GPU subdivision does not support wireframe subdivision (no faces) #94729
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Reference: blender/blender#94729
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System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1080 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 497.29
Blender Version
Broken: version: 3.1.0 Alpha, branch: master, commit date: 2022-01-06 23:21, hash:
e6ca0b33e9Short description of error
Normally you can subdivide a wire mesh. For example a square with no filling face to create a sort of circle.
It appears the GPU subdivision code doesn't support this case yet
Exact steps for others to reproduce the error
Subsurf Wire.blend
With GPU Subdivision OFF it will look like this
But with GPU Subdivision enabled it turns back to a square
Added subscriber: @zanqdo
#94511 was marked as duplicate of this issue
Added subscriber: @deadpin
Changed status from 'Needs Triage' to: 'Confirmed'
The statistics will show that the #verts in the scene are increasing but the actual shape in the viewport is not updated.
Added subscribers: @David-Cros, @kevindietrich, @LucasVeber
Added subscriber: @brecht
Tagging high priority bugs with 3.1 so we get an overview of the work remaining for that release. If the module owner does not consider this planned for 3.1, please change the tag to 3.2 or lower the priority to normal.
This issue was referenced by
6883c47bb5Changed status from 'Confirmed' to: 'Resolved'