1069 lines
29 KiB
C
1069 lines
29 KiB
C
/*
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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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/** \file blender/modifiers/intern/MOD_explode.c
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* \ingroup modifiers
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*/
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#include "DNA_meshdata_types.h"
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#include "DNA_scene_types.h"
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#include "DNA_object_types.h"
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#include "BLI_utildefines.h"
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#include "BLI_kdtree.h"
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#include "BLI_rand.h"
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#include "BLI_math.h"
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#include "BLI_edgehash.h"
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#include "BKE_cdderivedmesh.h"
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#include "BKE_deform.h"
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#include "BKE_lattice.h"
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#include "BKE_mesh.h"
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#include "BKE_modifier.h"
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#include "BKE_particle.h"
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#include "BKE_scene.h"
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#include "MEM_guardedalloc.h"
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static void initData(ModifierData *md)
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{
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ExplodeModifierData *emd = (ExplodeModifierData *) md;
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emd->facepa = NULL;
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emd->flag |= eExplodeFlag_Unborn + eExplodeFlag_Alive + eExplodeFlag_Dead;
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}
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static void freeData(ModifierData *md)
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{
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ExplodeModifierData *emd = (ExplodeModifierData *) md;
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if (emd->facepa) MEM_freeN(emd->facepa);
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}
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static void copyData(ModifierData *md, ModifierData *target)
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{
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#if 0
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ExplodeModifierData *emd = (ExplodeModifierData *) md;
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#endif
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ExplodeModifierData *temd = (ExplodeModifierData *) target;
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modifier_copyData_generic(md, target);
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temd->facepa = NULL;
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}
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static bool dependsOnTime(ModifierData *UNUSED(md))
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{
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return true;
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}
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static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
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{
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ExplodeModifierData *emd = (ExplodeModifierData *) md;
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CustomDataMask dataMask = 0;
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if (emd->vgroup)
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dataMask |= CD_MASK_MDEFORMVERT;
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return dataMask;
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}
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static void createFacepa(ExplodeModifierData *emd,
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ParticleSystemModifierData *psmd,
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DerivedMesh *dm)
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{
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ParticleSystem *psys = psmd->psys;
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MFace *fa = NULL, *mface = NULL;
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MVert *mvert = NULL;
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ParticleData *pa;
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KDTree *tree;
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RNG *rng;
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float center[3], co[3];
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int *facepa = NULL, *vertpa = NULL, totvert = 0, totface = 0, totpart = 0;
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int i, p, v1, v2, v3, v4 = 0;
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mvert = dm->getVertArray(dm);
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mface = dm->getTessFaceArray(dm);
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totface = dm->getNumTessFaces(dm);
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totvert = dm->getNumVerts(dm);
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totpart = psmd->psys->totpart;
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rng = BLI_rng_new_srandom(psys->seed);
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if (emd->facepa)
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MEM_freeN(emd->facepa);
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facepa = emd->facepa = MEM_callocN(sizeof(int) * totface, "explode_facepa");
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vertpa = MEM_callocN(sizeof(int) * totvert, "explode_vertpa");
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/* initialize all faces & verts to no particle */
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for (i = 0; i < totface; i++)
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facepa[i] = totpart;
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for (i = 0; i < totvert; i++)
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vertpa[i] = totpart;
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/* set protected verts */
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if (emd->vgroup) {
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MDeformVert *dvert = dm->getVertDataArray(dm, CD_MDEFORMVERT);
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if (dvert) {
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const int defgrp_index = emd->vgroup - 1;
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for (i = 0; i < totvert; i++, dvert++) {
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float val = BLI_rng_get_float(rng);
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val = (1.0f - emd->protect) * val + emd->protect * 0.5f;
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if (val < defvert_find_weight(dvert, defgrp_index))
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vertpa[i] = -1;
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}
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}
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}
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/* make tree of emitter locations */
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tree = BLI_kdtree_new(totpart);
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for (p = 0, pa = psys->particles; p < totpart; p++, pa++) {
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psys_particle_on_emitter(psmd, psys->part->from, pa->num, pa->num_dmcache, pa->fuv, pa->foffset, co, NULL, NULL, NULL, NULL, NULL);
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BLI_kdtree_insert(tree, p, co);
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}
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BLI_kdtree_balance(tree);
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/* set face-particle-indexes to nearest particle to face center */
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for (i = 0, fa = mface; i < totface; i++, fa++) {
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add_v3_v3v3(center, mvert[fa->v1].co, mvert[fa->v2].co);
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add_v3_v3(center, mvert[fa->v3].co);
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if (fa->v4) {
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add_v3_v3(center, mvert[fa->v4].co);
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mul_v3_fl(center, 0.25);
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}
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else
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mul_v3_fl(center, 1.0f / 3.0f);
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p = BLI_kdtree_find_nearest(tree, center, NULL);
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v1 = vertpa[fa->v1];
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v2 = vertpa[fa->v2];
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v3 = vertpa[fa->v3];
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if (fa->v4)
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v4 = vertpa[fa->v4];
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if (v1 >= 0 && v2 >= 0 && v3 >= 0 && (fa->v4 == 0 || v4 >= 0))
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facepa[i] = p;
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if (v1 >= 0) vertpa[fa->v1] = p;
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if (v2 >= 0) vertpa[fa->v2] = p;
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if (v3 >= 0) vertpa[fa->v3] = p;
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if (fa->v4 && v4 >= 0) vertpa[fa->v4] = p;
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}
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if (vertpa) MEM_freeN(vertpa);
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BLI_kdtree_free(tree);
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BLI_rng_free(rng);
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}
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static int edgecut_get(EdgeHash *edgehash, unsigned int v1, unsigned int v2)
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{
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return GET_INT_FROM_POINTER(BLI_edgehash_lookup(edgehash, v1, v2));
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}
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static const short add_faces[24] = {
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0,
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0, 0, 2, 0, 1, 2, 2, 0, 2, 1,
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2, 2, 2, 2, 3, 0, 0, 0, 1, 0,
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1, 1, 2
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};
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static MFace *get_dface(DerivedMesh *dm, DerivedMesh *split, int cur, int i, MFace *mf)
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{
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MFace *df = CDDM_get_tessface(split, cur);
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DM_copy_tessface_data(dm, split, i, cur, 1);
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*df = *mf;
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return df;
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}
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#define SET_VERTS(a, b, c, d) \
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{ \
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v[0] = mf->v##a; uv[0] = a - 1; \
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v[1] = mf->v##b; uv[1] = b - 1; \
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v[2] = mf->v##c; uv[2] = c - 1; \
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v[3] = mf->v##d; uv[3] = d - 1; \
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} (void)0
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#define GET_ES(v1, v2) edgecut_get(eh, v1, v2)
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#define INT_UV(uvf, c0, c1) mid_v2_v2v2(uvf, mf->uv[c0], mf->uv[c1])
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static void remap_faces_3_6_9_12(DerivedMesh *dm, DerivedMesh *split, MFace *mf, int *facepa, int *vertpa, int i, EdgeHash *eh, int cur, int v1, int v2, int v3, int v4)
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{
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MFace *df1 = get_dface(dm, split, cur, i, mf);
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MFace *df2 = get_dface(dm, split, cur + 1, i, mf);
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MFace *df3 = get_dface(dm, split, cur + 2, i, mf);
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facepa[cur] = vertpa[v1];
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df1->v1 = v1;
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df1->v2 = GET_ES(v1, v2);
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df1->v3 = GET_ES(v2, v3);
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df1->v4 = v3;
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df1->flag |= ME_FACE_SEL;
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facepa[cur + 1] = vertpa[v2];
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df2->v1 = GET_ES(v1, v2);
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df2->v2 = v2;
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df2->v3 = GET_ES(v2, v3);
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df2->v4 = 0;
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df2->flag &= ~ME_FACE_SEL;
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facepa[cur + 2] = vertpa[v1];
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df3->v1 = v1;
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df3->v2 = v3;
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df3->v3 = v4;
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df3->v4 = 0;
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df3->flag &= ~ME_FACE_SEL;
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}
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static void remap_uvs_3_6_9_12(DerivedMesh *dm, DerivedMesh *split, int numlayer, int i, int cur, int c0, int c1, int c2, int c3)
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{
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MTFace *mf, *df1, *df2, *df3;
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int l;
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for (l = 0; l < numlayer; l++) {
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mf = CustomData_get_layer_n(&split->faceData, CD_MTFACE, l);
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df1 = mf + cur;
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df2 = df1 + 1;
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df3 = df1 + 2;
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mf = CustomData_get_layer_n(&dm->faceData, CD_MTFACE, l);
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mf += i;
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copy_v2_v2(df1->uv[0], mf->uv[c0]);
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INT_UV(df1->uv[1], c0, c1);
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INT_UV(df1->uv[2], c1, c2);
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copy_v2_v2(df1->uv[3], mf->uv[c2]);
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INT_UV(df2->uv[0], c0, c1);
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copy_v2_v2(df2->uv[1], mf->uv[c1]);
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INT_UV(df2->uv[2], c1, c2);
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copy_v2_v2(df3->uv[0], mf->uv[c0]);
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copy_v2_v2(df3->uv[1], mf->uv[c2]);
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copy_v2_v2(df3->uv[2], mf->uv[c3]);
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}
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}
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static void remap_faces_5_10(DerivedMesh *dm, DerivedMesh *split, MFace *mf, int *facepa, int *vertpa, int i, EdgeHash *eh, int cur, int v1, int v2, int v3, int v4)
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{
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MFace *df1 = get_dface(dm, split, cur, i, mf);
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MFace *df2 = get_dface(dm, split, cur + 1, i, mf);
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facepa[cur] = vertpa[v1];
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df1->v1 = v1;
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df1->v2 = v2;
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df1->v3 = GET_ES(v2, v3);
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df1->v4 = GET_ES(v1, v4);
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df1->flag |= ME_FACE_SEL;
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facepa[cur + 1] = vertpa[v3];
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df2->v1 = GET_ES(v1, v4);
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df2->v2 = GET_ES(v2, v3);
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df2->v3 = v3;
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df2->v4 = v4;
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df2->flag |= ME_FACE_SEL;
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}
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static void remap_uvs_5_10(DerivedMesh *dm, DerivedMesh *split, int numlayer, int i, int cur, int c0, int c1, int c2, int c3)
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{
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MTFace *mf, *df1, *df2;
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int l;
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for (l = 0; l < numlayer; l++) {
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mf = CustomData_get_layer_n(&split->faceData, CD_MTFACE, l);
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df1 = mf + cur;
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df2 = df1 + 1;
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mf = CustomData_get_layer_n(&dm->faceData, CD_MTFACE, l);
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mf += i;
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copy_v2_v2(df1->uv[0], mf->uv[c0]);
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copy_v2_v2(df1->uv[1], mf->uv[c1]);
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INT_UV(df1->uv[2], c1, c2);
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INT_UV(df1->uv[3], c0, c3);
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INT_UV(df2->uv[0], c0, c3);
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INT_UV(df2->uv[1], c1, c2);
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copy_v2_v2(df2->uv[2], mf->uv[c2]);
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copy_v2_v2(df2->uv[3], mf->uv[c3]);
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}
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}
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static void remap_faces_15(DerivedMesh *dm, DerivedMesh *split, MFace *mf, int *facepa, int *vertpa, int i, EdgeHash *eh, int cur, int v1, int v2, int v3, int v4)
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{
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MFace *df1 = get_dface(dm, split, cur, i, mf);
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MFace *df2 = get_dface(dm, split, cur + 1, i, mf);
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MFace *df3 = get_dface(dm, split, cur + 2, i, mf);
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MFace *df4 = get_dface(dm, split, cur + 3, i, mf);
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facepa[cur] = vertpa[v1];
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df1->v1 = v1;
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df1->v2 = GET_ES(v1, v2);
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df1->v3 = GET_ES(v1, v3);
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df1->v4 = GET_ES(v1, v4);
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df1->flag |= ME_FACE_SEL;
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facepa[cur + 1] = vertpa[v2];
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df2->v1 = GET_ES(v1, v2);
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df2->v2 = v2;
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df2->v3 = GET_ES(v2, v3);
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df2->v4 = GET_ES(v1, v3);
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df2->flag |= ME_FACE_SEL;
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facepa[cur + 2] = vertpa[v3];
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df3->v1 = GET_ES(v1, v3);
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df3->v2 = GET_ES(v2, v3);
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df3->v3 = v3;
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df3->v4 = GET_ES(v3, v4);
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df3->flag |= ME_FACE_SEL;
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facepa[cur + 3] = vertpa[v4];
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df4->v1 = GET_ES(v1, v4);
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df4->v2 = GET_ES(v1, v3);
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df4->v3 = GET_ES(v3, v4);
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df4->v4 = v4;
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df4->flag |= ME_FACE_SEL;
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}
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static void remap_uvs_15(DerivedMesh *dm, DerivedMesh *split, int numlayer, int i, int cur, int c0, int c1, int c2, int c3)
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{
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MTFace *mf, *df1, *df2, *df3, *df4;
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int l;
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for (l = 0; l < numlayer; l++) {
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mf = CustomData_get_layer_n(&split->faceData, CD_MTFACE, l);
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df1 = mf + cur;
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df2 = df1 + 1;
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df3 = df1 + 2;
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df4 = df1 + 3;
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mf = CustomData_get_layer_n(&dm->faceData, CD_MTFACE, l);
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mf += i;
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copy_v2_v2(df1->uv[0], mf->uv[c0]);
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INT_UV(df1->uv[1], c0, c1);
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INT_UV(df1->uv[2], c0, c2);
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INT_UV(df1->uv[3], c0, c3);
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INT_UV(df2->uv[0], c0, c1);
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copy_v2_v2(df2->uv[1], mf->uv[c1]);
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INT_UV(df2->uv[2], c1, c2);
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INT_UV(df2->uv[3], c0, c2);
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INT_UV(df3->uv[0], c0, c2);
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INT_UV(df3->uv[1], c1, c2);
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copy_v2_v2(df3->uv[2], mf->uv[c2]);
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INT_UV(df3->uv[3], c2, c3);
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INT_UV(df4->uv[0], c0, c3);
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INT_UV(df4->uv[1], c0, c2);
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INT_UV(df4->uv[2], c2, c3);
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copy_v2_v2(df4->uv[3], mf->uv[c3]);
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}
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}
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static void remap_faces_7_11_13_14(DerivedMesh *dm, DerivedMesh *split, MFace *mf, int *facepa, int *vertpa, int i, EdgeHash *eh, int cur, int v1, int v2, int v3, int v4)
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{
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MFace *df1 = get_dface(dm, split, cur, i, mf);
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MFace *df2 = get_dface(dm, split, cur + 1, i, mf);
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MFace *df3 = get_dface(dm, split, cur + 2, i, mf);
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facepa[cur] = vertpa[v1];
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df1->v1 = v1;
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df1->v2 = GET_ES(v1, v2);
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df1->v3 = GET_ES(v2, v3);
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df1->v4 = GET_ES(v1, v4);
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df1->flag |= ME_FACE_SEL;
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facepa[cur + 1] = vertpa[v2];
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df2->v1 = GET_ES(v1, v2);
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df2->v2 = v2;
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df2->v3 = GET_ES(v2, v3);
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df2->v4 = 0;
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df2->flag &= ~ME_FACE_SEL;
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facepa[cur + 2] = vertpa[v4];
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df3->v1 = GET_ES(v1, v4);
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df3->v2 = GET_ES(v2, v3);
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df3->v3 = v3;
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df3->v4 = v4;
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df3->flag |= ME_FACE_SEL;
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}
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static void remap_uvs_7_11_13_14(DerivedMesh *dm, DerivedMesh *split, int numlayer, int i, int cur, int c0, int c1, int c2, int c3)
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{
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MTFace *mf, *df1, *df2, *df3;
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int l;
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for (l = 0; l < numlayer; l++) {
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mf = CustomData_get_layer_n(&split->faceData, CD_MTFACE, l);
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df1 = mf + cur;
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df2 = df1 + 1;
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df3 = df1 + 2;
|
|
mf = CustomData_get_layer_n(&dm->faceData, CD_MTFACE, l);
|
|
mf += i;
|
|
|
|
copy_v2_v2(df1->uv[0], mf->uv[c0]);
|
|
INT_UV(df1->uv[1], c0, c1);
|
|
INT_UV(df1->uv[2], c1, c2);
|
|
INT_UV(df1->uv[3], c0, c3);
|
|
|
|
INT_UV(df2->uv[0], c0, c1);
|
|
copy_v2_v2(df2->uv[1], mf->uv[c1]);
|
|
INT_UV(df2->uv[2], c1, c2);
|
|
|
|
INT_UV(df3->uv[0], c0, c3);
|
|
INT_UV(df3->uv[1], c1, c2);
|
|
copy_v2_v2(df3->uv[2], mf->uv[c2]);
|
|
copy_v2_v2(df3->uv[3], mf->uv[c3]);
|
|
}
|
|
}
|
|
|
|
static void remap_faces_19_21_22(DerivedMesh *dm, DerivedMesh *split, MFace *mf, int *facepa, int *vertpa, int i, EdgeHash *eh, int cur, int v1, int v2, int v3)
|
|
{
|
|
MFace *df1 = get_dface(dm, split, cur, i, mf);
|
|
MFace *df2 = get_dface(dm, split, cur + 1, i, mf);
|
|
|
|
facepa[cur] = vertpa[v1];
|
|
df1->v1 = v1;
|
|
df1->v2 = GET_ES(v1, v2);
|
|
df1->v3 = GET_ES(v1, v3);
|
|
df1->v4 = 0;
|
|
df1->flag &= ~ME_FACE_SEL;
|
|
|
|
facepa[cur + 1] = vertpa[v2];
|
|
df2->v1 = GET_ES(v1, v2);
|
|
df2->v2 = v2;
|
|
df2->v3 = v3;
|
|
df2->v4 = GET_ES(v1, v3);
|
|
df2->flag |= ME_FACE_SEL;
|
|
}
|
|
|
|
static void remap_uvs_19_21_22(DerivedMesh *dm, DerivedMesh *split, int numlayer, int i, int cur, int c0, int c1, int c2)
|
|
{
|
|
MTFace *mf, *df1, *df2;
|
|
int l;
|
|
|
|
for (l = 0; l < numlayer; l++) {
|
|
mf = CustomData_get_layer_n(&split->faceData, CD_MTFACE, l);
|
|
df1 = mf + cur;
|
|
df2 = df1 + 1;
|
|
mf = CustomData_get_layer_n(&dm->faceData, CD_MTFACE, l);
|
|
mf += i;
|
|
|
|
copy_v2_v2(df1->uv[0], mf->uv[c0]);
|
|
INT_UV(df1->uv[1], c0, c1);
|
|
INT_UV(df1->uv[2], c0, c2);
|
|
|
|
INT_UV(df2->uv[0], c0, c1);
|
|
copy_v2_v2(df2->uv[1], mf->uv[c1]);
|
|
copy_v2_v2(df2->uv[2], mf->uv[c2]);
|
|
INT_UV(df2->uv[3], c0, c2);
|
|
}
|
|
}
|
|
|
|
static void remap_faces_23(DerivedMesh *dm, DerivedMesh *split, MFace *mf, int *facepa, int *vertpa, int i, EdgeHash *eh, int cur, int v1, int v2, int v3)
|
|
{
|
|
MFace *df1 = get_dface(dm, split, cur, i, mf);
|
|
MFace *df2 = get_dface(dm, split, cur + 1, i, mf);
|
|
MFace *df3 = get_dface(dm, split, cur + 2, i, mf);
|
|
|
|
facepa[cur] = vertpa[v1];
|
|
df1->v1 = v1;
|
|
df1->v2 = GET_ES(v1, v2);
|
|
df1->v3 = GET_ES(v2, v3);
|
|
df1->v4 = GET_ES(v1, v3);
|
|
df1->flag |= ME_FACE_SEL;
|
|
|
|
facepa[cur + 1] = vertpa[v2];
|
|
df2->v1 = GET_ES(v1, v2);
|
|
df2->v2 = v2;
|
|
df2->v3 = GET_ES(v2, v3);
|
|
df2->v4 = 0;
|
|
df2->flag &= ~ME_FACE_SEL;
|
|
|
|
facepa[cur + 2] = vertpa[v3];
|
|
df3->v1 = GET_ES(v1, v3);
|
|
df3->v2 = GET_ES(v2, v3);
|
|
df3->v3 = v3;
|
|
df3->v4 = 0;
|
|
df3->flag &= ~ME_FACE_SEL;
|
|
}
|
|
|
|
static void remap_uvs_23(DerivedMesh *dm, DerivedMesh *split, int numlayer, int i, int cur, int c0, int c1, int c2)
|
|
{
|
|
MTFace *mf, *df1, *df2;
|
|
int l;
|
|
|
|
for (l = 0; l < numlayer; l++) {
|
|
mf = CustomData_get_layer_n(&split->faceData, CD_MTFACE, l);
|
|
df1 = mf + cur;
|
|
df2 = df1 + 1;
|
|
mf = CustomData_get_layer_n(&dm->faceData, CD_MTFACE, l);
|
|
mf += i;
|
|
|
|
copy_v2_v2(df1->uv[0], mf->uv[c0]);
|
|
INT_UV(df1->uv[1], c0, c1);
|
|
INT_UV(df1->uv[2], c1, c2);
|
|
INT_UV(df1->uv[3], c0, c2);
|
|
|
|
INT_UV(df2->uv[0], c0, c1);
|
|
copy_v2_v2(df2->uv[1], mf->uv[c1]);
|
|
INT_UV(df2->uv[2], c1, c2);
|
|
|
|
INT_UV(df2->uv[0], c0, c2);
|
|
INT_UV(df2->uv[1], c1, c2);
|
|
copy_v2_v2(df2->uv[2], mf->uv[c2]);
|
|
}
|
|
}
|
|
|
|
static DerivedMesh *cutEdges(ExplodeModifierData *emd, DerivedMesh *dm)
|
|
{
|
|
DerivedMesh *splitdm;
|
|
MFace *mf = NULL, *df1 = NULL;
|
|
MFace *mface = dm->getTessFaceArray(dm);
|
|
MVert *dupve, *mv;
|
|
EdgeHash *edgehash;
|
|
EdgeHashIterator *ehi;
|
|
int totvert = dm->getNumVerts(dm);
|
|
int totface = dm->getNumTessFaces(dm);
|
|
|
|
int *facesplit = MEM_callocN(sizeof(int) * totface, "explode_facesplit");
|
|
int *vertpa = MEM_callocN(sizeof(int) * totvert, "explode_vertpa2");
|
|
int *facepa = emd->facepa;
|
|
int *fs, totesplit = 0, totfsplit = 0, curdupface = 0;
|
|
int i, v1, v2, v3, v4, esplit,
|
|
v[4] = {0, 0, 0, 0}, /* To quite gcc barking... */
|
|
uv[4] = {0, 0, 0, 0}; /* To quite gcc barking... */
|
|
int numlayer;
|
|
unsigned int ed_v1, ed_v2;
|
|
|
|
edgehash = BLI_edgehash_new(__func__);
|
|
|
|
/* recreate vertpa from facepa calculation */
|
|
for (i = 0, mf = mface; i < totface; i++, mf++) {
|
|
vertpa[mf->v1] = facepa[i];
|
|
vertpa[mf->v2] = facepa[i];
|
|
vertpa[mf->v3] = facepa[i];
|
|
if (mf->v4)
|
|
vertpa[mf->v4] = facepa[i];
|
|
}
|
|
|
|
/* mark edges for splitting and how to split faces */
|
|
for (i = 0, mf = mface, fs = facesplit; i < totface; i++, mf++, fs++) {
|
|
v1 = vertpa[mf->v1];
|
|
v2 = vertpa[mf->v2];
|
|
v3 = vertpa[mf->v3];
|
|
|
|
if (v1 != v2) {
|
|
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v2, NULL);
|
|
(*fs) |= 1;
|
|
}
|
|
|
|
if (v2 != v3) {
|
|
BLI_edgehash_reinsert(edgehash, mf->v2, mf->v3, NULL);
|
|
(*fs) |= 2;
|
|
}
|
|
|
|
if (mf->v4) {
|
|
v4 = vertpa[mf->v4];
|
|
|
|
if (v3 != v4) {
|
|
BLI_edgehash_reinsert(edgehash, mf->v3, mf->v4, NULL);
|
|
(*fs) |= 4;
|
|
}
|
|
|
|
if (v1 != v4) {
|
|
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v4, NULL);
|
|
(*fs) |= 8;
|
|
}
|
|
|
|
/* mark center vertex as a fake edge split */
|
|
if (*fs == 15)
|
|
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v3, NULL);
|
|
}
|
|
else {
|
|
(*fs) |= 16; /* mark face as tri */
|
|
|
|
if (v1 != v3) {
|
|
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v3, NULL);
|
|
(*fs) |= 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* count splits & create indexes for new verts */
|
|
ehi = BLI_edgehashIterator_new(edgehash);
|
|
totesplit = totvert;
|
|
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
|
|
BLI_edgehashIterator_setValue(ehi, SET_INT_IN_POINTER(totesplit));
|
|
totesplit++;
|
|
}
|
|
BLI_edgehashIterator_free(ehi);
|
|
|
|
/* count new faces due to splitting */
|
|
for (i = 0, fs = facesplit; i < totface; i++, fs++)
|
|
totfsplit += add_faces[*fs];
|
|
|
|
splitdm = CDDM_from_template_ex(
|
|
dm, totesplit, 0, totface + totfsplit, 0, 0,
|
|
CD_MASK_DERIVEDMESH | CD_MASK_FACECORNERS);
|
|
numlayer = CustomData_number_of_layers(&splitdm->faceData, CD_MTFACE);
|
|
|
|
/* copy new faces & verts (is it really this painful with custom data??) */
|
|
for (i = 0; i < totvert; i++) {
|
|
MVert source;
|
|
MVert *dest;
|
|
dm->getVert(dm, i, &source);
|
|
dest = CDDM_get_vert(splitdm, i);
|
|
|
|
DM_copy_vert_data(dm, splitdm, i, i, 1);
|
|
*dest = source;
|
|
}
|
|
|
|
/* override original facepa (original pointer is saved in caller function) */
|
|
|
|
/* BMESH_TODO, (totfsplit * 2) over allocation is used since the quads are
|
|
* later interpreted as tri's, for this to work right I think we probably
|
|
* have to stop using tessface - campbell */
|
|
|
|
facepa = MEM_callocN(sizeof(int) * (totface + (totfsplit * 2)), "explode_facepa");
|
|
//memcpy(facepa, emd->facepa, totface*sizeof(int));
|
|
emd->facepa = facepa;
|
|
|
|
/* create new verts */
|
|
ehi = BLI_edgehashIterator_new(edgehash);
|
|
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
|
|
BLI_edgehashIterator_getKey(ehi, &ed_v1, &ed_v2);
|
|
esplit = GET_INT_FROM_POINTER(BLI_edgehashIterator_getValue(ehi));
|
|
mv = CDDM_get_vert(splitdm, ed_v2);
|
|
dupve = CDDM_get_vert(splitdm, esplit);
|
|
|
|
DM_copy_vert_data(splitdm, splitdm, ed_v2, esplit, 1);
|
|
|
|
*dupve = *mv;
|
|
|
|
mv = CDDM_get_vert(splitdm, ed_v1);
|
|
|
|
mid_v3_v3v3(dupve->co, dupve->co, mv->co);
|
|
}
|
|
BLI_edgehashIterator_free(ehi);
|
|
|
|
/* create new faces */
|
|
curdupface = 0; //=totface;
|
|
//curdupin=totesplit;
|
|
for (i = 0, fs = facesplit; i < totface; i++, fs++) {
|
|
mf = dm->getTessFaceData(dm, i, CD_MFACE);
|
|
|
|
switch (*fs) {
|
|
case 3:
|
|
case 10:
|
|
case 11:
|
|
case 15:
|
|
SET_VERTS(1, 2, 3, 4);
|
|
break;
|
|
case 5:
|
|
case 6:
|
|
case 7:
|
|
SET_VERTS(2, 3, 4, 1);
|
|
break;
|
|
case 9:
|
|
case 13:
|
|
SET_VERTS(4, 1, 2, 3);
|
|
break;
|
|
case 12:
|
|
case 14:
|
|
SET_VERTS(3, 4, 1, 2);
|
|
break;
|
|
case 21:
|
|
case 23:
|
|
SET_VERTS(1, 2, 3, 4);
|
|
break;
|
|
case 19:
|
|
SET_VERTS(2, 3, 1, 4);
|
|
break;
|
|
case 22:
|
|
SET_VERTS(3, 1, 2, 4);
|
|
break;
|
|
}
|
|
|
|
switch (*fs) {
|
|
case 3:
|
|
case 6:
|
|
case 9:
|
|
case 12:
|
|
remap_faces_3_6_9_12(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
|
|
if (numlayer)
|
|
remap_uvs_3_6_9_12(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
|
|
break;
|
|
case 5:
|
|
case 10:
|
|
remap_faces_5_10(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
|
|
if (numlayer)
|
|
remap_uvs_5_10(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
|
|
break;
|
|
case 15:
|
|
remap_faces_15(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
|
|
if (numlayer)
|
|
remap_uvs_15(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
|
|
break;
|
|
case 7:
|
|
case 11:
|
|
case 13:
|
|
case 14:
|
|
remap_faces_7_11_13_14(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
|
|
if (numlayer)
|
|
remap_uvs_7_11_13_14(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
|
|
break;
|
|
case 19:
|
|
case 21:
|
|
case 22:
|
|
remap_faces_19_21_22(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2]);
|
|
if (numlayer)
|
|
remap_uvs_19_21_22(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2]);
|
|
break;
|
|
case 23:
|
|
remap_faces_23(dm, splitdm, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2]);
|
|
if (numlayer)
|
|
remap_uvs_23(dm, splitdm, numlayer, i, curdupface, uv[0], uv[1], uv[2]);
|
|
break;
|
|
case 0:
|
|
case 16:
|
|
df1 = get_dface(dm, splitdm, curdupface, i, mf);
|
|
facepa[curdupface] = vertpa[mf->v1];
|
|
|
|
if (df1->v4)
|
|
df1->flag |= ME_FACE_SEL;
|
|
else
|
|
df1->flag &= ~ME_FACE_SEL;
|
|
break;
|
|
}
|
|
|
|
curdupface += add_faces[*fs] + 1;
|
|
}
|
|
|
|
for (i = 0; i < curdupface; i++) {
|
|
mf = CDDM_get_tessface(splitdm, i);
|
|
test_index_face(mf, &splitdm->faceData, i, ((mf->flag & ME_FACE_SEL) ? 4 : 3));
|
|
}
|
|
|
|
BLI_edgehash_free(edgehash, NULL);
|
|
MEM_freeN(facesplit);
|
|
MEM_freeN(vertpa);
|
|
|
|
CDDM_calc_edges_tessface(splitdm);
|
|
CDDM_tessfaces_to_faces(splitdm); /*builds ngon faces from tess (mface) faces*/
|
|
|
|
return splitdm;
|
|
}
|
|
static DerivedMesh *explodeMesh(ExplodeModifierData *emd,
|
|
ParticleSystemModifierData *psmd, Scene *scene, Object *ob,
|
|
DerivedMesh *to_explode)
|
|
{
|
|
DerivedMesh *explode, *dm = to_explode;
|
|
MFace *mf = NULL, *mface;
|
|
/* ParticleSettings *part=psmd->psys->part; */ /* UNUSED */
|
|
ParticleSimulationData sim = {NULL};
|
|
ParticleData *pa = NULL, *pars = psmd->psys->particles;
|
|
ParticleKey state, birth;
|
|
EdgeHash *vertpahash;
|
|
EdgeHashIterator *ehi;
|
|
float *vertco = NULL, imat[4][4];
|
|
float rot[4];
|
|
float cfra;
|
|
/* float timestep; */
|
|
const int *facepa = emd->facepa;
|
|
int totdup = 0, totvert = 0, totface = 0, totpart = 0, delface = 0;
|
|
int i, v, u;
|
|
unsigned int ed_v1, ed_v2, mindex = 0;
|
|
MTFace *mtface = NULL, *mtf;
|
|
|
|
totface = dm->getNumTessFaces(dm);
|
|
totvert = dm->getNumVerts(dm);
|
|
mface = dm->getTessFaceArray(dm);
|
|
totpart = psmd->psys->totpart;
|
|
|
|
sim.scene = scene;
|
|
sim.ob = ob;
|
|
sim.psys = psmd->psys;
|
|
sim.psmd = psmd;
|
|
|
|
/* timestep = psys_get_timestep(&sim); */
|
|
|
|
cfra = BKE_scene_frame_get(scene);
|
|
|
|
/* hash table for vertice <-> particle relations */
|
|
vertpahash = BLI_edgehash_new(__func__);
|
|
|
|
for (i = 0; i < totface; i++) {
|
|
if (facepa[i] != totpart) {
|
|
pa = pars + facepa[i];
|
|
|
|
if ((pa->alive == PARS_UNBORN && (emd->flag & eExplodeFlag_Unborn) == 0) ||
|
|
(pa->alive == PARS_ALIVE && (emd->flag & eExplodeFlag_Alive) == 0) ||
|
|
(pa->alive == PARS_DEAD && (emd->flag & eExplodeFlag_Dead) == 0))
|
|
{
|
|
delface++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* do mindex + totvert to ensure the vertex index to be the first
|
|
* with BLI_edgehashIterator_getKey */
|
|
if (facepa[i] == totpart || cfra < (pars + facepa[i])->time)
|
|
mindex = totvert + totpart;
|
|
else
|
|
mindex = totvert + facepa[i];
|
|
|
|
mf = &mface[i];
|
|
|
|
/* set face vertices to exist in particle group */
|
|
BLI_edgehash_reinsert(vertpahash, mf->v1, mindex, NULL);
|
|
BLI_edgehash_reinsert(vertpahash, mf->v2, mindex, NULL);
|
|
BLI_edgehash_reinsert(vertpahash, mf->v3, mindex, NULL);
|
|
if (mf->v4)
|
|
BLI_edgehash_reinsert(vertpahash, mf->v4, mindex, NULL);
|
|
}
|
|
|
|
/* make new vertice indexes & count total vertices after duplication */
|
|
ehi = BLI_edgehashIterator_new(vertpahash);
|
|
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
|
|
BLI_edgehashIterator_setValue(ehi, SET_INT_IN_POINTER(totdup));
|
|
totdup++;
|
|
}
|
|
BLI_edgehashIterator_free(ehi);
|
|
|
|
/* the final duplicated vertices */
|
|
explode = CDDM_from_template_ex(dm, totdup, 0, totface - delface, 0, 0, CD_MASK_DERIVEDMESH | CD_MASK_FACECORNERS);
|
|
mtface = CustomData_get_layer_named(&explode->faceData, CD_MTFACE, emd->uvname);
|
|
/*dupvert = CDDM_get_verts(explode);*/
|
|
|
|
/* getting back to object space */
|
|
invert_m4_m4(imat, ob->obmat);
|
|
|
|
psmd->psys->lattice_deform_data = psys_create_lattice_deform_data(&sim);
|
|
|
|
/* duplicate & displace vertices */
|
|
ehi = BLI_edgehashIterator_new(vertpahash);
|
|
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
|
|
MVert source;
|
|
MVert *dest;
|
|
|
|
/* get particle + vertex from hash */
|
|
BLI_edgehashIterator_getKey(ehi, &ed_v1, &ed_v2);
|
|
ed_v2 -= totvert;
|
|
v = GET_INT_FROM_POINTER(BLI_edgehashIterator_getValue(ehi));
|
|
|
|
dm->getVert(dm, ed_v1, &source);
|
|
dest = CDDM_get_vert(explode, v);
|
|
|
|
DM_copy_vert_data(dm, explode, ed_v1, v, 1);
|
|
*dest = source;
|
|
|
|
if (ed_v2 != totpart) {
|
|
/* get particle */
|
|
pa = pars + ed_v2;
|
|
|
|
psys_get_birth_coords(&sim, pa, &birth, 0, 0);
|
|
|
|
state.time = cfra;
|
|
psys_get_particle_state(&sim, ed_v2, &state, 1);
|
|
|
|
vertco = CDDM_get_vert(explode, v)->co;
|
|
mul_m4_v3(ob->obmat, vertco);
|
|
|
|
sub_v3_v3(vertco, birth.co);
|
|
|
|
/* apply rotation, size & location */
|
|
sub_qt_qtqt(rot, state.rot, birth.rot);
|
|
mul_qt_v3(rot, vertco);
|
|
|
|
if (emd->flag & eExplodeFlag_PaSize)
|
|
mul_v3_fl(vertco, pa->size);
|
|
|
|
add_v3_v3(vertco, state.co);
|
|
|
|
mul_m4_v3(imat, vertco);
|
|
}
|
|
}
|
|
BLI_edgehashIterator_free(ehi);
|
|
|
|
/*map new vertices to faces*/
|
|
for (i = 0, u = 0; i < totface; i++) {
|
|
MFace source;
|
|
int orig_v4;
|
|
|
|
if (facepa[i] != totpart) {
|
|
pa = pars + facepa[i];
|
|
|
|
if (pa->alive == PARS_UNBORN && (emd->flag & eExplodeFlag_Unborn) == 0) continue;
|
|
if (pa->alive == PARS_ALIVE && (emd->flag & eExplodeFlag_Alive) == 0) continue;
|
|
if (pa->alive == PARS_DEAD && (emd->flag & eExplodeFlag_Dead) == 0) continue;
|
|
}
|
|
|
|
dm->getTessFace(dm, i, &source);
|
|
mf = CDDM_get_tessface(explode, u);
|
|
|
|
orig_v4 = source.v4;
|
|
|
|
if (facepa[i] != totpart && cfra < pa->time)
|
|
mindex = totvert + totpart;
|
|
else
|
|
mindex = totvert + facepa[i];
|
|
|
|
source.v1 = edgecut_get(vertpahash, source.v1, mindex);
|
|
source.v2 = edgecut_get(vertpahash, source.v2, mindex);
|
|
source.v3 = edgecut_get(vertpahash, source.v3, mindex);
|
|
if (source.v4)
|
|
source.v4 = edgecut_get(vertpahash, source.v4, mindex);
|
|
|
|
DM_copy_tessface_data(dm, explode, i, u, 1);
|
|
|
|
*mf = source;
|
|
|
|
/* override uv channel for particle age */
|
|
if (mtface) {
|
|
float age = (cfra - pa->time) / pa->lifetime;
|
|
/* Clamp to this range to avoid flipping to the other side of the coordinates. */
|
|
CLAMP(age, 0.001f, 0.999f);
|
|
|
|
mtf = mtface + u;
|
|
|
|
mtf->uv[0][0] = mtf->uv[1][0] = mtf->uv[2][0] = mtf->uv[3][0] = age;
|
|
mtf->uv[0][1] = mtf->uv[1][1] = mtf->uv[2][1] = mtf->uv[3][1] = 0.5f;
|
|
}
|
|
|
|
test_index_face(mf, &explode->faceData, u, (orig_v4 ? 4 : 3));
|
|
u++;
|
|
}
|
|
|
|
/* cleanup */
|
|
BLI_edgehash_free(vertpahash, NULL);
|
|
|
|
/* finalization */
|
|
CDDM_calc_edges_tessface(explode);
|
|
CDDM_tessfaces_to_faces(explode);
|
|
explode->dirty |= DM_DIRTY_NORMALS;
|
|
|
|
if (psmd->psys->lattice_deform_data) {
|
|
end_latt_deform(psmd->psys->lattice_deform_data);
|
|
psmd->psys->lattice_deform_data = NULL;
|
|
}
|
|
|
|
return explode;
|
|
}
|
|
|
|
static ParticleSystemModifierData *findPrecedingParticlesystem(Object *ob, ModifierData *emd)
|
|
{
|
|
ModifierData *md;
|
|
ParticleSystemModifierData *psmd = NULL;
|
|
|
|
for (md = ob->modifiers.first; emd != md; md = md->next) {
|
|
if (md->type == eModifierType_ParticleSystem)
|
|
psmd = (ParticleSystemModifierData *) md;
|
|
}
|
|
return psmd;
|
|
}
|
|
static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
|
|
DerivedMesh *derivedData,
|
|
ModifierApplyFlag UNUSED(flag))
|
|
{
|
|
DerivedMesh *dm = derivedData;
|
|
ExplodeModifierData *emd = (ExplodeModifierData *) md;
|
|
ParticleSystemModifierData *psmd = findPrecedingParticlesystem(ob, md);
|
|
|
|
if (psmd) {
|
|
ParticleSystem *psys = psmd->psys;
|
|
|
|
if (psys == NULL || psys->totpart == 0) return derivedData;
|
|
if (psys->part == NULL || psys->particles == NULL) return derivedData;
|
|
if (psmd->dm_final == NULL) return derivedData;
|
|
|
|
DM_ensure_tessface(dm); /* BMESH - UNTIL MODIFIER IS UPDATED FOR MPoly */
|
|
|
|
/* 1. find faces to be exploded if needed */
|
|
if (emd->facepa == NULL ||
|
|
psmd->flag & eParticleSystemFlag_Pars ||
|
|
emd->flag & eExplodeFlag_CalcFaces ||
|
|
MEM_allocN_len(emd->facepa) / sizeof(int) != dm->getNumTessFaces(dm))
|
|
{
|
|
if (psmd->flag & eParticleSystemFlag_Pars)
|
|
psmd->flag &= ~eParticleSystemFlag_Pars;
|
|
|
|
if (emd->flag & eExplodeFlag_CalcFaces)
|
|
emd->flag &= ~eExplodeFlag_CalcFaces;
|
|
|
|
createFacepa(emd, psmd, derivedData);
|
|
}
|
|
/* 2. create new mesh */
|
|
if (emd->flag & eExplodeFlag_EdgeCut) {
|
|
int *facepa = emd->facepa;
|
|
DerivedMesh *splitdm = cutEdges(emd, dm);
|
|
DerivedMesh *explode = explodeMesh(emd, psmd, md->scene, ob, splitdm);
|
|
|
|
MEM_freeN(emd->facepa);
|
|
emd->facepa = facepa;
|
|
splitdm->release(splitdm);
|
|
return explode;
|
|
}
|
|
else
|
|
return explodeMesh(emd, psmd, md->scene, ob, derivedData);
|
|
}
|
|
return derivedData;
|
|
}
|
|
|
|
|
|
ModifierTypeInfo modifierType_Explode = {
|
|
/* name */ "Explode",
|
|
/* structName */ "ExplodeModifierData",
|
|
/* structSize */ sizeof(ExplodeModifierData),
|
|
/* type */ eModifierTypeType_Constructive,
|
|
/* flags */ eModifierTypeFlag_AcceptsMesh,
|
|
/* copyData */ copyData,
|
|
/* deformVerts */ NULL,
|
|
/* deformMatrices */ NULL,
|
|
/* deformVertsEM */ NULL,
|
|
/* deformMatricesEM */ NULL,
|
|
/* applyModifier */ applyModifier,
|
|
/* applyModifierEM */ NULL,
|
|
/* initData */ initData,
|
|
/* requiredDataMask */ requiredDataMask,
|
|
/* freeData */ freeData,
|
|
/* isDisabled */ NULL,
|
|
/* updateDepsgraph */ NULL,
|
|
/* dependsOnTime */ dependsOnTime,
|
|
/* dependsOnNormals */ NULL,
|
|
/* foreachObjectLink */ NULL,
|
|
/* foreachIDLink */ NULL,
|
|
/* foreachTexLink */ NULL,
|
|
};
|