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path: root/source/blender/modifiers/intern/MOD_particlesystem.c
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Diffstat (limited to 'source/blender/modifiers/intern/MOD_particlesystem.c')
-rw-r--r--source/blender/modifiers/intern/MOD_particlesystem.c386
1 files changed, 194 insertions, 192 deletions
diff --git a/source/blender/modifiers/intern/MOD_particlesystem.c b/source/blender/modifiers/intern/MOD_particlesystem.c
index 5b3e104072c..8573ef14e09 100644
--- a/source/blender/modifiers/intern/MOD_particlesystem.c
+++ b/source/blender/modifiers/intern/MOD_particlesystem.c
@@ -21,7 +21,6 @@
* \ingroup modifiers
*/
-
#include <stddef.h>
#include "BLI_utildefines.h"
@@ -41,226 +40,229 @@
static void initData(ModifierData *md)
{
- ParticleSystemModifierData *psmd = (ParticleSystemModifierData *) md;
- psmd->psys = NULL;
- psmd->mesh_final = NULL;
- psmd->mesh_original = NULL;
- psmd->totdmvert = psmd->totdmedge = psmd->totdmface = 0;
+ ParticleSystemModifierData *psmd = (ParticleSystemModifierData *)md;
+ psmd->psys = NULL;
+ psmd->mesh_final = NULL;
+ psmd->mesh_original = NULL;
+ psmd->totdmvert = psmd->totdmedge = psmd->totdmface = 0;
}
static void freeData(ModifierData *md)
{
- ParticleSystemModifierData *psmd = (ParticleSystemModifierData *) md;
-
- if (psmd->mesh_final) {
- BKE_id_free(NULL, psmd->mesh_final);
- psmd->mesh_final = NULL;
- if (psmd->mesh_original) {
- BKE_id_free(NULL, psmd->mesh_original);
- psmd->mesh_original = NULL;
- }
- }
- psmd->totdmvert = psmd->totdmedge = psmd->totdmface = 0;
-
- /* ED_object_modifier_remove may have freed this first before calling
- * modifier_free (which calls this function) */
- if (psmd->psys)
- psmd->psys->flag |= PSYS_DELETE;
+ ParticleSystemModifierData *psmd = (ParticleSystemModifierData *)md;
+
+ if (psmd->mesh_final) {
+ BKE_id_free(NULL, psmd->mesh_final);
+ psmd->mesh_final = NULL;
+ if (psmd->mesh_original) {
+ BKE_id_free(NULL, psmd->mesh_original);
+ psmd->mesh_original = NULL;
+ }
+ }
+ psmd->totdmvert = psmd->totdmedge = psmd->totdmface = 0;
+
+ /* ED_object_modifier_remove may have freed this first before calling
+ * modifier_free (which calls this function) */
+ if (psmd->psys)
+ psmd->psys->flag |= PSYS_DELETE;
}
static void copyData(const ModifierData *md, ModifierData *target, const int flag)
{
#if 0
- const ParticleSystemModifierData *psmd = (const ParticleSystemModifierData *) md;
+ const ParticleSystemModifierData *psmd = (const ParticleSystemModifierData *)md;
#endif
- ParticleSystemModifierData *tpsmd = (ParticleSystemModifierData *) target;
+ ParticleSystemModifierData *tpsmd = (ParticleSystemModifierData *)target;
- modifier_copyData_generic(md, target, flag);
+ modifier_copyData_generic(md, target, flag);
- tpsmd->mesh_final = NULL;
- tpsmd->mesh_original = NULL;
- tpsmd->totdmvert = tpsmd->totdmedge = tpsmd->totdmface = 0;
+ tpsmd->mesh_final = NULL;
+ tpsmd->mesh_original = NULL;
+ tpsmd->totdmvert = tpsmd->totdmedge = tpsmd->totdmface = 0;
}
-static void requiredDataMask(Object *UNUSED(ob), ModifierData *md, CustomData_MeshMasks *r_cddata_masks)
+static void requiredDataMask(Object *UNUSED(ob),
+ ModifierData *md,
+ CustomData_MeshMasks *r_cddata_masks)
{
- ParticleSystemModifierData *psmd = (ParticleSystemModifierData *) md;
+ ParticleSystemModifierData *psmd = (ParticleSystemModifierData *)md;
- psys_emitter_customdata_mask(psmd->psys, r_cddata_masks);
+ psys_emitter_customdata_mask(psmd->psys, r_cddata_masks);
}
/* saves the current emitter state for a particle system and calculates particles */
-static void deformVerts(
- ModifierData *md, const ModifierEvalContext *ctx,
- Mesh *mesh,
- float (*vertexCos)[3],
- int numVerts)
+static void deformVerts(ModifierData *md,
+ const ModifierEvalContext *ctx,
+ Mesh *mesh,
+ float (*vertexCos)[3],
+ int numVerts)
{
- Mesh *mesh_src = mesh;
- ParticleSystemModifierData *psmd = (ParticleSystemModifierData *) md;
- ParticleSystem *psys = NULL;
- /* float cfra = BKE_scene_frame_get(md->scene); */ /* UNUSED */
-
- if (ctx->object->particlesystem.first)
- psys = psmd->psys;
- else
- return;
-
- if (!psys_check_enabled(ctx->object, psys, (ctx->flag & MOD_APPLY_RENDER) != 0))
- return;
-
- if (mesh_src == NULL) {
- mesh_src = MOD_deform_mesh_eval_get(ctx->object, NULL, NULL, vertexCos, numVerts, false, true);
- if (mesh_src == NULL) {
- return;
- }
- }
-
- /* clear old dm */
- bool had_mesh_final = (psmd->mesh_final != NULL);
- if (psmd->mesh_final) {
- BKE_id_free(NULL, psmd->mesh_final);
- psmd->mesh_final = NULL;
- if (psmd->mesh_original) {
- BKE_id_free(NULL, psmd->mesh_original);
- psmd->mesh_original = NULL;
- }
- }
- else if (psmd->flag & eParticleSystemFlag_file_loaded) {
- /* in file read mesh just wasn't saved in file so no need to reset everything */
- psmd->flag &= ~eParticleSystemFlag_file_loaded;
- if (psys->particles == NULL) {
- psys->recalc |= ID_RECALC_PSYS_RESET;
- }
- /* TODO(sergey): This is not how particles were working prior to copy on
- * write, but now evaluation is similar to case when one duplicates the
- * object. In that case particles were doing reset here. */
- psys->recalc |= ID_RECALC_PSYS_RESET;
- }
-
- /* make new mesh */
- psmd->mesh_final = BKE_mesh_copy_for_eval(mesh_src, false);
- BKE_mesh_apply_vert_coords(psmd->mesh_final, vertexCos);
- BKE_mesh_calc_normals(psmd->mesh_final);
-
- BKE_mesh_tessface_ensure(psmd->mesh_final);
-
- if (!psmd->mesh_final->runtime.deformed_only) {
- /* Get the original mesh from the object, this is what the particles
- * are attached to so in case of non-deform modifiers we need to remap
- * them to the final mesh (typically subdivision surfaces). */
- Mesh *mesh_original = NULL;
-
- if (ctx->object->type == OB_MESH) {
- BMEditMesh *em = BKE_editmesh_from_object(ctx->object);
-
- if (em) {
- /* In edit mode get directly from the edit mesh. */
- psmd->mesh_original = BKE_mesh_from_bmesh_for_eval_nomain(em->bm, NULL);
- }
- else {
- /* Otherwise get regular mesh. */
- mesh_original = ctx->object->data;
- }
- }
- else {
- mesh_original = mesh_src;
- }
-
- if (mesh_original) {
- /* Make a persistent copy of the mesh. We don't actually need
- * all this data, just some topology for remapping. Could be
- * optimized once. */
- psmd->mesh_original = BKE_mesh_copy_for_eval(mesh_original, false);
- }
-
- BKE_mesh_tessface_ensure(psmd->mesh_original);
- }
-
- if (mesh_src != psmd->mesh_final && mesh_src != mesh) {
- BKE_id_free(NULL, mesh_src);
- }
-
- /* Report change in mesh structure.
- * This is an unreliable check for the topology check, but allows some
- * handy configuration like emitting particles from inside particle
- * instance. */
- if (had_mesh_final &&
- (psmd->mesh_final->totvert != psmd->totdmvert ||
- psmd->mesh_final->totedge != psmd->totdmedge ||
- psmd->mesh_final->totface != psmd->totdmface))
- {
- psys->recalc |= ID_RECALC_PSYS_RESET;
- psmd->totdmvert = psmd->mesh_final->totvert;
- psmd->totdmedge = psmd->mesh_final->totedge;
- psmd->totdmface = psmd->mesh_final->totface;
- }
-
- if (!(ctx->object->transflag & OB_NO_PSYS_UPDATE)) {
- struct Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
- psmd->flag &= ~eParticleSystemFlag_psys_updated;
- particle_system_update(ctx->depsgraph, scene, ctx->object, psys, (ctx->flag & MOD_APPLY_RENDER) != 0);
- psmd->flag |= eParticleSystemFlag_psys_updated;
- }
-
- if (DEG_is_active(ctx->depsgraph)) {
- Object *object_orig = DEG_get_original_object(ctx->object);
- ModifierData *md_orig = modifiers_findByName(object_orig, psmd->modifier.name);
- BLI_assert(md_orig != NULL);
- ParticleSystemModifierData *psmd_orig = (ParticleSystemModifierData *) md_orig;
- psmd_orig->flag = psmd->flag;
- }
+ Mesh *mesh_src = mesh;
+ ParticleSystemModifierData *psmd = (ParticleSystemModifierData *)md;
+ ParticleSystem *psys = NULL;
+ /* float cfra = BKE_scene_frame_get(md->scene); */ /* UNUSED */
+
+ if (ctx->object->particlesystem.first)
+ psys = psmd->psys;
+ else
+ return;
+
+ if (!psys_check_enabled(ctx->object, psys, (ctx->flag & MOD_APPLY_RENDER) != 0))
+ return;
+
+ if (mesh_src == NULL) {
+ mesh_src = MOD_deform_mesh_eval_get(ctx->object, NULL, NULL, vertexCos, numVerts, false, true);
+ if (mesh_src == NULL) {
+ return;
+ }
+ }
+
+ /* clear old dm */
+ bool had_mesh_final = (psmd->mesh_final != NULL);
+ if (psmd->mesh_final) {
+ BKE_id_free(NULL, psmd->mesh_final);
+ psmd->mesh_final = NULL;
+ if (psmd->mesh_original) {
+ BKE_id_free(NULL, psmd->mesh_original);
+ psmd->mesh_original = NULL;
+ }
+ }
+ else if (psmd->flag & eParticleSystemFlag_file_loaded) {
+ /* in file read mesh just wasn't saved in file so no need to reset everything */
+ psmd->flag &= ~eParticleSystemFlag_file_loaded;
+ if (psys->particles == NULL) {
+ psys->recalc |= ID_RECALC_PSYS_RESET;
+ }
+ /* TODO(sergey): This is not how particles were working prior to copy on
+ * write, but now evaluation is similar to case when one duplicates the
+ * object. In that case particles were doing reset here. */
+ psys->recalc |= ID_RECALC_PSYS_RESET;
+ }
+
+ /* make new mesh */
+ psmd->mesh_final = BKE_mesh_copy_for_eval(mesh_src, false);
+ BKE_mesh_apply_vert_coords(psmd->mesh_final, vertexCos);
+ BKE_mesh_calc_normals(psmd->mesh_final);
+
+ BKE_mesh_tessface_ensure(psmd->mesh_final);
+
+ if (!psmd->mesh_final->runtime.deformed_only) {
+ /* Get the original mesh from the object, this is what the particles
+ * are attached to so in case of non-deform modifiers we need to remap
+ * them to the final mesh (typically subdivision surfaces). */
+ Mesh *mesh_original = NULL;
+
+ if (ctx->object->type == OB_MESH) {
+ BMEditMesh *em = BKE_editmesh_from_object(ctx->object);
+
+ if (em) {
+ /* In edit mode get directly from the edit mesh. */
+ psmd->mesh_original = BKE_mesh_from_bmesh_for_eval_nomain(em->bm, NULL);
+ }
+ else {
+ /* Otherwise get regular mesh. */
+ mesh_original = ctx->object->data;
+ }
+ }
+ else {
+ mesh_original = mesh_src;
+ }
+
+ if (mesh_original) {
+ /* Make a persistent copy of the mesh. We don't actually need
+ * all this data, just some topology for remapping. Could be
+ * optimized once. */
+ psmd->mesh_original = BKE_mesh_copy_for_eval(mesh_original, false);
+ }
+
+ BKE_mesh_tessface_ensure(psmd->mesh_original);
+ }
+
+ if (mesh_src != psmd->mesh_final && mesh_src != mesh) {
+ BKE_id_free(NULL, mesh_src);
+ }
+
+ /* Report change in mesh structure.
+ * This is an unreliable check for the topology check, but allows some
+ * handy configuration like emitting particles from inside particle
+ * instance. */
+ if (had_mesh_final && (psmd->mesh_final->totvert != psmd->totdmvert ||
+ psmd->mesh_final->totedge != psmd->totdmedge ||
+ psmd->mesh_final->totface != psmd->totdmface)) {
+ psys->recalc |= ID_RECALC_PSYS_RESET;
+ psmd->totdmvert = psmd->mesh_final->totvert;
+ psmd->totdmedge = psmd->mesh_final->totedge;
+ psmd->totdmface = psmd->mesh_final->totface;
+ }
+
+ if (!(ctx->object->transflag & OB_NO_PSYS_UPDATE)) {
+ struct Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
+ psmd->flag &= ~eParticleSystemFlag_psys_updated;
+ particle_system_update(
+ ctx->depsgraph, scene, ctx->object, psys, (ctx->flag & MOD_APPLY_RENDER) != 0);
+ psmd->flag |= eParticleSystemFlag_psys_updated;
+ }
+
+ if (DEG_is_active(ctx->depsgraph)) {
+ Object *object_orig = DEG_get_original_object(ctx->object);
+ ModifierData *md_orig = modifiers_findByName(object_orig, psmd->modifier.name);
+ BLI_assert(md_orig != NULL);
+ ParticleSystemModifierData *psmd_orig = (ParticleSystemModifierData *)md_orig;
+ psmd_orig->flag = psmd->flag;
+ }
}
/* disabled particles in editmode for now, until support for proper evaluated mesh
* updates is coded */
#if 0
-static void deformVertsEM(
- ModifierData *md, Object *ob, BMEditMesh *editData,
- Mesh *mesh, float (*vertexCos)[3], int numVerts)
+static void deformVertsEM(ModifierData *md,
+ Object *ob,
+ BMEditMesh *editData,
+ Mesh *mesh,
+ float (*vertexCos)[3],
+ int numVerts)
{
- const bool do_temp_mesh = (mesh == NULL);
- if (do_temp_mesh) {
- mesh = BKE_id_new_nomain(ID_ME, ((ID *)ob->data)->name);
- BM_mesh_bm_to_me(NULL, editData->bm, mesh, &((BMeshToMeshParams){0}));
- }
+ const bool do_temp_mesh = (mesh == NULL);
+ if (do_temp_mesh) {
+ mesh = BKE_id_new_nomain(ID_ME, ((ID *)ob->data)->name);
+ BM_mesh_bm_to_me(NULL, editData->bm, mesh, &((BMeshToMeshParams){0}));
+ }
- deformVerts(md, ob, mesh, vertexCos, numVerts);
+ deformVerts(md, ob, mesh, vertexCos, numVerts);
- if (derivedData) {
- BKE_id_free(NULL, mesh);
- }
+ if (derivedData) {
+ BKE_id_free(NULL, mesh);
+ }
}
#endif
-
ModifierTypeInfo modifierType_ParticleSystem = {
- /* name */ "ParticleSystem",
- /* structName */ "ParticleSystemModifierData",
- /* structSize */ sizeof(ParticleSystemModifierData),
- /* type */ eModifierTypeType_OnlyDeform,
- /* flags */ eModifierTypeFlag_AcceptsMesh |
- eModifierTypeFlag_SupportsMapping |
- eModifierTypeFlag_UsesPointCache /* |
- eModifierTypeFlag_SupportsEditmode |
- eModifierTypeFlag_EnableInEditmode */,
-
- /* copyData */ copyData,
-
- /* deformVerts */ deformVerts,
- /* deformMatrices */ NULL,
- /* deformVertsEM */ NULL,
- /* deformMatricesEM */ NULL,
- /* applyModifier */ NULL,
-
- /* initData */ initData,
- /* requiredDataMask */ requiredDataMask,
- /* freeData */ freeData,
- /* isDisabled */ NULL,
- /* updateDepsgraph */ NULL,
- /* dependsOnTime */ NULL,
- /* dependsOnNormals */ NULL,
- /* foreachObjectLink */ NULL,
- /* foreachIDLink */ NULL,
- /* foreachTexLink */ NULL,
- /* freeRuntimeData */ NULL,
+ /* name */ "ParticleSystem",
+ /* structName */ "ParticleSystemModifierData",
+ /* structSize */ sizeof(ParticleSystemModifierData),
+ /* type */ eModifierTypeType_OnlyDeform,
+ /* flags */ eModifierTypeFlag_AcceptsMesh | eModifierTypeFlag_SupportsMapping |
+ eModifierTypeFlag_UsesPointCache /* |
+ eModifierTypeFlag_SupportsEditmode |
+ eModifierTypeFlag_EnableInEditmode */
+ ,
+
+ /* copyData */ copyData,
+
+ /* deformVerts */ deformVerts,
+ /* deformMatrices */ NULL,
+ /* deformVertsEM */ NULL,
+ /* deformMatricesEM */ NULL,
+ /* applyModifier */ NULL,
+
+ /* initData */ initData,
+ /* requiredDataMask */ requiredDataMask,
+ /* freeData */ freeData,
+ /* isDisabled */ NULL,
+ /* updateDepsgraph */ NULL,
+ /* dependsOnTime */ NULL,
+ /* dependsOnNormals */ NULL,
+ /* foreachObjectLink */ NULL,
+ /* foreachIDLink */ NULL,
+ /* foreachTexLink */ NULL,
+ /* freeRuntimeData */ NULL,
};
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