GPU subdivision causes problems in generated Texture Coordinate with Cycles #96596
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Reference: blender/blender#96596
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System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.65
Blender Version
Broken: version: 3.1.0, branch: master, commit date: 2022-03-08 18:16, hash:
c77597cd0eWorked: None, since this is a new feature
Short description of error
In combination with some modifiers (like Armature or Cast), GPU Accelerated Subdivision breaks the Generated Texture Coordinate
Exact steps for others to reproduce the error
Open attached .blend file
Turn on GPU Subdivision in Preferences > Viewport
turn on Cycles or Eevee Rendered Shading (both will generate different problems)
GPU Subdivision Bug.blend
Added subscriber: @bjen
This issue was referenced by
342e12d6d9#98092 was marked as duplicate of this issue
#97857 was marked as duplicate of this issue
Added subscriber: @mano-wii
Changed status from 'Needs Triage' to: 'Needs User Info'
Is it just a problem with NVidea?
I don't see anything unusual here with an AMD Radeon (See GIF)
Could be. All the computers I tested it on had an RTX 3080 Ti. Just tested it on an RTX 2080 Super and that doesnt seem to cause issues, so it appears to be very specific for certain cards even within the NVidia catalog.
Added subscriber: @Alaska
Changed status from 'Needs User Info' to: 'Confirmed'
I can reproduce the issue with the setup listed below.
An extra note for reproducing the issue, I had to change the
Factorsetting on theCastmodifier which the monkey head has. If I didn't change it, I couldn't reproduce issues.System Information
Operating system: Linux-5.16.0-3-amd64-x86_64-with-glibc2.33 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 510.54
Blender version: 3.2.0 Alpha, branch: master, commit date: 2022-03-19 07:26, hash:
3e16f3b3efAdded subscribers: @kevindietrich, @lichtwerk
CC @kevindietrich : mind checking?
GPU Accelerated Subdivision causes problems in generated Texture Coordinateto GPU subdivision causes problems in generated Texture CoordinateTalked to @kevindietrich , setting to High prio (since it is a bug in a new feature according to the playbook
The EEVEE part should be fixed with
3e25561d51. The Cycles part seems to be a bit more involved to fix.Added subscriber: @AdrianoDElia
GPU subdivision causes problems in generated Texture Coordinateto GPU subdivision causes problems in generated Texture Coordinate with CyclesAdded subscribers: @egado, @ThomasDinges
Changed status from 'Confirmed' to: 'Resolved'