Subdivision Surface modifier generates artifacts with Mean Crease=1 #58994
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Reference: blender/blender#58994
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System Information
Operating system: Kubuntu 18.04
Graphics card: GTX 960
Blender Version
Broken: 2.8 (
0fe5a78983)Worked: 2.79b
Short description of error
I have no idea if this is a bug, something that has not yet been implemented or bad configuration on my part. The only thing I can say is that apparently old subsurf in 2.79b with similar configuration does not produce these artifacts. You note that artifacts disappear even when Mean Crease for selected edges in the .blend file is set to a value of 0.9999...
But if you enter 1 value, artifacts on edges appear.
SubSurf artifact.blend
Exact steps for others to reproduce the error
Open blend file and you see the outer edges of the selected object.
Added subscriber: @YAFU
#60750 was marked as duplicate of this issue
Added subscriber: @Alrob
Added subscribers: @WilliamReynish, @Sergey
IMO the simple example of a subdivided cube with creased edges shows the issue better:
OpenSubdiv_Normals_bug_cube.blend
This issue was referenced by
e6ad4ec3fcChanged status from 'Open' to: 'Resolved'