Crash when using particles rendered as whole collection #69702

New Issue

Val Acar · 2019-09-10T08:52:32+02:00

Val Acar commented

2019-09-10 08:52:32 +02:00

{F7729863}System Information
Operating system: Linux-5.2.8-1-MANJARO-x86_64-with-arch-Manjaro-Linux 64 Bits
Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.40

Blender Version
Broken: version: 2.81 (sub 5), branch: master, commit date: 2019-09-03 22:58, hash: 1886a2f3f5
Also broken in the final release of 2.80

Short description of error
When making a particle system that is rendered as an instance collection that also enables the "Use Count" option where one object count is set zero, enabling the "Whole Collection" option will cause Blender to crash.

Exact steps for others to reproduce the error

Start with default cube scene
Create two meshes (e.g. a cube and sphere) to be used as particles
Create a collection for the two meshes (in step 2)
Create another mesh (e.g. a plane) to be used for a particle emitter
Create a new particle system
Go to the Render section of the particles, and set Render As to Collection
Add the collection that was created for the two particles to Instance Collection (from step 3)
Enable Use Count and expand it open to see the two particles listed
Change one of the particles to use a count of 0
Enable Whole Collection option, and Blender will crash

I'll also attach a blend file. After opening it, in the properties editor, go to the particles tab, expand the Render section and the Collection section within it. Enable the Whole Collection option and Blender will crash.

Backtrace:

Blender 2.81 (sub 5), Commit date: 2019-09-03 22:58, Hash `1886a2f3f5`

bpy.ops.view3d.pastebuffer() # Operator
2 objects pasted # Info
bpy.ops.object.delete(use_global=False) # Operator
Deleted 1 object(s) # Info
bpy.ops.mesh.primitive_plane_add(size=2, enter_editmode=False, location=(0, 0, 0)) # Operator
bpy.context.space_data.context = 'PARTICLES' # Property
bpy.ops.object.particle_system_add() # Operator
bpy.data.window_managers["WinMan"].(null) = "particles" # Property
bpy.ops.object.move_to_collection(collection_index=0, is_new=True, new_collection_name="particles") # Operator
Objects moved to particles # Info
bpy.data.particles["ParticleSettings"].render_type = 'COLLECTION' # Property
bpy.data.particles["ParticleSettings"].instance_collection = bpy.data.collections["particles"] # Property
bpy.data.particles["ParticleSettings"].use_collection_count = True # Property
bpy.data.particles["ParticleSettings"].(null) = 0 # Property

backtrace

/home/mark/Downloads/blender-2.81/blender(BLI_system_backtrace+0x1d) [0x14c530d]
/home/mark/Downloads/blender-2.81/blender() [0x12a9e89]
/usr/lib/libc.so.6(+0x3a7e0) [0x7f03f88ee7e0]
/home/mark/Downloads/blender-2.81/blender(copy_m4_m4+0) [0x14a3d70]
/home/mark/Downloads/blender-2.81/blender() [0x13992a7]
/home/mark/Downloads/blender-2.81/blender(object_duplilist+0xaa) [0x139a86a]
/home/mark/Downloads/blender-2.81/blender() [0x14cd6aa]
/home/mark/Downloads/blender-2.81/blender(DEG_iterator_objects_next+0x1ce) [0x14cd8ce]
/home/mark/Downloads/blender-2.81/blender() [0x417b24d]
/home/mark/Downloads/blender-2.81/blender(ED_info_stats_string+0x5b) [0x417b77b]
/home/mark/Downloads/blender-2.81/blender(Scene_statistics_call+0x21) [0x16277f1]
/home/mark/Downloads/blender-2.81/blender(RNA_function_call+0x12) [0x15766e2]
/home/mark/Downloads/blender-2.81/blender() [0x1541eca]
/home/mark/Downloads/blender-2.81/blender(_PyObject_FastCallKeywords+0x104) [0x18ae0c4]
/home/mark/Downloads/blender-2.81/blender(_PyEval_EvalFrameDefault+0x6e42) [0x12a40c2]
/home/mark/Downloads/blender-2.81/blender() [0x129c1d0]
/home/mark/Downloads/blender-2.81/blender(_PyFunction_FastCallDict+0x2a6) [0x18ad966]
/home/mark/Downloads/blender-2.81/blender() [0x15425ae]
/home/mark/Downloads/blender-2.81/blender() [0x1650597]
/home/mark/Downloads/blender-2.81/blender(ED_region_header_layout+0x145) [0x2eb00f5]
/home/mark/Downloads/blender-2.81/blender(wm_draw_update+0x36d) [0x1674b9d]
/home/mark/Downloads/blender-2.81/blender(WM_main+0x30) [0x16723d0]
/home/mark/Downloads/blender-2.81/blender(main+0x2fe) [0x121642e]
/usr/lib/libc.so.6(__libc_start_main+0xf3) [0x7f03f88daee3]
/home/mark/Downloads/blender-2.81/blender() [0x12a67ac]

{[F7729863](https://archive.blender.org/developer/F7729863/particle-whole-collection-crash.blend)}**System Information** Operating system: Linux-5.2.8-1-MANJARO-x86_64-with-arch-Manjaro-Linux 64 Bits Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.40 **Blender Version** Broken: version: 2.81 (sub 5), branch: master, commit date: 2019-09-03 22:58, hash: `1886a2f3f5` Also broken in the final release of 2.80 **Short description of error** When making a particle system that is rendered as an instance collection that also enables the "Use Count" option where one object count is set zero, enabling the "Whole Collection" option will cause Blender to crash. **Exact steps for others to reproduce the error** 1. Start with default cube scene 2. Create two meshes (e.g. a cube and sphere) to be used as particles 3. Create a collection for the two meshes (in step 2) 4. Create another mesh (e.g. a plane) to be used for a particle emitter 5. Create a new particle system 6. Go to the Render section of the particles, and set Render As to Collection 7. Add the collection that was created for the two particles to Instance Collection (from step 3) 8. Enable Use Count and expand it open to see the two particles listed 9. Change one of the particles to use a count of 0 10. Enable Whole Collection option, and Blender will crash I'll also attach a blend file. After opening it, in the properties editor, go to the particles tab, expand the Render section and the Collection section within it. Enable the Whole Collection option and Blender will crash. Backtrace: # Blender 2.81 (sub 5), Commit date: 2019-09-03 22:58, Hash 1886a2f3f598 bpy.ops.view3d.pastebuffer() # Operator 2 objects pasted # Info bpy.ops.object.delete(use_global=False) # Operator Deleted 1 object(s) # Info bpy.ops.mesh.primitive_plane_add(size=2, enter_editmode=False, location=(0, 0, 0)) # Operator bpy.context.space_data.context = 'PARTICLES' # Property bpy.ops.object.particle_system_add() # Operator bpy.data.window_managers["WinMan"].(null) = "particles" # Property bpy.ops.object.move_to_collection(collection_index=0, is_new=True, new_collection_name="particles") # Operator Objects moved to particles # Info bpy.data.particles["ParticleSettings"].render_type = 'COLLECTION' # Property bpy.data.particles["ParticleSettings"].instance_collection = bpy.data.collections["particles"] # Property bpy.data.particles["ParticleSettings"].use_collection_count = True # Property bpy.data.particles["ParticleSettings"].(null) = 0 # Property # backtrace /home/mark/Downloads/blender-2.81/blender(BLI_system_backtrace+0x1d) [0x14c530d] /home/mark/Downloads/blender-2.81/blender() [0x12a9e89] /usr/lib/libc.so.6(+0x3a7e0) [0x7f03f88ee7e0] /home/mark/Downloads/blender-2.81/blender(copy_m4_m4+0) [0x14a3d70] /home/mark/Downloads/blender-2.81/blender() [0x13992a7] /home/mark/Downloads/blender-2.81/blender(object_duplilist+0xaa) [0x139a86a] /home/mark/Downloads/blender-2.81/blender() [0x14cd6aa] /home/mark/Downloads/blender-2.81/blender(DEG_iterator_objects_next+0x1ce) [0x14cd8ce] /home/mark/Downloads/blender-2.81/blender() [0x417b24d] /home/mark/Downloads/blender-2.81/blender(ED_info_stats_string+0x5b) [0x417b77b] /home/mark/Downloads/blender-2.81/blender(Scene_statistics_call+0x21) [0x16277f1] /home/mark/Downloads/blender-2.81/blender(RNA_function_call+0x12) [0x15766e2] /home/mark/Downloads/blender-2.81/blender() [0x1541eca] /home/mark/Downloads/blender-2.81/blender(_PyObject_FastCallKeywords+0x104) [0x18ae0c4] /home/mark/Downloads/blender-2.81/blender(_PyEval_EvalFrameDefault+0x6e42) [0x12a40c2] /home/mark/Downloads/blender-2.81/blender() [0x129c1d0] /home/mark/Downloads/blender-2.81/blender(_PyFunction_FastCallDict+0x2a6) [0x18ad966] /home/mark/Downloads/blender-2.81/blender() [0x15425ae] /home/mark/Downloads/blender-2.81/blender() [0x1650597] /home/mark/Downloads/blender-2.81/blender(ED_region_header_layout+0x145) [0x2eb00f5] /home/mark/Downloads/blender-2.81/blender(wm_draw_update+0x36d) [0x1674b9d] /home/mark/Downloads/blender-2.81/blender(WM_main+0x30) [0x16723d0] /home/mark/Downloads/blender-2.81/blender(main+0x2fe) [0x121642e] /usr/lib/libc.so.6(__libc_start_main+0xf3) [0x7f03f88daee3] /home/mark/Downloads/blender-2.81/blender() [0x12a67ac]

Val Acar commented

2019-09-10 08:52:32 +02:00

Added subscriber: @Valacar