Subdivision surface bug in cycles #95566

Closed
opened 2022-02-06 22:35:00 +01:00 by Shmuel Israel · 10 comments

System Information
Operating system: Windows-10-10.0.19042-SP0 64 Bits
Graphics card: GeForce RTX 2070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.80

Blender Version
Broken: version: 3.1.0 Beta, branch: master, commit date: 2022-02-02 15:25, hash: 43b0ff3054
and all versions after
Worked: 3.1.0 Alfa

Short description of error
subdivision surface doesn't work in cycles viewport render view, and final render.

Exact steps for others to reproduce the error
subdivision surface doesn't work in cycles viewport render view, and final render.
unless it has another modifier after it, even if it isn't actually doing anything as long as it's on[the other modifier]. and Adaptive subdivision doesn't have this issue. and also Applying it dose work
SubivisionSurface_Bug.blend

**System Information** Operating system: Windows-10-10.0.19042-SP0 64 Bits Graphics card: GeForce RTX 2070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.80 **Blender Version** Broken: version: 3.1.0 Beta, branch: master, commit date: 2022-02-02 15:25, hash: `43b0ff3054` and all versions after Worked: 3.1.0 Alfa **Short description of error** subdivision surface doesn't work in cycles viewport render view, and final render. **Exact steps for others to reproduce the error** subdivision surface doesn't work in cycles viewport render view, and final render. unless it has another modifier after it, even if it isn't actually doing anything as long as it's on[the other modifier]. and Adaptive subdivision doesn't have this issue. and also Applying it dose work [SubivisionSurface_Bug.blend](https://archive.blender.org/developer/F12850828/SubivisionSurface_Bug.blend)
Author

Added subscriber: @shmuel

Added subscriber: @shmuel

#95564 was marked as duplicate of this issue

#95564 was marked as duplicate of this issue

Added subscriber: @MadMinstrel

Added subscriber: @MadMinstrel

I've noticed this as well. It only happens when you turn on GPU Subdivision. Works fine if you turn it back off.

I've noticed this as well. It only happens when you turn on GPU Subdivision. Works fine if you turn it back off.

Added subscriber: @Ace_Dragon

Added subscriber: @Ace_Dragon

This has already been logged.
https://developer.blender.org/T94479

Amazingly though, I have not seen a patch or a commit anywhere that even attempts to fix it. The core team is usually rather quick to address such issues.

This has already been logged. https://developer.blender.org/T94479 Amazingly though, I have not seen a patch or a commit anywhere that even attempts to fix it. The core team is usually rather quick to address such issues.
Member

Closed as duplicate of #94479

Closed as duplicate of #94479
Member

Added subscriber: @HooglyBoogly

Added subscriber: @HooglyBoogly
Member

Thanks for the report. Since it's a duplicate, I'll merge this one to the existing task.

Thanks for the report. Since it's a duplicate, I'll merge this one to the existing task.
Member

Oops, already done and I didn't reload :)

Oops, already done and I didn't reload :)
Thomas Dinges added this to the 3.1 milestone 2023-02-08 15:52:54 +01:00
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Reference: blender/blender#95566
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