Crash when assigning via python a collection to a GeometryNodes modifier. #88594

New Issue

Lukas Sabaliauskas · 2021-05-26T13:29:22+02:00

2021-05-26 13:29:22 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 452.11

Blender Version
Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-05-15 16:29, hash: 610c0ecc3b

Short description of error
Blender crashes when I assign an unchecked collection that contains at least one mesh and one curve to a GeometryNodes modifer via python (script or python console)

Exact steps for others to reproduce the error

On a new blend file :

Add a new GeometryNodes modifier to the cube.
Add a "point instance" node with the collection option turned on, and plug its input "Collection" to the "Group input".
Now we can access this collection via the modifer.
Create a new collection with a curve object (Bezier for example)
Uncheck the collection
Finally assign this new collection to the modifer via python :
>>> bpy.data.objects["Cube"].modifiers["GeometryNodes"]['Input_5'] = bpy.data.collections["Collection 2"]
When trying to interact with our Cube (move/change the modifer/go into edit mode), blender crashes.

On the blend file:
crashGeoNodesPythonCollectionCurve.blend

Execute the script
Move the cube

Notes :

Assigning the collection manually works.
Unchecked collections with only mesh objects work.

Thanks!

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 452.11 **Blender Version** Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-05-15 16:29, hash: `610c0ecc3b` **Short description of error** Blender crashes when I assign an unchecked collection that contains at least one mesh and one curve to a GeometryNodes modifer via python (script or python console) **Exact steps for others to reproduce the error** On a new blend file : - Add a new GeometryNodes modifier to the cube. - Add a "point instance" node with the collection option turned on, and plug its input "Collection" to the "Group input". - Now we can access this collection via the modifer. - Create a new collection with a curve object (Bezier for example) - Uncheck the collection - Finally assign this new collection to the modifer via python : - `>>> bpy.data.objects["Cube"].modifiers["GeometryNodes"]['Input_5'] = bpy.data.collections["Collection 2"]` - When trying to interact with our Cube (move/change the modifer/go into edit mode), blender crashes. On the blend file: [crashGeoNodesPythonCollectionCurve.blend](https://archive.blender.org/developer/F10142974/crashGeoNodesPythonCollectionCurve.blend) ![crashGeoNodesPythonCollectionCurve.png](https://archive.blender.org/developer/F10142975/crashGeoNodesPythonCollectionCurve.png) - Execute the script - Move the cube Notes : - Assigning the collection manually works. - Unchecked collections with only mesh objects work. Thanks!

Lukas Sabaliauskas commented

2021-05-26 13:29:22 +02:00

Added subscriber: @Trukas

Pratik Borhade commented

2021-05-26 14:49:58 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2021-05-26 14:49:58 +02:00

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

Pratik Borhade commented

2021-05-26 14:49:58 +02:00

I can reproduce the crash for 3.0.0 alpha, Hash: 43153e2324, commit date: 2021-05-24.

Crash is reproducible for 2.93.0 and 2.92.0 as well.

I can reproduce the crash for 3.0.0 alpha, Hash: `43153e2324`, commit date: `2021-05-24`. Crash is reproducible for 2.93.0 and 2.92.0 as well.

Jacques Lucke self-assigned this 2021-06-21 13:18:11 +02:00

Jacques Lucke commented

2021-11-03 13:28:09 +01:00

I can't reproduce it anymore, can you?

Pratik Borhade commented

2021-11-03 17:34:07 +01:00

I am able to reproduce on 2.93.6 (0930a70e8110) but not on master and blender-v3.0-release

Will search for the fix tomorrow to backport it

I am able to reproduce on 2.93.6 (`0930a70e8110`) but not on master and `blender-v3.0-release` Will search for the fix tomorrow to backport it

Pratik Borhade commented

2021-11-04 11:12:41 +01:00

Commit that fixes the crash on master: b9febb54a4

I don't think this commit will be backported to 2.93 (that will introduce bunch of new issues in LTS)

Commit that fixes the crash on master: b9febb54a4 I don't think this commit will be backported to 2.93 (that will introduce bunch of new issues in LTS)

Jacques Lucke commented

2021-11-04 11:31:42 +01:00

Changed status from 'Confirmed' to: 'Archived'

Jacques Lucke closed this issue

2021-11-04 11:31:42 +01:00

Jacques Lucke commented

2021-11-04 11:31:42 +01:00

Thanks for checking. Feels unlikely that this is going to be backported to 2.93 indeed. So I'm closing this.

Thomas Dinges added this to the 2.93 LTS milestone 2023-02-07 18:46:14 +01:00

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Crash when assigning via python a collection to a GeometryNodes modifier. #88594