This is just the basic structure, the simulation isn't hooked up yet.
Scenes get a pointer to a rigid body world that holds rigid body objects.
Objects get a pointer to a rigdid body object.
Both rigid body world and objects aren't used directly in the simulation
and only hold information to create the actual physics objects.
Physics objects are created when rigid body objects are validated.
In order to keep blender and bullet objects in sync care has to be taken
to either call appropriate set functions or flag objects for validation.
Part of GSoC 2010 and 2012.
Authors: Joshua Leung (aligorith), Sergej Reich (sergof)
- Drop group into 3d window now puts itself at mouse cursor location.
- Drop objects into 3d window now doesn't move the 3d cursor anymore.
Added new function ED_view3d_cursor3d_position() to handle this,
so the temporarily object-drop operator macro also could go away.
(Which was setting 3d cursor)
Added drag-drop support for Groups. On drop in 3d window it creates an instance.
Todo: it adds this on 3d cursor position still. The existing drop-object-duplicate operator
is a Macro - with warning. For adding on mouse-cursor position we need a better
way (new function call, just use operator option).
Setup: 2 windows, 2 scenes, shared objects and groups.
Errors:
- editing in 1 window, didn't correctly update shared stuff in the other
(like child - parent relations)
- deleting group members in 1 scene, could crash the other.
Fixes:
- On load, only a depsgraph was created for the "active" scene. Now it makes
depsgraphs for all visible scenes.
- "DAG ID flushes" were only working on active scenes too, they now take
the other visible into account as well.
- Delete object - notifier was only sent to the active scene.
All in all it's a real depsgraph fix (for once!) :) Using multi-window and
multi-scene setups now is more useful.
adding meshes were scaling the user input values so the distance on the button didnt relate to the scale of the object added.
Now use an invoke function that scales unset default values.
There were a bunch of other issues with dupli motion blur and syncing, the problem
being that there was no proper way to detect corresponding duplis between frames
or updates. As a solution, a persistent_id was added to the DupliObject. It's an
extension of the previous index value, with one index for each dupli level. This
can be used to reliably find matching dupli objects between frames. Works with
nested duplis, multiple particle systems, etc.
Made it so meshes, curves, surfaces and metaballs are scaling to a grid cell size,
which makes them behave consistently now.
There're still issues to be resolved still:
- Lattice is not scaled to grid cell size yet, it uses slightly different add
function which makes scaling a bit tricky and hacky. Would prefer to do a
bit bigger refactor here, so it's a TODO for now.
- Cameras, speakers and other helpers are not scaling. They don't have data
on which scale could be applied and perhaps it should be some kind of draw
scale. Also would consider it's a TODO for now.
Documentation & Test blend files:
------------------
http://wiki.blender.org/index.php/User:MiikaH/GSoC-2012-Smoke-Simulator-Improvements
Credits:
------------------
Miika Hamalainen (MiikaH): Student / Main programmer
Daniel Genrich (Genscher): Mentor / Programmer of merged patches from Smoke2 branch
Google: For Google Summer of Code 2012
* Get rid of ED_object_add_generic_invoke() and all invoke callbacks using it, it was doing nothing exec() callbacks would not do. In fact, its only action (setting part of common add ops properties, like loc, layers, etc.) was needed too by direct exec call, so it was done twice in case of using invoke()!
* Replace custom invoke code for metaballs by WM_menu_invoke helper (as already used by lamps).
* Add a new OBJECT_OT_empty_add op, to allow direct addition of empties of a given drawtype.
* And some general code cleanup (like trailing spaces, empty lines, ...).
Did quite a bunch of tests/verifications, but obviously could not tackle all possible scenarios... Anyway, if any, bugs should arize quite quickly (but I don’t expect any! :p ).
Generated and UV coordinates from the duplicator of instance instead of the
object itself.
This was used in e.g. Big Buck Bunny for texturing instanced feathers with
a UV map on the bird. Many files changed, mainly to do some refactoring to
get rid of G.rendering global in duplilist code.
Added four new functions as shortcuts to creating GHashes that use the
standard ptr/str/int/pair hash and compare functions.
GHash *BLI_ghash_ptr_new(const char *info);
GHash *BLI_ghash_str_new(const char *info);
GHash *BLI_ghash_int_new(const char *info);
GHash *BLI_ghash_pair_new(const char *info);
Replaced almost all occurrences of BLI_ghash_new() with one of the
above functions.
- Make sure functions are named in way BKE_<object>_<action> (same way as RNA callbacks)
- Make functions which are used by mball.c only static and remove their prototypes
from public header file.
Further cleanup is coming.
