GPU Subdivision: Instant crash when entering edit mode in one particular object #113403

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Riccardo-Seveso · 2023-10-07T23:43:21+02:00

Riccardo-Seveso commented

2023-10-07 23:43:21 +02:00

System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3070 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 536.40

Blender Version
Broken: version: 3.6.2, branch: blender-v3.6-release, commit date: 2023-08-16 16:43, hash: e53e55951e7a
Worked: (newest version of Blender that worked as expected)

Short description of error
Program instantly crashes upon entering edit mode in one particular object when subsurf modifier is present in the stack.

Exact steps for others to reproduce the error
Select Outliner > "Final meshes" > "Aero kit" > "Rear Diffuser ribs - Final";
Enter into edit mode; Program crashes instantly.
If subsurf modifier is removed or hidden, the program works as intended; As soon as a subsurf modifier is added or enabled when in edit mode, the program crashes.
If subsurf is applied, the program works as intended.
[Based on the default startup or an attached .blend file (as simple as possible)]

**System Information** Operating system: Windows-10-10.0.22621-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3070 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 536.40 **Blender Version** Broken: version: 3.6.2, branch: blender-v3.6-release, commit date: 2023-08-16 16:43, hash: `e53e55951e7a` Worked: (newest version of Blender that worked as expected) **Short description of error** Program instantly crashes upon entering edit mode in one particular object when subsurf modifier is present in the stack. **Exact steps for others to reproduce the error** Select Outliner > "Final meshes" > "Aero kit" > "Rear Diffuser ribs - Final"; Enter into edit mode; Program crashes instantly. If subsurf modifier is removed or hidden, the program works as intended; As soon as a subsurf modifier is added or enabled when in edit mode, the program crashes. If subsurf is applied, the program works as intended. [Based on the default startup or an attached .blend file (as simple as possible)]

Car__.blend

3.0 MiB

Riccardo-Seveso added the

labels 2023-10-07 23:43:21 +02:00

Amine Bensalem commented

2023-10-08 00:38:57 +02:00

related to #113377 maybe ?

Riccardo-Seveso commented

2023-10-08 09:00:58 +02:00

Perhaps, it does seem to have something to do with it. I'll try and play around more to understand what's wrong, but this one has got me quite stumped.

YimingWu commented

2023-10-08 16:18:35 +02:00

I haven't been able to select anything before it reaches this asset:

BLI_assert failed: source/blender/blenkernel/intern/data_transfer.cc:371, data_transfer_dtdata_type_preprocess(), at 'CustomData_get_layer(&me_src->loop_data, CD_NORMAL) != nullptr

I haven't been able to select anything before it reaches this asset: ``` BLI_assert failed: source/blender/blenkernel/intern/data_transfer.cc:371, data_transfer_dtdata_type_preprocess(), at 'CustomData_get_layer(&me_src->loop_data, CD_NORMAL) != nullptr ```

Hans Goudey commented

2023-10-08 16:25:12 +02:00

The assert means there is already a cached face corner normal layer in the mesh. To me the assert doesn't seem that helpful. The need for it is replaced with #108014

👍 1

Pratik Borhade commented

2023-10-09 07:36:50 +02:00

Can confirm the crash when GPU Subdivision is enabled.

Can confirm the crash when `GPU Subdivision` is enabled.

Pratik Borhade added

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GPU Subdivision: Instant crash when entering edit mode in one particular object #113403