Blender 2.91 crash when you select Grid Display > 'Obstacle Levelset' or 'Outflow Levelset' in Fluid Simulation #80943

New Issue

Óscar · 2020-09-18T19:19:19+02:00

Óscar commented

2020-09-18 19:19:19 +02:00

System Information
Operating system: Darwin-17.7.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon HD 6970M OpenGL Engine ATI Technologies Inc. 4.1 ATI-1.68.25

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-17 21:51, hash: cacd57b67a
Worked: (newest version of Blender that worked as expected)

Short description of error
Blender crashes when Physics Properties > Fluid > Viewport Display > Grid Display > Field is set to Obstacle Levelset or Outflow Levelset without an obstacle or outflow object in the scene.

Exact steps for others to reproduce the error

Open the default file
Select the cube and use Object > Quick Effects > Quick Liquid
In Physics Properties > Fluid > Viewport Display, tick the checkbox for Grid Display and set Field to Obstacle Levelset or Outflow Levelset.
Blender crashes

Keep in mind that there aren't obstacles or outflow objects in the scene.

**System Information** Operating system: Darwin-17.7.0-x86_64-i386-64bit 64 Bits Graphics card: AMD Radeon HD 6970M OpenGL Engine ATI Technologies Inc. 4.1 ATI-1.68.25 **Blender Version** Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-17 21:51, hash: `cacd57b67a` Worked: (newest version of Blender that worked as expected) **Short description of error** Blender crashes when *Physics Properties > Fluid > Viewport Display > Grid Display > Field* is set to *Obstacle Levelset* or *Outflow Levelset* without an obstacle or outflow object in the scene. **Exact steps for others to reproduce the error** - Open the default file - Select the cube and use *Object > Quick Effects > Quick Liquid* - In *Physics Properties > Fluid > Viewport Display*, tick the checkbox for *Grid Display* and set *Field* to *Obstacle Levelset* or *Outflow Levelset*. - Blender crashes Keep in mind that there aren't obstacles or outflow objects in the scene.

Óscar commented

2020-09-18 19:19:19 +02:00

Added subscriber: @Oxer-1

Óscar changed title from ~~Blender crash when you select Grid Display > 'Obstacle Levelset' or 'Outflow Levelset' in Fluid Simulation~~ to Blender 2.91 crash when you select Grid Display > 'Obstacle Levelset' or 'Outflow Levelset' in Fluid Simulation

2020-09-18 19:21:23 +02:00

Robert Guetzkow commented

2020-09-18 22:01:29 +02:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-09-18 22:01:29 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Robert Guetzkow commented

2020-09-18 22:01:29 +02:00

I can confirm this crash. The GPUTexture pointer tex passed into swizzle_texture_channel_single() is NULL. The texture is supposed to be created by create_volume_texture() in create_field_texture(). Subsequent functions don't check if the pointer is NULL and attempt to dereference it.

GPU_texture_swizzle_set(GPUTexture * tex, const char * swizzle) Line 505	C++
swizzle_texture_channel_single(GPUTexture * tex) Line 132	C
create_field_texture(FluidDomainSettings * fds, bool single_precision) Line 321	C
DRW_smoke_ensure_coba_field(FluidModifierData * fmd) Line 483	C
workbench_volume_modifier_cache_populate(WORKBENCH_Data * vedata, Object * ob, ModifierData * md) Line 82	C
workbench_volume_cache_populate(WORKBENCH_Data * vedata, Scene * UNUSED_scene, Object * ob, ModifierData * md, eV3DShadingColorType color_type) Line 339	C
workbench_cache_populate(void * ved, Object * ob) Line 372	C
drw_engines_cache_populate(Object * ob) Line 1081	C
DRW_draw_render_loop_ex(Depsgraph * depsgraph, RenderEngineType * engine_type, ARegion * region, View3D * v3d, GPUViewport * viewport, const bContext * evil_C) Line 1579	C
DRW_draw_view(const bContext * C) Line 1487	C
view3d_draw_view(const bContext * C, ARegion * region) Line 1594	C
view3d_main_region_draw(const bContext * C, ARegion * region) Line 1617	C
ED_region_do_draw(bContext * C, ARegion * region) Line 535	C
wm_draw_window_offscreen(bContext * C, wmWindow * win, bool stereo) Line 732	C
wm_draw_window(bContext * C, wmWindow * win) Line 871	C
wm_draw_update(bContext * C) Line 1072	C
WM_main(bContext * C) Line 489	C
main(int argc, const unsigned char * * UNUSED_argv_c) Line 534	C

I can confirm this crash. The `GPUTexture` pointer `tex` passed into `swizzle_texture_channel_single()` is `NULL`. The texture is supposed to be created by `create_volume_texture()` in `create_field_texture()`. Subsequent functions don't check if the pointer is `NULL` and attempt to dereference it. ``` GPU_texture_swizzle_set(GPUTexture * tex, const char * swizzle) Line 505 C++ swizzle_texture_channel_single(GPUTexture * tex) Line 132 C create_field_texture(FluidDomainSettings * fds, bool single_precision) Line 321 C DRW_smoke_ensure_coba_field(FluidModifierData * fmd) Line 483 C workbench_volume_modifier_cache_populate(WORKBENCH_Data * vedata, Object * ob, ModifierData * md) Line 82 C workbench_volume_cache_populate(WORKBENCH_Data * vedata, Scene * UNUSED_scene, Object * ob, ModifierData * md, eV3DShadingColorType color_type) Line 339 C workbench_cache_populate(void * ved, Object * ob) Line 372 C drw_engines_cache_populate(Object * ob) Line 1081 C DRW_draw_render_loop_ex(Depsgraph * depsgraph, RenderEngineType * engine_type, ARegion * region, View3D * v3d, GPUViewport * viewport, const bContext * evil_C) Line 1579 C DRW_draw_view(const bContext * C) Line 1487 C view3d_draw_view(const bContext * C, ARegion * region) Line 1594 C view3d_main_region_draw(const bContext * C, ARegion * region) Line 1617 C ED_region_do_draw(bContext * C, ARegion * region) Line 535 C wm_draw_window_offscreen(bContext * C, wmWindow * win, bool stereo) Line 732 C wm_draw_window(bContext * C, wmWindow * win) Line 871 C wm_draw_update(bContext * C) Line 1072 C WM_main(bContext * C) Line 489 C main(int argc, const unsigned char * * UNUSED_argv_c) Line 534 C ```

blender-admin commented

2020-09-22 10:42:52 +02:00

This issue was referenced by 222ed9f781

This issue was referenced by 222ed9f78170116e1739a5cef65d31322d72f507

Jacques Lucke commented

2020-09-22 10:43:42 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Jacques Lucke closed this issue

2020-09-22 10:43:42 +02:00

Jacques Lucke self-assigned this 2020-09-22 10:43:42 +02:00

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Blender 2.91 crash when you select Grid Display > 'Obstacle Levelset' or 'Outflow Levelset' in Fluid Simulation #80943