Crash when auto smooth is enabled #115080
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
Broken: version: 4.0.1, branch: blender-v4.0-release, commit date: 2023-11-16 16:40, hash:
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.
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.
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.
Hi, thanks for the report. Can confirm the crash in 4.0
but not in 4.1.0
@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
No due date set.
No dependencies set.
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?