[Bf-blender-cvs] [7ba096e1e72] master: Fix T63788: Crash if particle system is turned off in particle editing mode
Sergey Sharybin
noreply at git.blender.org
Thu Jul 4 15:51:18 CEST 2019
Commit: 7ba096e1e72d99c2c43986cf009b14dfbea539a4
Author: Sergey Sharybin
Date: Thu Jul 4 10:42:35 2019 +0200
Branches: master
https://developer.blender.org/rB7ba096e1e72d99c2c43986cf009b14dfbea539a4
Fix T63788: Crash if particle system is turned off in particle editing mode
Make sure particle system edit never points to a modifier or particle system
which becomes inactive.
This is needed because copy-on-write will change pointers of them and those
pointers are supposed to be restored from particle system evaluation. But
since the particle system is disabled it never updates pointers.
Reviewers: brecht
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D5180
===================================================================
M source/blender/blenkernel/intern/particle.c
M source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
M source/blender/editors/physics/particle_edit.c
===================================================================
diff --git a/source/blender/blenkernel/intern/particle.c b/source/blender/blenkernel/intern/particle.c
index 13649eaf096..975e180545f 100644
--- a/source/blender/blenkernel/intern/particle.c
+++ b/source/blender/blenkernel/intern/particle.c
@@ -3291,6 +3291,10 @@ void psys_cache_edit_paths(Depsgraph *depsgraph,
int segments = 1 << pset->draw_step;
int totpart = edit->totpoint, recalc_set = 0;
+ if (edit->psmd_eval == NULL) {
+ return;
+ }
+
segments = MAX2(segments, 4);
if (!cache || edit->totpoint != edit->totcached) {
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc b/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
index be78eee91cc..3fef7fc9c02 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
+++ b/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.cc
@@ -87,6 +87,7 @@ extern "C" {
#include "BKE_library_query.h"
#include "BKE_modifier.h"
#include "BKE_object.h"
+#include "BKE_pointcache.h"
#include "BKE_sequencer.h"
#include "BKE_sound.h"
}
@@ -683,10 +684,22 @@ void set_particle_system_modifiers_loaded(Object *object_cow)
}
}
+void reset_particle_system_edit_eval(Object *object_cow)
+{
+ LISTBASE_FOREACH (ParticleSystem *, psys, &object_cow->particlesystem) {
+ ParticleSystem *orig_psys = psys->orig_psys;
+ if (orig_psys->edit != NULL) {
+ orig_psys->edit->psys_eval = NULL;
+ orig_psys->edit->psmd_eval = NULL;
+ }
+ }
+}
+
void update_particles_after_copy(const Object *object_orig, Object *object_cow)
{
update_particle_system_orig_pointers(object_orig, object_cow);
set_particle_system_modifiers_loaded(object_cow);
+ reset_particle_system_edit_eval(object_cow);
}
void update_pose_orig_pointers(const bPose *pose_orig, bPose *pose_cow)
diff --git a/source/blender/editors/physics/particle_edit.c b/source/blender/editors/physics/particle_edit.c
index dc634865a0a..4a55cb6c5c6 100644
--- a/source/blender/editors/physics/particle_edit.c
+++ b/source/blender/editors/physics/particle_edit.c
@@ -97,23 +97,38 @@ bool PE_poll(bContext *C)
Object *ob = CTX_data_active_object(C);
if (!scene || !ob || !(ob->mode & OB_MODE_PARTICLE_EDIT)) {
- return 0;
+ return false;
+ }
+
+ PTCacheEdit *edit = PE_get_current(scene, ob);
+ if (edit == NULL) {
+ return false;
}
- return (PE_get_current(scene, ob) != NULL);
+ if (edit->psmd_eval == NULL || edit->psmd_eval->mesh_final == NULL) {
+ return false;
+ }
+
+ return true;
}
bool PE_hair_poll(bContext *C)
{
Scene *scene = CTX_data_scene(C);
Object *ob = CTX_data_active_object(C);
- PTCacheEdit *edit;
if (!scene || !ob || !(ob->mode & OB_MODE_PARTICLE_EDIT)) {
- return 0;
+ return false;
+ }
+
+ PTCacheEdit *edit = PE_get_current(scene, ob);
+ if (edit == NULL || edit->psys == NULL) {
+ return false;
+ }
+ if (edit->psmd_eval == NULL || edit->psmd_eval->mesh_final == NULL) {
+ return false;
}
- edit = PE_get_current(scene, ob);
- return (edit && edit->psys);
+ return true;
}
bool PE_poll_view3d(bContext *C)
@@ -1085,7 +1100,7 @@ static void PE_apply_mirror(Object *ob, ParticleSystem *psys)
edit = psys->edit;
psmd_eval = edit->psmd_eval;
- if (!psmd_eval->mesh_final) {
+ if (psmd_eval == NULL || psmd_eval->mesh_final == NULL) {
return;
}
@@ -1217,7 +1232,7 @@ static void pe_deflect_emitter(Scene *scene, Object *ob, PTCacheEdit *edit)
psys = edit->psys;
- if (!edit->psmd_eval->mesh_final) {
+ if (edit->psmd_eval == NULL || edit->psmd_eval->mesh_final == NULL) {
return;
}
@@ -1489,7 +1504,7 @@ void update_world_cos(Depsgraph *UNUSED(depsgraph), Object *ob, PTCacheEdit *edi
KEY_K;
float hairmat[4][4];
- if (psys == 0 || psys->edit == 0 || psmd_eval->mesh_final == NULL) {
+ if (psys == 0 || psys->edit == 0 || psmd_eval == NULL || psmd_eval->mesh_final == NULL) {
return;
}
More information about the Bf-blender-cvs
mailing list