329e2d8037
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?
246 lines
6.4 KiB
C
246 lines
6.4 KiB
C
/*
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2005 by the Blender Foundation.
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* All rights reserved.
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*
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* Contributor(s): Daniel Dunbar
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* Ton Roosendaal,
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* Ben Batt,
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* Brecht Van Lommel,
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* Campbell Barton
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*
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* ***** END GPL LICENSE BLOCK *****
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*
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*/
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#include "stddef.h"
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#include "DNA_material_types.h"
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#include "BLI_utildefines.h"
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#include "BKE_cdderivedmesh.h"
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#include "BKE_material.h"
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#include "BKE_modifier.h"
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#include "BKE_particle.h"
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#include "MOD_util.h"
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static void initData(ModifierData *md)
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{
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ParticleSystemModifierData *psmd= (ParticleSystemModifierData*) md;
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psmd->psys= 0;
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psmd->dm=0;
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psmd->totdmvert= psmd->totdmedge= psmd->totdmface= 0;
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}
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static void freeData(ModifierData *md)
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{
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ParticleSystemModifierData *psmd= (ParticleSystemModifierData*) md;
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if(psmd->dm){
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psmd->dm->needsFree = 1;
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psmd->dm->release(psmd->dm);
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psmd->dm=0;
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}
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/* ED_object_modifier_remove may have freed this first before calling
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* modifier_free (which calls this function) */
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if(psmd->psys)
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psmd->psys->flag |= PSYS_DELETE;
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}
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static void copyData(ModifierData *md, ModifierData *target)
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{
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ParticleSystemModifierData *psmd= (ParticleSystemModifierData*) md;
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ParticleSystemModifierData *tpsmd= (ParticleSystemModifierData*) target;
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tpsmd->dm = 0;
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tpsmd->totdmvert = tpsmd->totdmedge = tpsmd->totdmface = 0;
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//tpsmd->facepa = 0;
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tpsmd->flag = psmd->flag;
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/* need to keep this to recognise a bit later in copy_object */
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tpsmd->psys = psmd->psys;
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}
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static CustomDataMask requiredDataMask(Object *ob, ModifierData *md)
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{
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ParticleSystemModifierData *psmd= (ParticleSystemModifierData*) md;
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CustomDataMask dataMask = 0;
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Material *ma;
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MTex *mtex;
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int i;
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if(!psmd->psys->part)
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return 0;
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ma= give_current_material(ob, psmd->psys->part->omat);
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if(ma) {
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for(i=0; i<MAX_MTEX; i++) {
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mtex=ma->mtex[i];
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if(mtex && (ma->septex & (1<<i))==0)
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if(mtex->pmapto && (mtex->texco & TEXCO_UV))
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dataMask |= CD_MASK_MTFACE;
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}
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}
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if(psmd->psys->part->tanfac!=0.0)
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dataMask |= CD_MASK_MTFACE;
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/* ask for vertexgroups if we need them */
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for(i=0; i<PSYS_TOT_VG; i++){
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if(psmd->psys->vgroup[i]){
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dataMask |= CD_MASK_MDEFORMVERT;
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break;
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}
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}
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/* particles only need this if they are after a non deform modifier, and
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* the modifier stack will only create them in that case. */
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dataMask |= CD_MASK_ORIGSPACE|CD_MASK_ORIGINDEX;
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dataMask |= CD_MASK_ORCO;
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return dataMask;
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}
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/* saves the current emitter state for a particle system and calculates particles */
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static void deformVerts(ModifierData *md, Object *ob,
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DerivedMesh *derivedData,
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float (*vertexCos)[3],
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int UNUSED(numVerts),
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int UNUSED(useRenderParams),
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int UNUSED(isFinalCalc))
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{
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DerivedMesh *dm = derivedData;
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ParticleSystemModifierData *psmd= (ParticleSystemModifierData*) md;
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ParticleSystem * psys=0;
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int needsFree=0;
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if(ob->particlesystem.first)
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psys=psmd->psys;
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else
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return;
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if(!psys_check_enabled(ob, psys))
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return;
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if(dm==0) {
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dm= get_dm(ob, NULL, NULL, vertexCos, 1);
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if(!dm)
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return;
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needsFree= 1;
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}
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/* clear old dm */
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if(psmd->dm){
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psmd->dm->needsFree = 1;
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psmd->dm->release(psmd->dm);
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}
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else if(psmd->flag & eParticleSystemFlag_file_loaded) {
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/* in file read dm just wasn't saved in file so no need to reset everything */
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psmd->flag &= ~eParticleSystemFlag_file_loaded;
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}
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else {
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/* no dm before, so recalc particles fully */
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psys->recalc |= PSYS_RECALC_RESET;
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}
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/* make new dm */
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psmd->dm=CDDM_copy(dm);
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CDDM_apply_vert_coords(psmd->dm, vertexCos);
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CDDM_calc_normals(psmd->dm);
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if(needsFree){
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dm->needsFree = 1;
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dm->release(dm);
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}
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/* protect dm */
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psmd->dm->needsFree = 0;
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/* report change in mesh structure */
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if(psmd->dm->getNumVerts(psmd->dm)!=psmd->totdmvert ||
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psmd->dm->getNumEdges(psmd->dm)!=psmd->totdmedge ||
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psmd->dm->getNumFaces(psmd->dm)!=psmd->totdmface){
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psys->recalc |= PSYS_RECALC_RESET;
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psmd->totdmvert= psmd->dm->getNumVerts(psmd->dm);
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psmd->totdmedge= psmd->dm->getNumEdges(psmd->dm);
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psmd->totdmface= psmd->dm->getNumFaces(psmd->dm);
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}
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if(psys) {
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psmd->flag &= ~eParticleSystemFlag_psys_updated;
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particle_system_update(md->scene, ob, psys);
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psmd->flag |= eParticleSystemFlag_psys_updated;
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}
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}
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/* disabled particles in editmode for now, until support for proper derivedmesh
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* updates is coded */
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#if 0
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static void deformVertsEM(
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ModifierData *md, Object *ob, EditMesh *editData,
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DerivedMesh *derivedData, float (*vertexCos)[3], int numVerts)
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{
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DerivedMesh *dm = derivedData;
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if(!derivedData) dm = CDDM_from_editmesh(editData, ob->data);
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deformVerts(md, ob, dm, vertexCos, numVerts);
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if(!derivedData) dm->release(dm);
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}
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#endif
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ModifierTypeInfo modifierType_ParticleSystem = {
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/* name */ "ParticleSystem",
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/* structName */ "ParticleSystemModifierData",
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/* structSize */ sizeof(ParticleSystemModifierData),
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/* type */ eModifierTypeType_OnlyDeform,
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/* flags */ eModifierTypeFlag_AcceptsMesh
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| eModifierTypeFlag_SupportsMapping
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| eModifierTypeFlag_UsesPointCache /*
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| eModifierTypeFlag_SupportsEditmode
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| eModifierTypeFlag_EnableInEditmode */,
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/* copyData */ copyData,
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/* deformVerts */ deformVerts,
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/* deformVertsEM */ 0 /* deformVertsEM */ ,
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/* deformMatrices */ 0,
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/* deformMatricesEM */ 0,
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/* applyModifier */ 0,
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/* applyModifierEM */ 0,
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/* initData */ initData,
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/* requiredDataMask */ requiredDataMask,
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/* freeData */ freeData,
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/* isDisabled */ 0,
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/* updateDepgraph */ 0,
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/* dependsOnTime */ 0,
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/* dependsOnNormals */ 0,
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/* foreachObjectLink */ 0,
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/* foreachIDLink */ 0,
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};
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