Regression: Crash when extruding a creased vertex in GPU subdivision #103396
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Reference: blender/blender#103396
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System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits <-This is the string Blender's Report Bug functionality provided, but actually, I'm on Windows 11 21H2. Another bug?
Graphics card: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 527.56
Blender Version
Broken: version: 3.4.1, branch: blender-v3.4-release, commit date: 2022-12-20 08:50, hash:
ef9ca44deeWorked: 3.3.2
Caused by
b247588dc0Short description of error
Subsurf Vertex crease functionality doesn't work after instancing/realizing instances.
Also, while preparing a file for this report, I tried to use the old mesh trick for Vertex crease and discovered a CTD on extrude.
Exact steps for others to reproduce the error
crease_bug.blend
Attaching logs:
crease_bug.crash.txt
blender_debug_output.txt
blender_system_info.txt
Added subscriber: @MadMinstrel
Added subscriber: @OmarEmaraDev
Changed status from 'Needs Triage' to: 'Needs User Info'
The vertices not being creases is a known limitation. As for the crash, I can reproduce it myself.
Please open Blender's installation directory and double click on the
blender_debug_gpu.cmd. This will start Blender in debug mode and create log files. Try to reproduce the error again. Once it crashes or you close Blender manually the Windows Explorer should open and show you up to two files, a debug log and the system information. Add them to your bug report by clicking on the upload button as shown in the screenshot below or via drag and drop. Please also upload the crash log located inC:\Users\[your username]\AppData\Local\Temp\[project name].crash.txt(or simply type%TEMP%into the path bar of the Windows Explorer).Added subscriber: @lichtwerk
Doesnt crash in 3.3.2
Sure thing. Logs added. And indeed, can confirm it doesn't crash with 3.3.
Vertex Crease not working on Geonodes instances / Crash on extrudeto Crash when extruding a creased vertex in GPU subdivisionIt seems the crash happens in GPU subdivision code. Is this related to instancing or Geometry Nodes specifically or can you reproduce the crash without the Geometry Nodes modifier?
It does not crash without the Geonodes modifier.
It also does not crash if I turn off the modifier, make the extrude, then turn it on again. It only crashes if you press E in edit mode with the modifier turned on.
Changed status from 'Needs User Info' to: 'Confirmed'
I am bisecting this as we speak
Added subscriber: @brecht
Caused by
b247588dc0CC @brecht
Crash when extruding a creased vertex in GPU subdivisionto Regression: Crash when extruding a creased vertex in GPU subdivisionThis issue was referenced by
ddb30c4a02Changed status from 'Confirmed' to: 'Resolved'