particlesystem settings for hair particles cleared & recalculated everything even when hair softbody was baked
2008-07-11 23:47:44 +00:00
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
if(skip == 0 && psys->part) {
Fix for bug [#13479] Particle system "corrupts" when changing material colour and used in conjunction with softbodies - changing particlesystem settings for hair particles cleared & recalculated everything even when hair softbody was baked
2008-07-11 23:47:44 +00:00
BKE_ptcache_id_from_particles(&pid, ob, psys);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
reset |= BKE_ptcache_id_reset(scene, &pid, mode);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
}
for(md=ob->modifiers.first; md; md=md->next) {
if(md->type == eModifierType_Cloth) {
BKE_ptcache_id_from_cloth(&pid, ob, (ClothModifierData*)md);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
reset |= BKE_ptcache_id_reset(scene, &pid, mode);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
if(md->type == eModifierType_Smoke) {
SmokeModifierData *smd = (SmokeModifierData *)md;
if(smd->type & MOD_SMOKE_TYPE_DOMAIN)
{
Smoke: * cache for low res (deactivating high res for now) * new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern) * introducing LZO and LZMA libs into extern (makefiles missing for now) * reducing memory usage after simulating for the frame ended (freeing temporary buffers) * splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index) * no color on gui anymore * fixing non-power-of-2 resolutions (hopefully) * fixing select-deselect of domain drawing bug * fixing drawobject.c coding style (making Ton happy) ;-) HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too) CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown! WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that. WARNING #2: File and cache format of smoke can be changed, this is not final!
2009-08-20 00:33:59 +00:00
BKE_ptcache_id_from_smoke(&pid, ob, (SmokeModifierData*)md);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
reset |= BKE_ptcache_id_reset(scene, &pid, mode);
Smoke: * Enable cache for high res + new preview * Bugfix for smoke banding (in cooperation with N_T) Hint: Work-in-progress regarding collision objects so can be broken, didn't test Hint2: jahka enabled a general particle panel but * bake button doesn't work * step is not supported for cloth * several other things there ;)
2009-09-09 18:39:40 +00:00
BKE_ptcache_id_from_smoke_turbulence(&pid, ob, (SmokeModifierData*)md);
reset |= BKE_ptcache_id_reset(scene, &pid, mode);
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
}
}
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
Merge of itasc branch. Project files, scons and cmake should be working. Makefile updated but not tested. Comes with Eigen2 2.0.6 C++ matrix library.
2009-09-24 21:22:24 +00:00
if (ob->type == OB_ARMATURE)
BIK_clear_cache(ob->pose);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
return reset;
}
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
/* Use this when quitting blender, with unsaved files */
void BKE_ptcache_remove(void)
{
Fix for part of bug #17759: point cache clearing did too much, also clearing other physics systems on the same object.
2008-10-04 21:26:48 +00:00
char path[MAX_PTCACHE_PATH];
char path_full[MAX_PTCACHE_PATH];
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
int rmdir = 1;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
ptcache_path(NULL, path);
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
Fix for bug #8930: issue removing temporary pointcache directory on windows.
2008-04-12 12:56:49 +00:00
if (BLI_exist(path)) {
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
/* The pointcache dir exists? - remove all pointcache */
DIR *dir;
struct dirent *de;
Fix for bug #8930: issue removing temporary pointcache directory on windows.
2008-04-12 12:56:49 +00:00
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
dir = opendir(path);
if (dir==NULL)
return;
while ((de = readdir(dir)) != NULL) {
if( strcmp(de->d_name, ".")==0 || strcmp(de->d_name, "..")==0) {
/* do nothing */
} else if (strstr(de->d_name, PTCACHE_EXT)) { /* do we have the right extension?*/
BLI_join_dirfile(path_full, path, de->d_name);
BLI_delete(path_full, 0, 0);
} else {
rmdir = 0; /* unknown file, dont remove the dir */
}
}
Fix for bug #8930: issue removing temporary pointcache directory on windows.
2008-04-12 12:56:49 +00:00
closedir(dir);
* Made BLI_join_dirfile() check before adding a slash between dir and file so as not to get /foo///bar.blend * Pointcache now uses the process id to construct the path for unsaved files. (so 2 or more blender's open wont try to read/write the same pointcache) * Temp pointcache is cleared when existing blender, added BIF_clear_tempfiles() for this. Should also be usedto clear EXR's in the temp dir (TODO), BIF_clear_tempfiles also needs to be added in more places. (On file load for instace)
2008-02-29 15:50:28 +00:00
} else {
rmdir = 0; /* path dosnt exist */
}
if (rmdir) {
BLI_delete(path, 1, 0);
}
}
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
/* Continuous Interaction */
static int CONTINUE_PHYSICS = 0;
2.5 Think global, act local! The old favorite G.scene gone! Man... that took almost 2 days. Also removed G.curscreen and G.edbo. Not everything could get solved; here's some notes. - modifiers now store current scene in ModifierData. This is not meant for permanent, but it can probably stick there until we cleaned the anim system and depsgraph to cope better with timing issues. - Game engine G.scene should become an argument for staring it. Didn't solve this yet. - Texture nodes should get scene cfra, but the current implementation is too tightly wrapped to do it easily.
2009-01-04 14:14:06 +00:00
void BKE_ptcache_set_continue_physics(Scene *scene, int enable)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
Object *ob;
if(CONTINUE_PHYSICS != enable) {
CONTINUE_PHYSICS = enable;
if(CONTINUE_PHYSICS == 0) {
for(ob=G.main->object.first; ob; ob=ob->id.next)
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
if(BKE_ptcache_object_reset(scene, ob, PTCACHE_RESET_OUTDATED))
2.5 Notifiers --------- Various fixes for wrong use of notifiers, and some new notifiers to make things a bit more clear and consistent, with two notable changes: * Geometry changes are now done with NC_GEOM, rather than NC_OBJECT|ND_GEOM_, so an object does need to be available. * Space data now use NC_SPACE|ND_SPACE_*, instead of data notifiers or even NC_WINDOW in some cases. Note that NC_SPACE should only be used for notifying about changes in space data, we don't want to go back to allqueue(REDRAW..). Depsgraph --------- The dependency graph now has a different flush call: DAG_object_flush_update(scene, ob, flag) is replaced by: DAG_id_flush_update(id, flag) It still works basically the same, one difference is that it now also accepts object data (e.g. Mesh), again to avoid requiring an Object to be available. Other ID types will simply do nothing at the moment. Docs ---- I made some guidelines for how/when to do which kinds of updates and notifiers. I can't specify totally exact how to make these decisions, but these are basically the guidelines I use. So, new and updated docs are here: http://wiki.blender.org/index.php/BlenderDev/Blender2.5/NotifiersUpdates http://wiki.blender.org/index.php/BlenderDev/Blender2.5/DataNotifiers
2009-09-04 20:51:09 +00:00
DAG_id_flush_update(&ob->id, OB_RECALC_DATA);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
}
}
}
int BKE_ptcache_get_continue_physics()
{
return CONTINUE_PHYSICS;
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* Point Cache handling */
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
PointCache *BKE_ptcache_add(ListBase *ptcaches)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
PointCache *cache;
cache= MEM_callocN(sizeof(PointCache), "PointCache");
cache->startframe= 1;
cache->endframe= 250;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
cache->step= 10;
Pointcache: *introducing unique ID's following brechts hint from ML Enhancements resulting from this: * multiple caches per modifier stack position
2009-08-25 18:41:36 +00:00
cache->index = -1;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
BLI_addtail(ptcaches, cache);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
return cache;
}
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
void BKE_ptcache_free_mem(ListBase *mem_cache)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
PTCacheMem *pm = mem_cache->first;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
if(pm) {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(; pm; pm=pm->next) {
ptcache_free_data(pm->data);
if(pm->index_array)
MEM_freeN(pm->index_array);
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BLI_freelistN(mem_cache);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
void BKE_ptcache_free(PointCache *cache)
{
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_free_mem(&cache->mem_cache);
if(cache->edit && cache->free_edit)
cache->free_edit(cache->edit);
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
MEM_freeN(cache);
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
void BKE_ptcache_free_list(ListBase *ptcaches)
{
PointCache *cache = ptcaches->first;
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
while(cache) {
BLI_remlink(ptcaches, cache);
BKE_ptcache_free(cache);
cache = ptcaches->first;
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
Proper copy code for multiple point caches.
2009-08-14 16:25:59 +00:00
static PointCache *ptcache_copy(PointCache *cache)
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
{
PointCache *ncache;
ncache= MEM_dupallocN(cache);
Keyed physics refresh: - Keyed targets in one list instead of "chaining", this opens up many more possibilities than before and is much less obscure. - Better keyed timing possibilities (time & duration in frames). - Looping over keyed targets list. Other changes: - New child setting "length" with threshold (great for guard & underfur with a single particle system) - Modularization of path interpolation code. - Cleared "animateable" flags from many particle settings that shouldn't be animateable. Fixes: - Keyed particles weren't copied properly (ancient bug). - Hair rotations depended on global z-axis for root rotation so downward facing strands could flip rotation randomly. Now initial hair rotation is derived from face dependent hair matrix. (This caused for example ugly flipping of child strands on some cases). - Children from faces weren't calculated straight after activating them. - Multiple disk cache fixes: * Disk cache didn't work correctly with frame steps. * Conversion from memory cache to disk cache didn't work with cloth. * Disk cache crashed on some frames trying to close an already closed cache file. * Trails didn't work with disk cached particles. - Child rough effects were effected by emitter object loc/rot making them next to useless with animation, why didn't anybody tell me this!! - Lots of random code cleanup.
2009-07-12 23:38:47 +00:00
/* hmm, should these be copied over instead? */
ncache->mem_cache.first = NULL;
ncache->mem_cache.last = NULL;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
ncache->flag= 0;
ncache->simframe= 0;
return ncache;
}
Proper copy code for multiple point caches.
2009-08-14 16:25:59 +00:00
/* returns first point cache */
PointCache *BKE_ptcache_copy_list(ListBase *ptcaches_new, ListBase *ptcaches_old)
{
PointCache *cache = ptcaches_old->first;
ptcaches_new->first = ptcaches_new->last = NULL;
Point Cache Refactoring ======================= Caching and Baking: - The point cache is now cleared on DAG_object_flush_update(), and not cleared for time dependency graph updates. - There is now a Bake button instead of Protect. Also cache start and end frames were added to softbody and particles. - The cloth autoprotect feature was removed. - The Ctrl+B menu now also bakes cloth and particles next to softbody and fluids. Additionally there are now frree bake and free cache menu entries. - The point cache api has been changed. There is now a PTCacheID struct for each point cache type that can be filled and then used to call the point cache functions. - PointCache struct was added to DNA and is automatically allocated for each physics type. - Soft body now supports Bake Editing just like cloth. - Tried to make the systems deal consistently with time ipo's and offsets. Still not sure it all works correct, but too complicated to solve completely now. Library Linking: - Added some more warnings to prevent editing settings on library linked objects. - Linked objects now read from the cache located next to the original library file, and never write to it. This restores old behavior for softbodies. For local simulation the mesh and not the object should be linked. - Dupligroups and proxies can't create local point caches at the moment, how to implement that I'm not sure. We probably need a proxy point cache for that to work (ugh). Physics UI: - Renamed deflection panel to collision for consistency and reorganized the buttons. Also removed some softbody collision buttons from the softbody panel that were duplicated in this panel for cloth. - Tweaked field panel buttons to not jump around when changing options. - Tabbing e.g. Soft Body Collision into the Soft Body panel, it now only shows Collision to make the panel names readable. - I tried to make enabled/disabling physics more consistent, since all three system did things different. Now the two modifier buttons to enable the modifier for the viewport and rendering are also duplicated in the physics panels. Toggling the Soft Body and Cloth buttons now both remove their modifiers. - Fixed modifier error drawing glitch. Particles: - Particles are now recalculated more often than before. Previously it did partial updates based on the changes, but that doesn't work well with DAG_object_flush_update() .. - Fixed memory leak loading keyed particle system. Now keys are not written to file anymore but always created after loading. - Make particle threads work with autothreads. Continue Physics: - The timeline play now has a Continue Physics option in the playback menu, which keeps the simulations going without writing them to the cache. - This doesn't always work that well, some changes are not immediately updated, but this can be improved later. Still it's fun to get a feel for the physics. Todo: - Point cache can get out of sync with and undo and changing a file without saving it. - Change the point cache file format to store a version (so old point cache files can be either converted or at least ignored), and to do correct endian conversion. - Menu item and/or buttons for Ctrl+B. - A system("rm ..") was changed to remove() since the former is very slow for clearing point caches. These system() calls were already giving trouble in a bug in the tracker, but really most use of this system("") should be changed and tested. - The Soft Body Collision and Clot Collision panel titles don't mention there's point cache settings there too, doing that makes them unreadable with the default panel setup.. but may need to make the names longer anyway.
2008-04-10 11:39:20 +00:00
Proper copy code for multiple point caches.
2009-08-14 16:25:59 +00:00
for(; cache; cache=cache->next)
BLI_addtail(ptcaches_new, ptcache_copy(cache));
return ptcaches_new->first;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
/* Baking */
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
static int count_quick_cache(Scene *scene, int *quick_step)
{
Base *base = scene->base.first;
PTCacheID *pid;
ListBase pidlist;
int autocache_count= 0;
for(base = scene->base.first; base; base = base->next) {
if(base->object) {
BKE_ptcache_ids_from_object(&pidlist, base->object);
for(pid=pidlist.first; pid; pid=pid->next) {
if((pid->cache->flag & PTCACHE_BAKED)
|| (pid->cache->flag & PTCACHE_QUICK_CACHE)==0)
continue;
if(pid->cache->flag & PTCACHE_OUTDATED || (pid->cache->flag & PTCACHE_SIMULATION_VALID)==0) {
if(!autocache_count)
*quick_step = pid->cache->step;
else
*quick_step = MIN2(*quick_step, pid->cache->step);
autocache_count++;
}
}
BLI_freelistN(&pidlist);
}
}
return autocache_count;
}
void BKE_ptcache_quick_cache_all(Scene *scene)
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
{
PTCacheBaker baker;
baker.bake=0;
baker.break_data=NULL;
baker.break_test=NULL;
baker.pid=NULL;
baker.progressbar=NULL;
baker.progresscontext=NULL;
baker.render=0;
Rendering animations with particle trails cached.
2009-07-04 12:09:21 +00:00
baker.anim_init = 0;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
baker.scene=scene;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if(count_quick_cache(scene, &baker.quick_step))
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
BKE_ptcache_make_cache(&baker);
}
/* if bake is not given run simulations to current frame */
void BKE_ptcache_make_cache(PTCacheBaker* baker)
{
Scene *scene = baker->scene;
Base *base;
ListBase pidlist;
PTCacheID *pid = baker->pid;
2.5 - Warning cleanups (for mingw+scons) Also, made the Outliner's horizontal scrollbar work better for keymaps view. It's still using an approximation of the width, but at least you can scroll now.
2009-08-26 00:38:43 +00:00
PointCache *cache = NULL;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
float frameleno = scene->r.framelen;
int cfrao = CFRA;
int startframe = MAXFRAME;
Rendering animations with particle trails cached.
2009-07-04 12:09:21 +00:00
int endframe = baker->anim_init ? scene->r.sfra : CFRA;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
int bake = baker->bake;
int render = baker->render;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
int step = baker->quick_step;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
G.afbreek = 0;
/* set caches to baking mode and figure out start frame */
if(pid) {
/* cache/bake a single object */
cache = pid->cache;
if((cache->flag & PTCACHE_BAKED)==0) {
if(pid->type==PTCACHE_TYPE_PARTICLES)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
psys_get_pointcache_start_end(scene, pid->calldata, &cache->startframe, &cache->endframe);
Smoke: * This should make low res bake too if high res gets baked
2009-09-15 16:05:59 +00:00
else if(pid->type == PTCACHE_TYPE_SMOKE_HIGHRES) {
/* get all pids from the object and search for smoke low res */
ListBase pidlist2;
PTCacheID *pid2;
BKE_ptcache_ids_from_object(&pidlist2, pid->ob);
for(pid2=pidlist2.first; pid2; pid2=pid2->next) {
if(pid2->type == PTCACHE_TYPE_SMOKE_DOMAIN)
{
if(pid2->cache && !(pid2->cache->flag & PTCACHE_BAKED)) {
if(bake || pid2->cache->flag & PTCACHE_REDO_NEEDED)
BKE_ptcache_id_clear(pid2, PTCACHE_CLEAR_ALL, 0);
if(bake) {
pid2->cache->flag |= PTCACHE_BAKING;
pid2->cache->flag &= ~PTCACHE_BAKED;
}
}
}
}
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if(bake || cache->flag & PTCACHE_REDO_NEEDED)
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, 0);
startframe = MAX2(cache->last_exact, cache->startframe);
if(bake) {
endframe = cache->endframe;
cache->flag |= PTCACHE_BAKING;
}
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
else {
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
endframe = MIN2(endframe, cache->endframe);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
cache->flag &= ~PTCACHE_BAKED;
}
}
else for(base=scene->base.first; base; base= base->next) {
/* cache/bake everything in the scene */
BKE_ptcache_ids_from_object(&pidlist, base->object);
for(pid=pidlist.first; pid; pid=pid->next) {
cache = pid->cache;
if((cache->flag & PTCACHE_BAKED)==0) {
A bunch of fun stuff now possible because of new pointcache code: * Baked normal particles can now use the "Path" visualization. * Path "max length" & "abs length" are now history: - New option to set path start & end times + random variation to length. - Much more flexible (and calculated better) than previous options. - This works with parents, children, hair & normal particles unlike old length option. - Only known issue for now is that children from faces don't get calculated correctly when using path start time. * New option "trails" for "halo", "line" and "billboard" visualizations: - Draws user controllable number of particle instances along particles path backwards from current position. - Works with children too for cool/weird visualizations that weren't possible before. * Normal particle children's velocities are now approximated better when needed so that "line" visualization trails will look nice. * New particle instance modifier options: - "path"-option works better and has controllable (max)position along path (with random variation possible). - "keep shape"-option for hair, keyed, or baked particles allows to place the instances to a single point (with random variation possible) along particle path. - "axis" option to make rotation handling better (still not perfect, but will have to do for now). Some fixes & cleanup done along the way: * Random path length didn't work for non-child particles. * Cached & unborn particles weren't reset to emit locations. * Particle numbers weren't drawn in the correct place. * Setting proper render & draw visualizations was lost somewhere when initializing new particle settings. * Changing child mode wasn't working correctly. * Some cleanup & modularization of particle child effector code and particle drawing & rendering code. * Object & group visualizations didn't work. * Child simplification didn't work.
2009-07-04 03:50:12 +00:00
if(pid->type==PTCACHE_TYPE_PARTICLES) {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ParticleSystem *psys = (ParticleSystem*)pid->calldata;
Keyed physics refresh: - Keyed targets in one list instead of "chaining", this opens up many more possibilities than before and is much less obscure. - Better keyed timing possibilities (time & duration in frames). - Looping over keyed targets list. Other changes: - New child setting "length" with threshold (great for guard & underfur with a single particle system) - Modularization of path interpolation code. - Cleared "animateable" flags from many particle settings that shouldn't be animateable. Fixes: - Keyed particles weren't copied properly (ancient bug). - Hair rotations depended on global z-axis for root rotation so downward facing strands could flip rotation randomly. Now initial hair rotation is derived from face dependent hair matrix. (This caused for example ugly flipping of child strands on some cases). - Children from faces weren't calculated straight after activating them. - Multiple disk cache fixes: * Disk cache didn't work correctly with frame steps. * Conversion from memory cache to disk cache didn't work with cloth. * Disk cache crashed on some frames trying to close an already closed cache file. * Trails didn't work with disk cached particles. - Child rough effects were effected by emitter object loc/rot making them next to useless with animation, why didn't anybody tell me this!! - Lots of random code cleanup.
2009-07-12 23:38:47 +00:00
/* skip hair & keyed particles */
if(psys->part->type == PART_HAIR || psys->part->phystype == PART_PHYS_KEYED)
A bunch of fun stuff now possible because of new pointcache code: * Baked normal particles can now use the "Path" visualization. * Path "max length" & "abs length" are now history: - New option to set path start & end times + random variation to length. - Much more flexible (and calculated better) than previous options. - This works with parents, children, hair & normal particles unlike old length option. - Only known issue for now is that children from faces don't get calculated correctly when using path start time. * New option "trails" for "halo", "line" and "billboard" visualizations: - Draws user controllable number of particle instances along particles path backwards from current position. - Works with children too for cool/weird visualizations that weren't possible before. * Normal particle children's velocities are now approximated better when needed so that "line" visualization trails will look nice. * New particle instance modifier options: - "path"-option works better and has controllable (max)position along path (with random variation possible). - "keep shape"-option for hair, keyed, or baked particles allows to place the instances to a single point (with random variation possible) along particle path. - "axis" option to make rotation handling better (still not perfect, but will have to do for now). Some fixes & cleanup done along the way: * Random path length didn't work for non-child particles. * Cached & unborn particles weren't reset to emit locations. * Particle numbers weren't drawn in the correct place. * Setting proper render & draw visualizations was lost somewhere when initializing new particle settings. * Changing child mode wasn't working correctly. * Some cleanup & modularization of particle child effector code and particle drawing & rendering code. * Object & group visualizations didn't work. * Child simplification didn't work.
2009-07-04 03:50:12 +00:00
continue;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
psys_get_pointcache_start_end(scene, pid->calldata, &cache->startframe, &cache->endframe);
A bunch of fun stuff now possible because of new pointcache code: * Baked normal particles can now use the "Path" visualization. * Path "max length" & "abs length" are now history: - New option to set path start & end times + random variation to length. - Much more flexible (and calculated better) than previous options. - This works with parents, children, hair & normal particles unlike old length option. - Only known issue for now is that children from faces don't get calculated correctly when using path start time. * New option "trails" for "halo", "line" and "billboard" visualizations: - Draws user controllable number of particle instances along particles path backwards from current position. - Works with children too for cool/weird visualizations that weren't possible before. * Normal particle children's velocities are now approximated better when needed so that "line" visualization trails will look nice. * New particle instance modifier options: - "path"-option works better and has controllable (max)position along path (with random variation possible). - "keep shape"-option for hair, keyed, or baked particles allows to place the instances to a single point (with random variation possible) along particle path. - "axis" option to make rotation handling better (still not perfect, but will have to do for now). Some fixes & cleanup done along the way: * Random path length didn't work for non-child particles. * Cached & unborn particles weren't reset to emit locations. * Particle numbers weren't drawn in the correct place. * Setting proper render & draw visualizations was lost somewhere when initializing new particle settings. * Changing child mode wasn't working correctly. * Some cleanup & modularization of particle child effector code and particle drawing & rendering code. * Object & group visualizations didn't work. * Child simplification didn't work.
2009-07-04 03:50:12 +00:00
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if((cache->flag & PTCACHE_REDO_NEEDED || (cache->flag & PTCACHE_SIMULATION_VALID)==0)
&& ((cache->flag & PTCACHE_QUICK_CACHE)==0 || render || bake))
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, 0);
startframe = MIN2(startframe, cache->startframe);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if(bake || render) {
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
cache->flag |= PTCACHE_BAKING;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
if(bake)
endframe = MAX2(endframe, cache->endframe);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
cache->flag &= ~PTCACHE_BAKED;
}
}
BLI_freelistN(&pidlist);
}
CFRA= startframe;
scene->r.framelen = 1.0;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
for(; CFRA <= endframe; CFRA+=step) {
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int prog;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
if(bake)
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
prog = (int)(100.0f * (float)(CFRA - startframe)/(float)(endframe-startframe));
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
else
prog = CFRA;
/* NOTE: baking should not redraw whole ui as this slows things down */
if(baker->progressbar)
baker->progressbar(baker->progresscontext, prog);
scene_update_for_newframe(scene, scene->lay);
/* NOTE: breaking baking should leave calculated frames in cache, not clear it */
if(baker->break_test && baker->break_test(baker->break_data))
break;
}
/* clear baking flag */
if(pid) {
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
cache->flag &= ~(PTCACHE_BAKING|PTCACHE_REDO_NEEDED);
cache->flag |= PTCACHE_SIMULATION_VALID;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(bake) {
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
cache->flag |= PTCACHE_BAKED;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* write info file */
if(cache->flag & PTCACHE_DISK_CACHE)
BKE_ptcache_write_cache(pid, 0);
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
else for(base=scene->base.first; base; base= base->next) {
BKE_ptcache_ids_from_object(&pidlist, base->object);
for(pid=pidlist.first; pid; pid=pid->next) {
A bunch of fun stuff now possible because of new pointcache code: * Baked normal particles can now use the "Path" visualization. * Path "max length" & "abs length" are now history: - New option to set path start & end times + random variation to length. - Much more flexible (and calculated better) than previous options. - This works with parents, children, hair & normal particles unlike old length option. - Only known issue for now is that children from faces don't get calculated correctly when using path start time. * New option "trails" for "halo", "line" and "billboard" visualizations: - Draws user controllable number of particle instances along particles path backwards from current position. - Works with children too for cool/weird visualizations that weren't possible before. * Normal particle children's velocities are now approximated better when needed so that "line" visualization trails will look nice. * New particle instance modifier options: - "path"-option works better and has controllable (max)position along path (with random variation possible). - "keep shape"-option for hair, keyed, or baked particles allows to place the instances to a single point (with random variation possible) along particle path. - "axis" option to make rotation handling better (still not perfect, but will have to do for now). Some fixes & cleanup done along the way: * Random path length didn't work for non-child particles. * Cached & unborn particles weren't reset to emit locations. * Particle numbers weren't drawn in the correct place. * Setting proper render & draw visualizations was lost somewhere when initializing new particle settings. * Changing child mode wasn't working correctly. * Some cleanup & modularization of particle child effector code and particle drawing & rendering code. * Object & group visualizations didn't work. * Child simplification didn't work.
2009-07-04 03:50:12 +00:00
/* skip hair particles */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pid->type==PTCACHE_TYPE_PARTICLES && ((ParticleSystem*)pid->calldata)->part->type == PART_HAIR)
A bunch of fun stuff now possible because of new pointcache code: * Baked normal particles can now use the "Path" visualization. * Path "max length" & "abs length" are now history: - New option to set path start & end times + random variation to length. - Much more flexible (and calculated better) than previous options. - This works with parents, children, hair & normal particles unlike old length option. - Only known issue for now is that children from faces don't get calculated correctly when using path start time. * New option "trails" for "halo", "line" and "billboard" visualizations: - Draws user controllable number of particle instances along particles path backwards from current position. - Works with children too for cool/weird visualizations that weren't possible before. * Normal particle children's velocities are now approximated better when needed so that "line" visualization trails will look nice. * New particle instance modifier options: - "path"-option works better and has controllable (max)position along path (with random variation possible). - "keep shape"-option for hair, keyed, or baked particles allows to place the instances to a single point (with random variation possible) along particle path. - "axis" option to make rotation handling better (still not perfect, but will have to do for now). Some fixes & cleanup done along the way: * Random path length didn't work for non-child particles. * Cached & unborn particles weren't reset to emit locations. * Particle numbers weren't drawn in the correct place. * Setting proper render & draw visualizations was lost somewhere when initializing new particle settings. * Changing child mode wasn't working correctly. * Some cleanup & modularization of particle child effector code and particle drawing & rendering code. * Object & group visualizations didn't work. * Child simplification didn't work.
2009-07-04 03:50:12 +00:00
continue;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
cache = pid->cache;
if(step > 1)
cache->flag &= ~(PTCACHE_BAKING|PTCACHE_OUTDATED);
else
cache->flag &= ~(PTCACHE_BAKING|PTCACHE_REDO_NEEDED);
cache->flag |= PTCACHE_SIMULATION_VALID;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(bake) {
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
cache->flag |= PTCACHE_BAKED;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(cache->flag & PTCACHE_DISK_CACHE)
BKE_ptcache_write_cache(pid, 0);
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
BLI_freelistN(&pidlist);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
scene->r.framelen = frameleno;
CFRA = cfrao;
A bunch of fun stuff now possible because of new pointcache code: * Baked normal particles can now use the "Path" visualization. * Path "max length" & "abs length" are now history: - New option to set path start & end times + random variation to length. - Much more flexible (and calculated better) than previous options. - This works with parents, children, hair & normal particles unlike old length option. - Only known issue for now is that children from faces don't get calculated correctly when using path start time. * New option "trails" for "halo", "line" and "billboard" visualizations: - Draws user controllable number of particle instances along particles path backwards from current position. - Works with children too for cool/weird visualizations that weren't possible before. * Normal particle children's velocities are now approximated better when needed so that "line" visualization trails will look nice. * New particle instance modifier options: - "path"-option works better and has controllable (max)position along path (with random variation possible). - "keep shape"-option for hair, keyed, or baked particles allows to place the instances to a single point (with random variation possible) along particle path. - "axis" option to make rotation handling better (still not perfect, but will have to do for now). Some fixes & cleanup done along the way: * Random path length didn't work for non-child particles. * Cached & unborn particles weren't reset to emit locations. * Particle numbers weren't drawn in the correct place. * Setting proper render & draw visualizations was lost somewhere when initializing new particle settings. * Changing child mode wasn't working correctly. * Some cleanup & modularization of particle child effector code and particle drawing & rendering code. * Object & group visualizations didn't work. * Child simplification didn't work.
2009-07-04 03:50:12 +00:00
if(bake) /* already on cfra unless baking */
scene_update_for_newframe(scene, scene->lay);
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
/* TODO: call redraw all windows somehow */
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* Helpers */
void BKE_ptcache_disk_to_mem(PTCacheID *pid)
{
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
PointCache *cache = pid->cache;
PTCacheFile *pf;
PTCacheMem *pm;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int cfra, sfra = cache->startframe, efra = cache->endframe;
int i;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, 0);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(cfra=sfra; cfra <= efra; cfra++) {
pf = ptcache_file_open(pid, PTCACHE_FILE_READ, cfra);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pf) {
if(!ptcache_file_read_header_begin(pf)) {
printf("Can't yet convert old cache format\n");
cache->flag |= PTCACHE_DISK_CACHE;
ptcache_file_close(pf);
return;
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pf->type != pid->type || !pid->read_header(pf)) {
cache->flag |= PTCACHE_DISK_CACHE;
ptcache_file_close(pf);
return;
}
pm = MEM_callocN(sizeof(PTCacheMem), "Pointcache mem");
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pm->totpoint = pf->totpoint;
pm->data_types = pf->data_types;
pm->frame = cfra;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_alloc_data(pm);
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_init_pointers(pm);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_file_init_pointers(pf);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(i=0; i<pm->totpoint; i++) {
if(!ptcache_file_read_data(pf)) {
printf("Error reading from disk cache\n");
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
cache->flag |= PTCACHE_DISK_CACHE;
ptcache_free_data(pm->data);
MEM_freeN(pm);
ptcache_file_close(pf);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
return;
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_copy_data(pf->cur, pm->cur);
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_incr_pointers(pm);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
//ptcache_make_index_array(pm, pid->totpoint(pid->calldata));
BLI_addtail(&pid->cache->mem_cache, pm);
ptcache_file_close(pf);
}
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
}
void BKE_ptcache_mem_to_disk(PTCacheID *pid)
{
PointCache *cache = pid->cache;
PTCacheFile *pf;
PTCacheMem *pm;
int i;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
pm = cache->mem_cache.first;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, 0);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
for(; pm; pm=pm->next) {
pf = ptcache_file_open(pid, PTCACHE_FILE_WRITE, pm->frame);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(pf) {
pf->data_types = pm->data_types;
pf->totpoint = pm->totpoint;
pf->type = pid->type;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_init_pointers(pm);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_file_init_pointers(pf);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(!ptcache_file_write_header_begin(pf) || !pid->write_header(pf)) {
printf("Error writing to disk cache\n");
cache->flag &= ~PTCACHE_DISK_CACHE;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_file_close(pf);
return;
}
for(i=0; i<pm->totpoint; i++) {
ptcache_copy_data(pm->cur, pf->cur);
if(!ptcache_file_write_data(pf)) {
printf("Error writing to disk cache\n");
cache->flag &= ~PTCACHE_DISK_CACHE;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_file_close(pf);
return;
}
Point cache editing: - Baked point caches for particles, cloth and softbody can now be edited in particle mode. * This overwrites the old cloth/sb cache editmode editing. * The type of editable system is chosen from a menu. * For particles the current particle system and it's current cache are used. - Currently this only works for caches that are in memory, but some automatic conversion from disk to memory and back can be implemented later. - All tools from hair editing can't be applied to point caches and are hidden in the tool panel and specials menu. Some functionality like subdividing paths can be later implemented in a slightly different way from how it works for hair. - Code is not yet optimized for speed, so editing might be slow sometimes. Known issues: - Cloth doesn't update properly while in particle mode, due to the way cloth modifier currently works. Daniel can you check on this? - As "particle mode" is not only for particles any more some other name would be in place? - Better icons are needed for the path, point, and tip-modes as the current icons from mesh edit mode are quite misleading. - Direct editing of point velocities is not yet implemented, but will be in the future. Other changes: - Hair editing doesn't require a "make editable" button press any more. - Multiple caches in single particle system disables changing emission properties. - Unified ui code for all point cache panels. * Defined in buttons_particle.py and imported for cloth, smoke & softbody. - Proper disabling of properties in ui after baking point caches. (Daniel could you please make needed disable code for smoke panels as their functionality is not familiar to me.) - Hair weight brush has been removed. Once hair dynamics is re-implemented I'll code a more useable alternative to the functionality. Bug fixes: - Unlinking particle settings crashed. - Deleting the active object with particles in the scene crashed. - Softbody didn't write point caches correctly on save.
2009-08-29 15:20:36 +00:00
BKE_ptcache_mem_incr_pointers(pm);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
ptcache_file_close(pf);
/* write info file */
if(cache->flag & PTCACHE_BAKED)
BKE_ptcache_write_cache(pid, 0);
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
else
printf("Error creating disk cache file\n");
}
}
void BKE_ptcache_toggle_disk_cache(PTCacheID *pid)
{
PointCache *cache = pid->cache;
int last_exact = cache->last_exact;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if (!G.relbase_valid){
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
cache->flag &= ~PTCACHE_DISK_CACHE;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
printf("File must be saved before using disk cache!\n");
return;
Pointcache refresh part 1: * Particles support larger than 1 frame changes, bigger frame changes can result in inaccurate results, but it's super fast and you get a nice feeling of how the particles behave! * "Cache to current frame" button calculates the exact result of particles at current frame. * Current state of cache can be protected by making it a bake. * Cache is now in memory by default, disk cache is an option. * Only "viewport %" number of particles are calculated and cached in viewport, baking and rendering calculate all particles. * Info on cached frames and memory usage given in ui. * Support for exact "autocaching" of changes and large frame changes(disabled for now until exact place in event system is decided) * "Continue physics" is probably deprecated after this and should be removed once sb & cloth use the new cache code. Todo: * Make softbody & cloth use the new cache things. Other changes: * Some cleanup of particle buttons.
2009-06-21 10:16:52 +00:00
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(cache->flag & PTCACHE_DISK_CACHE)
BKE_ptcache_mem_to_disk(pid);
else
BKE_ptcache_disk_to_mem(pid);
cache->flag ^= PTCACHE_DISK_CACHE;
BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, 0);
cache->flag ^= PTCACHE_DISK_CACHE;
Pointcache refresh part 2 * Based on what happens during simulation the cache is marked (also in cache panel, this could possibly be extended to 3d view as well) as: - exact (not marked) - outdated (simulation is not done completely with current settings) - non-exact (frames were skipped during simulation) * The parameter "cache step" effects the number of frames between saved cache frames. - This can save a lot of memory (or disk space) if absolutely frame accurate simulation is not required. - Speeds up the "quick caching" very much. - Frames between cached frames are interpolated from the cached frames. - Current default value of 10 frames works nicely with up/down-arrows (skip 10 frames forwards/backwards on timeline), but can be changed if wanted. * The caching can work in normal or "quick" mode: [Normal cache] - Basic: Calculate what even happens (settings change, big frame steps etc.) and cache results, if possible try to use "cache step" when saving cache frames. - Becomes non-exact: After larger than 1 frame steps. - Becomes outdated: After any change effecting the simulation other than frame steps. - Pros/cons: Freedom of doing anything and playing with particles, but exact results have to calculated from the beginning. [Quick cache] - Basic: Calculate simulation up to current frame automatically on changes with cache step sized jumps in simulation. With multiple "quick cached" simulations the smallest cache step is used. - Becomes non-exact: Always from frame 1 (unless cache step = 1). - Becomes outdated: Never. - Pros/cons: Not very accurate, but super fast! - Todo: Transform of any animated (non-autokeyed) object is locked! Probably needs some tinkering with anim sys overrides. * The simulation can be run forwards or backwards even if it's cache is outdated or non-exact, the following rules apply in these situations: - step forwards (to unknown) -> simulate from last exact frame, store result - step backwards (to known) -> result is interpolated from existing frames, store result, clear cache forwards if current frame is after last exact frame * "Calculate to current frame" runs the simulation from start to current frame with a frame steps of 1. - Baking does the same, but runs the simulation all the way to the end of simulation. - Rendering does this automatically if the simulation is outdated of non-exact, so all rendered simulations will always be updated and exact. * Every cache panel also holds buttons to "Bake all dynamics", "Free all dynamics" and "Update all dynamics to current frame". * Cloth simulation supports the new cache too.
2009-06-27 15:28:58 +00:00
cache->last_exact = last_exact;
BKE_ptcache_update_info(pid);
2.5: warning fixes Mostly harmless ones, except for one about "gzopen64" being undeclared. This needs some defines in BLI_storage.h to be set before <unistd.h> is included. Might fix a crash in compressed file reading, though I'm not sure since it's hard to repeat the crash consistently.
2009-06-22 18:19:18 +00:00
}
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
void BKE_ptcache_load_external(PTCacheID *pid)
{
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/*todo*/
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
PointCache *cache = pid->cache;
int len; /* store the length of the string */
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
int info = 0;
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
/* mode is same as fopen's modes */
DIR *dir;
struct dirent *de;
char path[MAX_PTCACHE_PATH];
char filename[MAX_PTCACHE_FILE];
char ext[MAX_PTCACHE_PATH];
if(!cache)
return;
cache->startframe = MAXFRAME;
cache->endframe = -1;
cache->totpoint = 0;
ptcache_path(pid, path);
len = BKE_ptcache_id_filename(pid, filename, 1, 0, 0); /* no path */
dir = opendir(path);
if (dir==NULL)
return;
if(cache->index >= 0)
snprintf(ext, sizeof(ext), "_%02d"PTCACHE_EXT, cache->index);
else
strcpy(ext, PTCACHE_EXT);
while ((de = readdir(dir)) != NULL) {
if (strstr(de->d_name, ext)) { /* do we have the right extension?*/
if (strncmp(filename, de->d_name, len ) == 0) { /* do we have the right prefix */
/* read the number of the file */
Pointcache: * prepare pointcache for smoke (smoke doesn't use it yet, commit follows later)
2009-08-14 17:39:27 +00:00
int frame, len2 = (int)strlen(de->d_name);
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
char num[7];
if (len2 > 15) { /* could crash if trying to copy a string out of this range*/
BLI_strncpy(num, de->d_name + (strlen(de->d_name) - 15), sizeof(num));
frame = atoi(num);
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
if(frame) {
cache->startframe = MIN2(cache->startframe, frame);
cache->endframe = MAX2(cache->endframe, frame);
}
else
info = 1;
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
}
}
}
}
closedir(dir);
if(cache->startframe != MAXFRAME) {
PTCacheFile *pf;
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
/* read totpoint from info file (frame 0) */
if(info) {
pf= ptcache_file_open(pid, PTCACHE_FILE_READ, 0);
if(pf) {
if(ptcache_file_read_header_begin(pf)) {
if(pf->type == pid->type && pid->read_header(pf)) {
cache->totpoint = pf->totpoint;
cache->flag |= PTCACHE_READ_INFO;
}
else {
cache->totpoint = 0;
}
}
ptcache_file_close(pf);
}
}
/* or from any old format cache file */
else {
float old_data[14];
int elemsize = ptcache_pid_old_elemsize(pid);
pf= ptcache_file_open(pid, PTCACHE_FILE_READ, cache->startframe);
if(pf) {
while(ptcache_file_read(pf, old_data, 1, elemsize))
cache->totpoint++;
ptcache_file_close(pf);
}
External cache Particle point cache can now be loaded from external files. - Activated by "external" checkbox in cache panel and giving proper folder path and file name identifier. - External cache panel has controls for particle emission start, end, lifetime and random lifetime. These should be set according to the external data for correct playback. - External files should be named "identifier_frame_index.bphys" or "identifier_frame.bphys" where: * "identifier" is a freely choseable name. * "frame" is the cached frame number. ** Six digits padded with zeros!, for example "000024". * "index" can be used to tell caches with the same identifier apart. ** Two digits starting from zero. ** The index and the underscore before are optional. If no index is present the index number in ui should be set to -1. - Cache file format is pure floating point numbers (in binary, not text!) with each particle's data one after the other with the following data members: * 3 floats: particle's location vector * 3 floats: particle's velocity vector (per second) * 4 floats: particle's rotation quaternion * 3 floats: particle's angular velocity vector (per second) * 1 float: frame of the actual data (this can be non-integer for particles that are born or die between two integer frames, but otherwise should be the same as the "frame" in the file name) - Cache files don't have to exist for each frame. * Frames without actual data are interpolated from surrounding frames that have data (extrapolation is not supported). - Cache file formats with extended (or reduced even) data members are in future plans for easier usage. - Current code only does particles, don't yet know if it's applicable to cloth or sb. - Known issue: endianness can't yet be handled in any way. Other changes: New hard limits for many particle parameters. Some examples: - Maximum amount of particles: 10M particles :) And before you all go and crash your Blender trying this out remember that this limit is only for those freaks who really have the machine power to handle it. 10M particles alone take around 2.2 Gb of memory / disk space in saved file and each cached frame takes around 0.5 Gb of memory / disk space depending on cache mode. * Known issue: To actually use this many particles they most likely need to be allocated in parts as taking hold of a 2.2Gb chunk of memory at once is probably not ok with any operating system. - Maximum amount of children: 100k children/particle (1T childparticles here we come :D) - Kink frequency: -100k to 100k half-rotations (really strange the previous limit was only from zero upwards) - Path draw steps: 10 (power of 2 remember) - Path render steps: 20 (power of 2 also!! If over 1M segments doesn't get you smooth paths then I think nothing will!)
2009-07-23 00:19:01 +00:00
}
}
cache->flag &= ~(PTCACHE_OUTDATED|PTCACHE_FRAMES_SKIPPED);
BKE_ptcache_update_info(pid);
}
New point cache file format: - HEADER (beginning of each file) * general header: + 8 char: "BPHYSICS" + 1 int: simulation type (same as PTCacheID->type) * custom header (same for sb, particles and cloth, but can be different for new dynamics) + 1 int: totpoint (number of points) + 1 int: data_types (bit flags for what the stored data is) - DATA (directly after header) *totpoint times the data as specified in data_types flags - simulation type soft body = 0, particles = 1, cloth = 2 - data types (more can be added easily when needed) data flag contains ---------------------------------------- index (1<<0) 1 int (index of current point) location (1<<1) 3 float velocity (1<<2) 3 float rotation (1<<3) 4 float (quaternion) avelocity (1<<4) 3 float (used for particles) xconst (1<<4) 3 float (used for cloth) size (1<<5) 1 float times (1<<6) 3 float (birth, die & lifetime of particle) boids (1<<7) 1 BoidData Notes: - Every frame is not nescessary since data is interpolated for the inbetween frames. - For now every point is needed for every cached frame, the "index" data type is reserved for future usage. - For loading external particle caches only "location" data is necessary, other needed values are determined from the given data. - Non-dynamic data should be written into an info file if external usage is desired. * Info file is named as normal cache files, but with frame number 0; * "Non-dynamic" means data such as particle times. * Written automatically when baking to disk so basically a library of particle simulations should be possible. - Old disk cache format is supported for reading, so pre 2.5 files shouldn't break. However old style memory cache (added during 2.5 development) is not supported. To keep memory cached simulations convert the cache to disk cache before svn update and save the blend. - External sb and cloth caches should be perfectly possible, but due to lack of testing these are not yet enabled in ui. Other changes: - Multiple point caches per dynamics system. * In the future these will hopefully be nla editable etc, but for now things are simple and the current (selected) point cache is used. * Changing the amount of cached points (for example particle count) is allowed, but might not give correct results if multiple caches are present. - Generalization of point cache baking etc operator & rna code. - Comb brushing particle hair didn't work smoothly.
2009-08-12 09:54:29 +00:00
void BKE_ptcache_update_info(PTCacheID *pid)
{
PointCache *cache = pid->cache;
int totframes = 0;
char mem_info[64];
if(cache->flag & PTCACHE_EXTERNAL) {
int cfra = cache->startframe;
for(; cfra<=cache->endframe; cfra++) {
if(BKE_ptcache_id_exist(pid, cfra))
totframes++;
}
if(totframes && cache->totpoint)
sprintf(cache->info, "%i points found!", cache->totpoint);
else
sprintf(cache->info, "No valid data to read!");
return;
}
if(cache->flag & PTCACHE_DISK_CACHE) {
int cfra = cache->startframe;
for(; cfra<=cache->endframe; cfra++) {
if(BKE_ptcache_id_exist(pid, cfra))
totframes++;
}
sprintf(mem_info, "%i frames on disk", totframes);
}
else {
PTCacheMem *pm = cache->mem_cache.first;
float framesize = 0.0f, bytes = 0.0f;
int mb;
if(pm)
framesize = (float)ptcache_pid_old_elemsize(pid) * (float)pm->totpoint;
for(; pm; pm=pm->next)
totframes++;
bytes = totframes * framesize;
mb = (bytes > 1024.0f * 1024.0f);
sprintf(mem_info, "%i frames in memory (%.1f %s)",
totframes,
bytes / (mb ? 1024.0f * 1024.0f : 1024.0f),
mb ? "Mb" : "kb");
}
if(cache->flag & PTCACHE_OUTDATED) {
sprintf(cache->info, "%s, cache is outdated!", mem_info);
}
else if(cache->flag & PTCACHE_FRAMES_SKIPPED) {
sprintf(cache->info, "%s, not exact since frame %i.", mem_info, cache->last_exact);
}
else
sprintf(cache->info, "%s.", mem_info);
Commenting out code from commit 22457 by Genscher for PointCache. There was some missing code or something causing compiling problems.
2009-08-15 00:40:44 +00:00
}
Copy Permalink