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path: root/source/blender/modifiers/intern/MOD_particleinstance.c
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Diffstat (limited to 'source/blender/modifiers/intern/MOD_particleinstance.c')
-rw-r--r--source/blender/modifiers/intern/MOD_particleinstance.c470
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diff --git a/source/blender/modifiers/intern/MOD_particleinstance.c b/source/blender/modifiers/intern/MOD_particleinstance.c
deleted file mode 100644
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--- a/source/blender/modifiers/intern/MOD_particleinstance.c
+++ /dev/null
@@ -1,470 +0,0 @@
-/*
- * ***** 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,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2005 by the Blender Foundation.
- * All rights reserved.
- *
- * Contributor(s): Daniel Dunbar
- * Ton Roosendaal,
- * Ben Batt,
- * Brecht Van Lommel,
- * Campbell Barton
- *
- * ***** END GPL LICENSE BLOCK *****
- *
- */
-
-/** \file blender/modifiers/intern/MOD_particleinstance.c
- * \ingroup modifiers
- */
-
-
-#include "DNA_meshdata_types.h"
-
-#include "MEM_guardedalloc.h"
-
-#include "BLI_math.h"
-#include "BLI_listbase.h"
-#include "BLI_rand.h"
-#include "BLI_utildefines.h"
-
-#include "BKE_cdderivedmesh.h"
-#include "BKE_effect.h"
-#include "BKE_global.h"
-#include "BKE_lattice.h"
-#include "BKE_library_query.h"
-#include "BKE_modifier.h"
-#include "BKE_particle.h"
-#include "BKE_pointcache.h"
-
-#include "depsgraph_private.h"
-#include "DEG_depsgraph_build.h"
-
-static void initData(ModifierData *md)
-{
- ParticleInstanceModifierData *pimd = (ParticleInstanceModifierData *) md;
-
- pimd->flag = eParticleInstanceFlag_Parents | eParticleInstanceFlag_Unborn |
- eParticleInstanceFlag_Alive | eParticleInstanceFlag_Dead;
- pimd->psys = 1;
- pimd->position = 1.0f;
- pimd->axis = 2;
-
-}
-static void copyData(ModifierData *md, ModifierData *target)
-{
-#if 0
- ParticleInstanceModifierData *pimd = (ParticleInstanceModifierData *) md;
- ParticleInstanceModifierData *tpimd = (ParticleInstanceModifierData *) target;
-#endif
- modifier_copyData_generic(md, target);
-}
-
-static bool isDisabled(ModifierData *md, int useRenderParams)
-{
- ParticleInstanceModifierData *pimd = (ParticleInstanceModifierData *)md;
- ParticleSystem *psys;
- ModifierData *ob_md;
-
- if (!pimd->ob)
- return true;
-
- psys = BLI_findlink(&pimd->ob->particlesystem, pimd->psys - 1);
- if (psys == NULL)
- return true;
-
- /* If the psys modifier is disabled we cannot use its data.
- * First look up the psys modifier from the object, then check if it is enabled.
- */
- for (ob_md = pimd->ob->modifiers.first; ob_md; ob_md = ob_md->next) {
- if (ob_md->type == eModifierType_ParticleSystem) {
- ParticleSystemModifierData *psmd = (ParticleSystemModifierData *)ob_md;
- if (psmd->psys == psys) {
- int required_mode;
-
- if (useRenderParams) required_mode = eModifierMode_Render;
- else required_mode = eModifierMode_Realtime;
-
- if (!modifier_isEnabled(md->scene, ob_md, required_mode))
- return true;
-
- break;
- }
- }
- }
-
- return false;
-}
-
-
-static void updateDepgraph(ModifierData *md, DagForest *forest,
- struct Main *UNUSED(bmain),
- struct Scene *UNUSED(scene),
- Object *UNUSED(ob),
- DagNode *obNode)
-{
- ParticleInstanceModifierData *pimd = (ParticleInstanceModifierData *) md;
-
- if (pimd->ob) {
- DagNode *curNode = dag_get_node(forest, pimd->ob);
-
- dag_add_relation(forest, curNode, obNode,
- DAG_RL_DATA_DATA | DAG_RL_OB_DATA,
- "Particle Instance Modifier");
- }
-}
-
-static void updateDepsgraph(ModifierData *md,
- struct Main *UNUSED(bmain),
- struct Scene *UNUSED(scene),
- Object *UNUSED(ob),
- struct DepsNodeHandle *node)
-{
- ParticleInstanceModifierData *pimd = (ParticleInstanceModifierData *) md;
- if (pimd->ob != NULL) {
- DEG_add_object_relation(node, pimd->ob, DEG_OB_COMP_TRANSFORM, "Particle Instance Modifier");
- }
-}
-
-static void foreachObjectLink(ModifierData *md, Object *ob,
- ObjectWalkFunc walk, void *userData)
-{
- ParticleInstanceModifierData *pimd = (ParticleInstanceModifierData *) md;
-
- walk(userData, ob, &pimd->ob, IDWALK_NOP);
-}
-
-static int particle_skip(ParticleInstanceModifierData *pimd, ParticleSystem *psys, int p)
-{
- ParticleData *pa;
-
- if (pimd->flag & eParticleInstanceFlag_Parents) {
- if (p >= psys->totpart) {
- if (psys->part->childtype == PART_CHILD_PARTICLES) {
- pa = psys->particles + (psys->child + p - psys->totpart)->parent;
- }
- else {
- pa = NULL;
- }
- }
- else {
- pa = psys->particles + p;
- }
- }
- else {
- if (psys->part->childtype == PART_CHILD_PARTICLES) {
- pa = psys->particles + (psys->child + p)->parent;
- }
- else {
- pa = NULL;
- }
- }
-
- if (pa) {
- if (pa->alive == PARS_UNBORN && (pimd->flag & eParticleInstanceFlag_Unborn) == 0) return 1;
- if (pa->alive == PARS_ALIVE && (pimd->flag & eParticleInstanceFlag_Alive) == 0) return 1;
- if (pa->alive == PARS_DEAD && (pimd->flag & eParticleInstanceFlag_Dead) == 0) return 1;
- }
-
- return 0;
-}
-
-static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
- DerivedMesh *derivedData,
- ModifierApplyFlag UNUSED(flag))
-{
- DerivedMesh *dm = derivedData, *result;
- ParticleInstanceModifierData *pimd = (ParticleInstanceModifierData *) md;
- ParticleSimulationData sim;
- ParticleSystem *psys = NULL;
- ParticleData *pa = NULL;
- MPoly *mpoly, *orig_mpoly;
- MLoop *mloop, *orig_mloop;
- MVert *mvert, *orig_mvert;
- int totvert, totpoly, totloop /* , totedge */;
- int maxvert, maxpoly, maxloop, totpart = 0, first_particle = 0;
- int k, p, p_skip;
- short track = ob->trackflag % 3, trackneg, axis = pimd->axis;
- float max_co = 0.0, min_co = 0.0, temp_co[3];
- float *size = NULL;
-
- trackneg = ((ob->trackflag > 2) ? 1 : 0);
-
- if (pimd->ob == ob) {
- pimd->ob = NULL;
- return derivedData;
- }
-
- if (pimd->ob) {
- psys = BLI_findlink(&pimd->ob->particlesystem, pimd->psys - 1);
- if (psys == NULL || psys->totpart == 0)
- return derivedData;
- }
- else {
- return derivedData;
- }
-
- if (pimd->flag & eParticleInstanceFlag_Parents)
- totpart += psys->totpart;
- if (pimd->flag & eParticleInstanceFlag_Children) {
- if (totpart == 0)
- first_particle = psys->totpart;
- totpart += psys->totchild;
- }
-
- if (totpart == 0)
- return derivedData;
-
- sim.scene = md->scene;
- sim.ob = pimd->ob;
- sim.psys = psys;
- sim.psmd = psys_get_modifier(pimd->ob, psys);
-
- if (pimd->flag & eParticleInstanceFlag_UseSize) {
- float *si;
- si = size = MEM_callocN(totpart * sizeof(float), "particle size array");
-
- if (pimd->flag & eParticleInstanceFlag_Parents) {
- for (p = 0, pa = psys->particles; p < psys->totpart; p++, pa++, si++)
- *si = pa->size;
- }
-
- if (pimd->flag & eParticleInstanceFlag_Children) {
- ChildParticle *cpa = psys->child;
-
- for (p = 0; p < psys->totchild; p++, cpa++, si++) {
- *si = psys_get_child_size(psys, cpa, 0.0f, NULL);
- }
- }
- }
-
- totvert = dm->getNumVerts(dm);
- totpoly = dm->getNumPolys(dm);
- totloop = dm->getNumLoops(dm);
- /* totedge = dm->getNumEdges(dm); */ /* UNUSED */
-
- /* count particles */
- maxvert = 0;
- maxpoly = 0;
- maxloop = 0;
-
- for (p = 0; p < totpart; p++) {
- if (particle_skip(pimd, psys, p))
- continue;
-
- maxvert += totvert;
- maxpoly += totpoly;
- maxloop += totloop;
- }
-
- psys->lattice_deform_data = psys_create_lattice_deform_data(&sim);
-
- if (psys->flag & (PSYS_HAIR_DONE | PSYS_KEYED) || psys->pointcache->flag & PTCACHE_BAKED) {
- float min[3], max[3];
- INIT_MINMAX(min, max);
- dm->getMinMax(dm, min, max);
- min_co = min[track];
- max_co = max[track];
- }
-
- result = CDDM_from_template(dm, maxvert, 0, 0, maxloop, maxpoly);
-
- mvert = result->getVertArray(result);
- orig_mvert = dm->getVertArray(dm);
-
- mpoly = result->getPolyArray(result);
- orig_mpoly = dm->getPolyArray(dm);
- mloop = result->getLoopArray(result);
- orig_mloop = dm->getLoopArray(dm);
-
- for (p = 0, p_skip = 0; p < totpart; p++) {
- float prev_dir[3];
- float frame[4]; /* frame orientation quaternion */
-
- /* skip particle? */
- if (particle_skip(pimd, psys, p))
- continue;
-
- /* set vertices coordinates */
- for (k = 0; k < totvert; k++) {
- ParticleKey state;
- MVert *inMV;
- MVert *mv = mvert + p_skip * totvert + k;
-
- inMV = orig_mvert + k;
- DM_copy_vert_data(dm, result, k, p_skip * totvert + k, 1);
- *mv = *inMV;
-
- /*change orientation based on object trackflag*/
- copy_v3_v3(temp_co, mv->co);
- mv->co[axis] = temp_co[track];
- mv->co[(axis + 1) % 3] = temp_co[(track + 1) % 3];
- mv->co[(axis + 2) % 3] = temp_co[(track + 2) % 3];
-
- /* get particle state */
- if ((psys->flag & (PSYS_HAIR_DONE | PSYS_KEYED) || psys->pointcache->flag & PTCACHE_BAKED) &&
- (pimd->flag & eParticleInstanceFlag_Path))
- {
- float ran = 0.0f;
- if (pimd->random_position != 0.0f) {
- ran = pimd->random_position * BLI_hash_frand(psys->seed + p);
- }
-
- if (pimd->flag & eParticleInstanceFlag_KeepShape) {
- state.time = pimd->position * (1.0f - ran);
- }
- else {
- state.time = (mv->co[axis] - min_co) / (max_co - min_co) * pimd->position * (1.0f - ran);
-
- if (trackneg)
- state.time = 1.0f - state.time;
-
- mv->co[axis] = 0.0;
- }
-
- psys_get_particle_on_path(&sim, first_particle + p, &state, 1);
-
- normalize_v3(state.vel);
-
- /* Incrementally Rotating Frame (Bishop Frame) */
- if (k == 0) {
- float hairmat[4][4];
- float mat[3][3];
-
- if (first_particle + p < psys->totpart)
- pa = psys->particles + first_particle + p;
- else {
- ChildParticle *cpa = psys->child + (p - psys->totpart);
- pa = psys->particles + cpa->parent;
- }
- psys_mat_hair_to_global(sim.ob, sim.psmd->dm_final, sim.psys->part->from, pa, hairmat);
- copy_m3_m4(mat, hairmat);
- /* to quaternion */
- mat3_to_quat(frame, mat);
-
- /* note: direction is same as normal vector currently,
- * but best to keep this separate so the frame can be
- * rotated later if necessary
- */
- copy_v3_v3(prev_dir, state.vel);
- }
- else {
- float rot[4];
-
- /* incrementally rotate along bend direction */
- rotation_between_vecs_to_quat(rot, prev_dir, state.vel);
- mul_qt_qtqt(frame, rot, frame);
-
- copy_v3_v3(prev_dir, state.vel);
- }
-
- copy_qt_qt(state.rot, frame);
-#if 0
- /* Absolute Frame (Frenet Frame) */
- if (state.vel[axis] < -0.9999f || state.vel[axis] > 0.9999f) {
- unit_qt(state.rot);
- }
- else {
- float cross[3];
- float temp[3] = {0.0f, 0.0f, 0.0f};
- temp[axis] = 1.0f;
-
- cross_v3_v3v3(cross, temp, state.vel);
-
- /* state.vel[axis] is the only component surviving from a dot product with the axis */
- axis_angle_to_quat(state.rot, cross, saacos(state.vel[axis]));
- }
-#endif
- }
- else {
- state.time = -1.0;
- psys_get_particle_state(&sim, first_particle + p, &state, 1);
- }
-
- mul_qt_v3(state.rot, mv->co);
- if (pimd->flag & eParticleInstanceFlag_UseSize)
- mul_v3_fl(mv->co, size[p]);
- add_v3_v3(mv->co, state.co);
- }
-
- /* create polys and loops */
- for (k = 0; k < totpoly; k++) {
- MPoly *inMP = orig_mpoly + k;
- MPoly *mp = mpoly + p_skip * totpoly + k;
-
- DM_copy_poly_data(dm, result, k, p_skip * totpoly + k, 1);
- *mp = *inMP;
- mp->loopstart += p_skip * totloop;
-
- {
- MLoop *inML = orig_mloop + inMP->loopstart;
- MLoop *ml = mloop + mp->loopstart;
- int j = mp->totloop;
-
- DM_copy_loop_data(dm, result, inMP->loopstart, mp->loopstart, j);
- for (; j; j--, ml++, inML++) {
- ml->v = inML->v + (p_skip * totvert);
- }
- }
- }
-
- p_skip++;
- }
-
- CDDM_calc_edges(result);
-
- if (psys->lattice_deform_data) {
- end_latt_deform(psys->lattice_deform_data);
- psys->lattice_deform_data = NULL;
- }
-
- if (size)
- MEM_freeN(size);
-
- result->dirty |= DM_DIRTY_NORMALS;
-
- return result;
-}
-ModifierTypeInfo modifierType_ParticleInstance = {
- /* name */ "ParticleInstance",
- /* structName */ "ParticleInstanceModifierData",
- /* structSize */ sizeof(ParticleInstanceModifierData),
- /* type */ eModifierTypeType_Constructive,
- /* flags */ eModifierTypeFlag_AcceptsMesh |
- eModifierTypeFlag_SupportsMapping |
- eModifierTypeFlag_SupportsEditmode |
- eModifierTypeFlag_EnableInEditmode,
-
- /* copyData */ copyData,
- /* deformVerts */ NULL,
- /* deformMatrices */ NULL,
- /* deformVertsEM */ NULL,
- /* deformMatricesEM */ NULL,
- /* applyModifier */ applyModifier,
- /* applyModifierEM */ NULL,
- /* initData */ initData,
- /* requiredDataMask */ NULL,
- /* freeData */ NULL,
- /* isDisabled */ isDisabled,
- /* updateDepgraph */ updateDepgraph,
- /* updateDepsgraph */ updateDepsgraph,
- /* dependsOnTime */ NULL,
- /* dependsOnNormals */ NULL,
- /* foreachObjectLink */ foreachObjectLink,
- /* foreachIDLink */ NULL,
- /* foreachTexLink */ NULL,
-};
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