Extra face dots in UV Layout editor (GPU subdivision OFF, On Cage OFF in Subdivision modifier make a difference) #106197
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Reference: blender/blender#106197
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System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: Intel(R) HD Graphics 4600 Intel 4.3.0 - Build 20.19.15.4835
Blender Version
Broken: version: 3.4.1, branch: blender-v3.4-release, commit date: 2022-12-19 17:00, hash:
rB55485cb379f7Broken: version: 3.1
Worked: not since GPU subdivision was introduced (so in a way, it was working in 3.0)
Short description of error
Extra random faces appear in the UV Layout editor
Exact steps for others to reproduce the error
On Cage - Adjust edit cage to modifier resulton the SubSurf modifier.In the attached file, toggle from face select mode to vertex select mode and back to face select mode. (Might have to repeat 5-6 times) Extra faces appear in the UV Layout editor. Also see here: [https://blenderartists.org/t/ghost-faces-while-working-with-uv-layout/1457172]
just tested with:
version: 3.5.0 Release Candidate, branch: blender-v3.5-release, commit date: 2023-03-27 18:51, hash:
ba4442ef41, type: releasebuild date: 2023-03-28, 01:08:36
platform: 'Windows-10-10.0.19044-SP0'
I had to toggle from face select to vertex select and back maybe 10x, then the problem appeared again.
Reminds me of #104652 [which should be fixed in 3.5 already though]
But I can also reproduce this.
I can only repro this if
GPU SubdivisioninPreferences>Viewport>Subdivisionis OFF, can you confirm @revolt_randy ?This does not seem to be caused by the same commit as the one that caused #104652, this seems to be around much longer, will check...
Extra 'ghost' faces in UV Layout editorto Extra faces dots in UV Layout editor (GPU subdivision OFF)Extra faces dots in UV Layout editor (GPU subdivision OFF)to Extra face dots in UV Layout editor (GPU subdivision OFF)@lichtwerk - Thanks for taking a look at this!
If
Preferences->Viewport->Subdivisionis off, the affect doesn't appears as bad, but I still see the face dots. With it on, it appears to make the amount of face dots increase.Additionally, when I move UV islands around in the UV Layout editor, the location & number of face dots completely change randomly. Some faces are selected, some are not.
It does not happen at all if I turn off
On Cage - Adjust edit cage to modifier resulton the SubSurf modifier.I don't know what I did, but I didn't mean to close this...
Extra face dots in UV Layout editor (GPU subdivision OFF)to Extra face dots in UV Layout editor (GPU subdivision OFF, On Cage OFF in Subdivision modifier make a difference)The problem only seems to occur if the GPU subdivision is disabled, but if it is enabled, the mesh edge lines are drawn thicker in the 3D view.