Crash when auto smooth is enabled #115080

New Issue

niu · 2023-11-18T04:41:58+01:00

niu commented

2023-11-18 04:41:58 +01:00

First-time contributor

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 4070/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 546.01

Blender Version
Broken: version: 4.0.1, branch: blender-v4.0-release, commit date: 2023-11-16 16:40, hash: d0dd92834a08
Worked: 3.6.5

Short description of error
Turning auto-smooth on and off for certain geometry meshes causes Blender to crash with a run-time error.
This seems to cause the cross simulation bake to crash as well.

Exact steps for others to reproduce the error
So far I have not been able to reproduce this situation from a new file,
I am attaching a file that I have identified to the part of the file that crashes at a high probability.
If I turn "Subdivision Surface" on and off multiple times, I get an error like the one in the screenshot and a forced termination.

This problem has occurred since 4.0.0 beta.
It did not occur in 3.6.5.

Incidentally, no crash log is output.
I had installed the VC runtime, but uninstalled it because it seemed to be related to this bug.
However, the situation did not improve.

Occurs either with GPU subdivision on or off.

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 4070/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 546.01 **Blender Version** Broken: version: 4.0.1, branch: blender-v4.0-release, commit date: 2023-11-16 16:40, hash: `d0dd92834a08` Worked: 3.6.5 **Short description of error** Turning auto-smooth on and off for certain geometry meshes causes Blender to crash with a run-time error. This seems to cause the cross simulation bake to crash as well. **Exact steps for others to reproduce the error** So far I have not been able to reproduce this situation from a new file, I am attaching a file that I have identified to the part of the file that crashes at a high probability. If I turn "Subdivision Surface" on and off multiple times, I get an error like the one in the screenshot and a forced termination. This problem has occurred since 4.0.0 beta. It did not occur in 3.6.5. Incidentally, no crash log is output. I had installed the VC runtime, but uninstalled it because it seemed to be related to this bug. However, the situation did not improve. Occurs either with GPU subdivision on or off.

untitled25.blend

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2023-11-18 (4).png

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niu added the

labels 2023-11-18 04:41:59 +01:00

niu commented

2023-11-18 10:30:10 +01:00

First-time contributor

Regarding the crash of the cross simulation bake, it seems to be caused by something else because it crashed even after turning off auto-smooth.
At any rate, I think I can work around it by disabling subdivision surfaces and baking.

Regarding the crash of the cross simulation bake, it seems to be caused by something else because it crashed even after turning off auto-smooth. At any rate, I think I can work around it by disabling subdivision surfaces and baking.

Ian Failing commented

2023-11-20 02:21:08 +01:00

First-time contributor

I reproduced the subdivision crash in 4.0.1 d0dd92834a, but not in 4.1.0 cb5f650a5a. Either I just didn't jam the mouse enough, or it miiight have been fixed in 4.1.0.
https://builder.blender.org/download/daily/

I reproduced the subdivision crash in 4.0.1 d0dd92834a08, but not in 4.1.0 cb5f650a5aa1. Either I just didn't jam the mouse enough, or it miiight have been fixed in 4.1.0. https://builder.blender.org/download/daily/

Pratik Borhade commented

2023-11-20 11:18:49 +01:00

Hi, thanks for the report. Can confirm the crash in 4.0

but not in 4.1.0 cb5f650a5a

@Ian-Failing , old auto smooth is now replaced with a GN modifier "auto smooth/smooth by angle". This could be a reason for crash to no occur in 4.1

Hi, thanks for the report. Can confirm the crash in 4.0 > but not in 4.1.0 cb5f650a5a @Ian-Failing , old `auto smooth` is now replaced with a GN modifier "auto smooth/smooth by angle". This could be a reason for crash to no occur in 4.1

Pratik Borhade added

and removed

labels 2023-11-20 11:20:23 +01:00

Pratik Borhade added this to the 4.0 milestone 2023-11-20 12:54:16 +01:00

Pratik Borhade added

Priority