Crash with Geometry Nodes changing UVs and Edit Mode #99296

New Issue

Steffen Dünner · 2022-06-30T14:26:18+02:00

Steffen Dünner commented

2022-06-30 14:26:18 +02:00

System Information
Operating system: Linux-5.15.0-33-generic-x86_64-with-glibc2.31 64 Bits
Graphics card: NVIDIA GeForce RTX 2070 Super/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.48.07

Blender Version
Broken: version: 3.3.0 Alpha, branch: master, commit date: 2022-06-30 10:54, hash: 0f22b5599a

Short description of error
Blender instantly closes / crashes when switching to Edit Mode when the object has a Geometry Nodes modifier that outputs UVs. At first I thought it was the new UV Geometry Nodes fault (Pack UV Islands, UV Unwrap) but the I noticed that as soon as a GN modifier tries to output UVs and you switch to Edit Mode Blender crashes.

Exact steps for others to reproduce the error

Open the attached file
UVMap_Crash_v01.blend
It's a simple cube with a Principled shader (base color = generated UV grid, but that doesn't matter) and a GN modifier that reads the default UVMap coming with the cube, packs its UV islands and writes it back to UVMap attribute.
Press tab to go to Edit Mode
Crash

It only happens when the simple material accessing the UVs is assigned. If no material is assigned I can switch to Edit Mode without crash.

**System Information** Operating system: Linux-5.15.0-33-generic-x86_64-with-glibc2.31 64 Bits Graphics card: NVIDIA GeForce RTX 2070 Super/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.48.07 **Blender Version** Broken: version: 3.3.0 Alpha, branch: master, commit date: 2022-06-30 10:54, hash: `0f22b5599a` **Short description of error** Blender instantly closes / crashes when switching to Edit Mode when the object has a Geometry Nodes modifier that outputs UVs. At first I thought it was the new UV Geometry Nodes fault (Pack UV Islands, UV Unwrap) but the I noticed that as soon as a GN modifier tries to output UVs and you switch to Edit Mode Blender crashes. **Exact steps for others to reproduce the error** - Open the attached file [UVMap_Crash_v01.blend](https://archive.blender.org/developer/F13242408/UVMap_Crash_v01.blend) - It's a simple cube with a Principled shader (base color = generated UV grid, but that doesn't matter) and a GN modifier that reads the default UVMap coming with the cube, packs its UV islands and writes it back to UVMap attribute. - Press tab to go to Edit Mode - Crash It only happens when the simple material accessing the UVs is assigned. If no material is assigned I can switch to Edit Mode without crash.

Steffen Dünner commented

2022-06-30 14:26:18 +02:00

Added subscriber: @SteffenD

blender-admin commented

2022-06-30 14:26:18 +02:00

#99452 was marked as duplicate of this issue

blender-admin commented

2022-06-30 14:26:18 +02:00

#99366 was marked as duplicate of this issue

Pratik Borhade commented

2022-07-01 12:08:05 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-07-01 12:22:35 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Pratik Borhade commented

2022-07-01 12:22:35 +02:00

Added subscriber: @aleksijuvani

Aleksi Juvani commented

2022-07-02 16:53:36 +02:00

Added subscribers: @HooglyBoogly, @kevindietrich, @ThomasDinges

Aleksi Juvani commented

2022-07-02 16:53:36 +02:00

@HooglyBoogly @kevindietrich @ThomasDinges I was able to reproduce this with a simple geometry node setup that outputs the vertex index to an integer attribute and a shader that reads it back, so it looks like a more general issue. I ran a bisect and the commit responsible seems to be 6c3965c027 (see also #99323).

@HooglyBoogly @kevindietrich @ThomasDinges I was able to reproduce this with a simple geometry node setup that outputs the vertex index to an integer attribute and a shader that reads it back, so it looks like a more general issue. I ran a bisect and the commit responsible seems to be 6c3965c027 (see also #99323).

Hans Goudey commented

2022-07-04 02:38:08 +02:00

Added subscriber: @erik85