Segfault with GPU subdivision on a custom bone shape #94726

New Issue

Daniel Salazar · 2022-01-07T23:25:37+01:00

Daniel Salazar commented

2022-01-07 23:25:37 +01:00

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1080 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 497.29

Blender Version
Broken: version: 3.1.0 Alpha, branch: master, commit date: 2022-01-06 23:21, hash: e6ca0b33e9

Short description of error
Crash when a custom bone shape has a subdivision modifier and GPU subdivision is enabled

Exact steps for others to reproduce the error
GPU Subdiv Crash.blend
Enable OGL Subdivision
Add a Subdivision modifier to the selected object

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1080 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 497.29 **Blender Version** Broken: version: 3.1.0 Alpha, branch: master, commit date: 2022-01-06 23:21, hash: `e6ca0b33e9` **Short description of error** Crash when a custom bone shape has a subdivision modifier and GPU subdivision is enabled **Exact steps for others to reproduce the error** [GPU Subdiv Crash.blend](https://archive.blender.org/developer/F12793449/GPU_Subdiv_Crash.blend) Enable OGL Subdivision Add a Subdivision modifier to the selected object

Daniel Salazar commented

2022-01-07 23:25:37 +01:00

Added subscriber: @zanqdo

blender-admin commented

2022-01-07 23:25:37 +01:00

#94871 was marked as duplicate of this issue

blender-admin commented

2022-01-07 23:25:37 +01:00

#94939 was marked as duplicate of this issue

Jesse Yurkovich commented

2022-01-08 02:15:04 +01:00

Added subscriber: @deadpin

Jesse Yurkovich commented

2022-01-08 02:15:04 +01:00

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

Jesse Yurkovich commented

2022-01-08 02:15:04 +01:00

It will hit the following assert in debug mode:

BLI_assert failed: F:\source\blender-git\blender\source\blender\gpu\intern\gpu_batch.cc:76, GPU_batch_init_ex(), at 'verts != nullptr'

_BLI_assert_abort F:\source\blender-git\blender\source\blender\blenlib\intern\BLI_assert.c:61
GPU_batch_init_ex F:\source\blender-git\blender\source\blender\gpu\intern\gpu_batch.cc:76
GPU_batch_copy F:\source\blender-git\blender\source\blender\gpu\intern\gpu_batch.cc:98
DRW_instance_buffer_finish F:\source\blender-git\blender\source\blender\draw\intern\draw_instance_data.c:241
DRW_render_instance_buffer_finish F:\source\blender-git\blender\source\blender\draw\intern\draw_manager.c:2300
DRW_draw_render_loop_ex F:\source\blender-git\blender\source\blender\draw\intern\draw_manager.c:1714
DRW_draw_view F:\source\blender-git\blender\source\blender\draw\intern\draw_manager.c:1615
view3d_draw_view F:\source\blender-git\blender\source\blender\editors\space_view3d\view3d_draw.c:1561
view3d_main_region_draw F:\source\blender-git\blender\source\blender\editors\space_view3d\view3d_draw.c:1584

It will hit the following assert in debug mode: ``` BLI_assert failed: F:\source\blender-git\blender\source\blender\gpu\intern\gpu_batch.cc:76, GPU_batch_init_ex(), at 'verts != nullptr' _BLI_assert_abort F:\source\blender-git\blender\source\blender\blenlib\intern\BLI_assert.c:61 GPU_batch_init_ex F:\source\blender-git\blender\source\blender\gpu\intern\gpu_batch.cc:76 GPU_batch_copy F:\source\blender-git\blender\source\blender\gpu\intern\gpu_batch.cc:98 DRW_instance_buffer_finish F:\source\blender-git\blender\source\blender\draw\intern\draw_instance_data.c:241 DRW_render_instance_buffer_finish F:\source\blender-git\blender\source\blender\draw\intern\draw_manager.c:2300 DRW_draw_render_loop_ex F:\source\blender-git\blender\source\blender\draw\intern\draw_manager.c:1714 DRW_draw_view F:\source\blender-git\blender\source\blender\draw\intern\draw_manager.c:1615 view3d_draw_view F:\source\blender-git\blender\source\blender\editors\space_view3d\view3d_draw.c:1561 view3d_main_region_draw F:\source\blender-git\blender\source\blender\editors\space_view3d\view3d_draw.c:1584 ```

Philipp Oeser commented

2022-01-14 09:48:10 +01:00

Added subscriber: @lichtwerk