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blender-archive/source/blender/blenkernel/BKE_multires.h

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== Multires == Cleaned up bad level calls for multires; moved most of multires functions to blenkern, where they should have been in the first place. Functionality of the tool is unchanged.
2007-12-26 09:39:15 +00:00
/*
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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
* of the License, or (at your option) any later version.
*
* 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,
correct fsf address
2010-02-12 13:34:04 +00:00
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
== Multires == Cleaned up bad level calls for multires; moved most of multires functions to blenkern, where they should have been in the first place. Functionality of the tool is unchanged.
2007-12-26 09:39:15 +00:00
*
* The Original Code is Copyright (C) 2007 by Nicholas Bishop
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
Sculpt Branch: * Smooth brush works again for multires. * Optimal Display option for multires modifier, same as subsurf.
2009-12-09 13:37:19 +00:00
#ifndef BKE_MULTIRES_H
#define BKE_MULTIRES_H
Got rid of old multires code, brought in multires modifier from soc-2008-nicholasbishop branch. Note: any old code with multires_test() or multires_level1_test() can just be deleted, not needed by the multires modifier.
2009-01-06 18:59:03 +00:00
struct DerivedMesh;
== Multires == Cleaned up bad level calls for multires; moved most of multires functions to blenkern, where they should have been in the first place. Functionality of the tool is unchanged.
2007-12-26 09:39:15 +00:00
struct Mesh;
Got rid of old multires code, brought in multires modifier from soc-2008-nicholasbishop branch. Note: any old code with multires_test() or multires_level1_test() can just be deleted, not needed by the multires modifier.
2009-01-06 18:59:03 +00:00
struct MFace;
Sculpt Branch: * Smooth brush works again for multires. * Optimal Display option for multires modifier, same as subsurf.
2009-12-09 13:37:19 +00:00
struct Multires;
Got rid of old multires code, brought in multires modifier from soc-2008-nicholasbishop branch. Note: any old code with multires_test() or multires_level1_test() can just be deleted, not needed by the multires modifier.
2009-01-06 18:59:03 +00:00
struct MultiresModifierData;
Todo #21831: Deform modifier is applied to base mesh instead of multires modifier if both are in the stack (patch #21965) This patch also removes limitation of multires reshaping when destination object has got modifiers after multires modifier.
2010-04-13 06:06:49 +00:00
struct ModifierData;
== Multires == Cleaned up bad level calls for multires; moved most of multires functions to blenkern, where they should have been in the first place. Functionality of the tool is unchanged.
2007-12-26 09:39:15 +00:00
struct Object;
Fix #24388: multires base mesh - MDisp should be re-allocated if face changed amount of vertices - Allocate disps array in layerSwap_mdisps to prevent loosing all highres data
2010-11-04 16:00:28 +00:00
struct Scene;
struct MDisps;
== Multires == Cleaned up bad level calls for multires; moved most of multires functions to blenkern, where they should have been in the first place. Functionality of the tool is unchanged.
2007-12-26 09:39:15 +00:00
Multires/2.5: Attempt to make multires updating a little cleaner by assuming that no update needs to be performed, and only doing the update when the modified flag is set (either by sculpting or using some other tool that needs an update.)
2009-06-07 18:09:22 +00:00
void multires_mark_as_modified(struct Object *ob);
== Multires == Cleaned up bad level calls for multires; moved most of multires functions to blenkern, where they should have been in the first place. Functionality of the tool is unchanged.
2007-12-26 09:39:15 +00:00
Got rid of old multires code, brought in multires modifier from soc-2008-nicholasbishop branch. Note: any old code with multires_test() or multires_level1_test() can just be deleted, not needed by the multires modifier.
2009-01-06 18:59:03 +00:00
void multires_force_update(struct Object *ob);
Fix #20928: difference boolean modifier is not applied during rendering, fixed by last depsgraph commit and this extra check to avoid unnecessary free of derivedmesh for sculpt/multires.
2010-02-07 10:16:42 +00:00
void multires_force_render_update(struct Object *ob);
Fix #22239: external btx won't load.
2010-06-01 19:26:35 +00:00
void multires_force_external_reload(struct Object *ob);
== Multires == Cleaned up bad level calls for multires; moved most of multires functions to blenkern, where they should have been in the first place. Functionality of the tool is unchanged.
2007-12-26 09:39:15 +00:00
== Multires == Fixed bug #23657, "Modifiers dosen't work when you select diffrent mesh for object" Multires modifier now adds empty mdisps if they're missing, rather than displaying a warning Switching an object's mesh will now check for a multires modifier; if found the modifier's total number of levels are reset to match the mesh's mdisps Switching the mesh also forces a multires update so that sculpted changes aren't lost
2010-09-09 00:14:51 +00:00
void multiresModifier_set_levels_from_disps(struct MultiresModifierData *mmd, struct Object *ob);
Sculpt Branch: * Smooth brush works again for multires. * Optimal Display option for multires modifier, same as subsurf.
2009-12-09 13:37:19 +00:00
struct DerivedMesh *multires_dm_create_from_derived(struct MultiresModifierData*,
int local_mmd, struct DerivedMesh*, struct Object *, int, int);
== Multires == Cleaned up bad level calls for multires; moved most of multires functions to blenkern, where they should have been in the first place. Functionality of the tool is unchanged.
2007-12-26 09:39:15 +00:00
Fix #22213: applying deform modifier in front of multires modifier crashes, should not do multires reshape in this case, but just regular apply.
2010-07-05 12:20:49 +00:00
struct MultiresModifierData *find_multires_modifier_before(struct Scene *scene,
struct ModifierData *lastmd);
Todo issue: sculpting on deformed mesh Used a crazyspace approach (like in edit mode), but only modifiers with deformMatricies are allowed atm (currently shapekeys and armature modifiers only). All the rest modifiers had an warning message that they aren't applied because of sculpt mode. Deformation of multires is also unsupported. With all this restictions users will always see the actual "layer" (or maybe mesh state would be more correct word) they are sculpting on. Internal changes: - All modifiers could have deformMatricies callback (the same as deformMatriciesEM but for non-edit mode usage) - Added function to build crazyspace for sculpting (sculpt_get_deform_matrices), but it could be generalized for usage in other painting modes (particle edit mode, i.e) Todo: - Implement crazyspace correction to support all kinds of deformation modifiers - Maybe deformation of multires isn't so difficult? - And maybe we could avoid extra bad-level-stub for ED_sculpt_modifiers_changed without code duplicating?
2011-01-31 20:02:51 +00:00
struct MultiresModifierData *get_multires_modifier(struct Scene *scene, struct Object *ob, int use_first);
- Added checking if modifier is active in find_multires_modifier - Pass MultiresModifierData to reshape functions
2010-06-06 15:22:27 +00:00
struct DerivedMesh *get_multires_dm(struct Scene *scene, struct MultiresModifierData *mmd,
struct Object *ob);
Got rid of old multires code, brought in multires modifier from soc-2008-nicholasbishop branch. Note: any old code with multires_test() or multires_level1_test() can just be deleted, not needed by the multires modifier.
2009-01-06 18:59:03 +00:00
void multiresModifier_del_levels(struct MultiresModifierData *, struct Object *, int direction);
Fix for bug [#21534] Multires modifier strange deformations This adds the "Apply Base" feature from my gsoc2010 branch. Apply Base partially applies the modifier, in that the mesh is reshaped to more closely match the deformed mesh. The upper-level displacements are recalculated so that the highest multires level appears unchanged. Multires does not currently deal well with too large displacements. An easy-to-reproduce example: create any mesh type, add multires, subdivide a few times, then use the sculpt grab brush to drag the entire mesh over a few units. At the highest level, and at level 0, the mesh looks fine, but all of the intervening levels will have ugly spikes on them. This patch doesn't help with situations where you can't modify the base mesh, but otherwise works around the problem fairly well (albeit with a heuristic, not an exact solution.)
2011-01-07 21:12:47 +00:00
void multiresModifier_base_apply(struct MultiresModifierData *mmd, struct Object *ob);
Sculpt: Multires * Displacement coordinates are now stored differently, as a grid per face corner. This means there is duplication of coordinates, especially at low subdivision levels, but the simpler implementation justifies it I think. * ToDo: conversion of existing multires files (2.4x or 2.5x), loading them may even crash now. * Editmode preservation/interpolation code also has not been updated yet. * Multires now works on the CCGDerivedMesh grids instead of CDDerivedMesh, which should be more memory efficient. * There are still bad memory peaks (if you're using 32bit) when subdividing or propagating displacements. Though at least there should be no huge memory blocks allocated, which windows is now to have trouble with. * Still found some weird spike artifacts at lower multires levels, some also happening before this commit. Perhaps computation of tangents needs to be tweaked more. * Multires modifier now has viewport, sculpt and render levels. Also the levels have been made consistent with subsurf, previously the same level of subdivision was one less for multires. * Both multires and subsurf modifier now can have their subdivision level set to 0 for no subdivision.
2009-11-25 14:07:12 +00:00
void multiresModifier_subdivide(struct MultiresModifierData *mmd, struct Object *ob,
Got rid of old multires code, brought in multires modifier from soc-2008-nicholasbishop branch. Note: any old code with multires_test() or multires_level1_test() can just be deleted, not needed by the multires modifier.
2009-01-06 18:59:03 +00:00
int updateblock, int simple);
- Added checking if modifier is active in find_multires_modifier - Pass MultiresModifierData to reshape functions
2010-06-06 15:22:27 +00:00
int multiresModifier_reshape(struct Scene *scene, struct MultiresModifierData *mmd,
struct Object *dst, struct Object *src);
int multiresModifier_reshapeFromDM(struct Scene *scene, struct MultiresModifierData *mmd,
struct Object *ob, struct DerivedMesh *srcdm);
int multiresModifier_reshapeFromDeformMod(struct Scene *scene, struct MultiresModifierData *mmd,
struct Object *ob, struct ModifierData *md);
Got rid of old multires code, brought in multires modifier from soc-2008-nicholasbishop branch. Note: any old code with multires_test() or multires_level1_test() can just be deleted, not needed by the multires modifier.
2009-01-06 18:59:03 +00:00
Sculpt Branch: * Smooth brush works again for multires. * Optimal Display option for multires modifier, same as subsurf.
2009-12-09 13:37:19 +00:00
void multires_stitch_grids(struct Object *);
Got rid of old multires code, brought in multires modifier from soc-2008-nicholasbishop branch. Note: any old code with multires_test() or multires_level1_test() can just be deleted, not needed by the multires modifier.
2009-01-06 18:59:03 +00:00
/* Related to the old multires */
Sculpt Branch: * Multires 2.50 -> Branch compatibility code converting to the new displacement format. 2.49 -> 2.50 is not functional yet.
2009-12-10 17:37:04 +00:00
void multires_free(struct Multires *mr);
void multires_load_old(struct Object *ob, struct Mesh *me);
void multires_load_old_250(struct Mesh *);
Sculpt Branch: * Smooth brush works again for multires. * Optimal Display option for multires modifier, same as subsurf.
2009-12-09 13:37:19 +00:00
Fix #24255: Multires object gets modified when joining it to another multires object. Fix #22018: joining objects with different multires levels loses levesl from the higher multires object - Synchronyze mulires subdivision level when joining objects - Apply scale on MDISP layer when applying scale - Re-calculate MDISP when joining scaled objects
2010-10-25 08:03:05 +00:00
void multiresModifier_scale_disp(struct Scene *scene, struct Object *ob);
void multiresModifier_prepare_join(struct Scene *scene, struct Object *ob, struct Object *to_ob);
Fix #24388: multires base mesh - MDisp should be re-allocated if face changed amount of vertices - Allocate disps array in layerSwap_mdisps to prevent loosing all highres data
2010-11-04 16:00:28 +00:00
int multires_mdisp_corners(struct MDisps *s);
Initial implementation of mdisps layer interpolation Sculpt data shouldn't be lost when making topology changes without quads<->tris face converison. General idea: - Go through all grid points of each corner and convert per-corner coordiante to per-face cooredinate - Apply weights and convert new point to per-corner coordinate - Use bilinear interpolation to get needed displacement vector Some additional work was necessery: - Two neighbour corners could have different displacements along common boundary. multires_mdisp_smooth_bounds() makes displacement "symmetrical" - Point could change it's corner, so displacement vector should be flipped in some way. In some cases it's not only flipping, because corner could be mapped with some rotation. It's not solved for triangular faces yet, so only z-axis displacement would be interpolated for tris. More limitations: - Interpolation will give incorrect result after quad<->triangle face conversion. - When face normal was fillped displacement would change it's direction too.
2010-12-13 21:22:30 +00:00
void multires_mdisp_smooth_bounds(struct MDisps *disps);
Fix #24388: multires base mesh - MDisp should be re-allocated if face changed amount of vertices - Allocate disps array in layerSwap_mdisps to prevent loosing all highres data
2010-11-04 16:00:28 +00:00
/* update multires data after topology changing */
Total displacement levels should be set in multires_topology_changed
2011-01-30 17:55:48 +00:00
void multires_topology_changed(struct Scene *scene, struct Object *ob);
Fix #24388: multires base mesh - MDisp should be re-allocated if face changed amount of vertices - Allocate disps array in layerSwap_mdisps to prevent loosing all highres data
2010-11-04 16:00:28 +00:00
Multires math function used for layer interpolation moved from customdata.c to multires.c No functional changes
2011-01-02 16:43:28 +00:00
/**** interpolation stuff ****/
access past array bounds in layerInterp_mdisps, also make some vars const.
2011-02-12 10:18:21 +00:00
void old_mdisps_bilinear(float out[3], float (*disps)[3], const int st, float u, float v);
void mdisp_rot_crn_to_face(const int S, const int corners, const int face_side, const float x, const float y, float *u, float *v);
int mdisp_rot_face_to_crn(const int corners, const int face_side, const float u, const float v, float *x, float *y);
void mdisp_apply_weight(const int S, const int corners, int x, int y, const int face_side, float crn_weight[4][2], float *u_r, float *v_r);
void mdisp_flip_disp(const int S, const int corners, const float axis_x[2], const float axis_y[2], float disp[3]);
Splitting quad into triangles and merging triangles into quad should work correct with sculpting data now. Joining two triangles could give incorrect sculpting result for special topologies, but it's that case that can't be nicely handled with our layers architecture.
2011-01-02 17:38:22 +00:00
void mdisp_join_tris(struct MDisps *dst, struct MDisps *tri1, struct MDisps *tri2);
Multires math function used for layer interpolation moved from customdata.c to multires.c No functional changes
2011-01-02 16:43:28 +00:00
access past array bounds in layerInterp_mdisps, also make some vars const.
2011-02-12 10:18:21 +00:00
#endif // BKE_MULTIRES_H
Sculpt Branch: * Smooth brush works again for multires. * Optimal Display option for multires modifier, same as subsurf.
2009-12-09 13:37:19 +00:00
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