Multiresolution modifier creates spikes when subdividing ngon meshes. #77261
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Reference: blender/blender#77261
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System Information
Operating system: Linux-5.6.14-300.fc32.x86_64-x86_64-with-fedora-32-Thirty_Two 64 Bits, Windows
Graphics card: GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.82
Blender Version
Broken: version: Bisected to
4542b50afcWorked: version: Before
4542b50afcShort description of error
Multiresolution modifier creates spikes when CC subdividing ngon meshes.
Exact steps for others to reproduce the error
Add cylinder or cone mesh, add multiresolution modifier on it, and subdivide with the default Catmull Clark (level 2-3 is enough to show the mess-up). See attached.
Occurs in both Object and Sculpt modes.
multires.blend
2.83.8 .blend
T829005_2.83_example.blend
Added subscriber: @Sekhar
#82905 was marked as duplicate of this issue
#82487 was marked as duplicate of this issue
Changed status from 'Needs Triage' to: 'Confirmed'
Added subscriber: @YAFU
Added subscribers: @Mobin-2, @mano-wii, @lichtwerk
Added subscribers: @Foaly, @EAW
Multiresolution modifier messes up meshto Multiresolution modifier creates spikes when subdividing ngon meshes.Added subscriber: @Sergey
@Sergey, Bisecting shows
4542b50afcto be the responsible commit.I'll have a look.
This issue was referenced by
82cc21d5e4Changed status from 'Confirmed' to: 'Resolved'