Multires Unsubdivide freezes Blender with hidden geoemtry #99887
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Reference: blender/blender#99887
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System Information
Operating system: Linux-5.15.0-41-generic-x86_64-with-glibc2.35 64 Bits
Graphics card: Quadro GP100/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 510.73.05
Blender Version
Broken: version: 3.3.0 Alpha, branch: master, commit date: 2022-07-21 08:18, hash:
ee3facd087
Short description of error
In the Multiresolution modifier the buttons "Unsubdivide" and "Rebuild Subdivisions" do a similar operation.
When having any faces in edit/sculpt mode hidden though, using any of these operators will freeze Blender.
Exact steps for others to reproduce the error
#99887.blend
Added subscriber: @JulienKaspar
Changed status from 'Needs Triage' to: 'Confirmed'
I was able to reproduce this on multiple Linux machines. Not sure when this was introduced. Could be an issue that was there since the feature was added.
Added subscriber: @JosephEagar
@JosephEagar Can you take a look at this?
Is this still happening? I wasn't able to reproduce it, Hans may have fixed it in his recent hiding patches.
@JosephEagar Yes I can still reproduce the crash following the steps above.
Can confirm this still happens, just repro on 4.2 main and MacOS.
Just to be sure: what is the expected result of this operation?
to process the mesh ignoring the edit mode hidden faces?