Geometry Nodes: Point Instance Node crashing after deleting instancer from Collections #87666

New Issue

Aleksandr · 2021-04-20T21:37:29+02:00

Aleksandr commented

2021-04-20 21:37:29 +02:00

System Information
Operating system: Linux-4.15.0-142-generic-x86_64-with-glibc2.27 64 Bits
Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 450.102.04

Blender Version
Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-04-19 20:39, hash: 0566ebdebe
Worked: (newest version of Blender that worked as expected)

Short description of error
Blender crashing when I deleting instancer from collection.

Exact steps for others to reproduce the error
Open Geo_Crash.blend - select "Sphere" from "Instance" collection - delete Sphere.

Screencast-2021-04-20_22.28.22.mp4
Geo_Crash.blend
Geo_Crash.crash.txt

**System Information** Operating system: Linux-4.15.0-142-generic-x86_64-with-glibc2.27 64 Bits Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 450.102.04 **Blender Version** Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-04-19 20:39, hash: `0566ebdebe` Worked: (newest version of Blender that worked as expected) **Short description of error** Blender crashing when I deleting instancer from collection. **Exact steps for others to reproduce the error** Open Geo_Crash.blend - select "Sphere" from "Instance" collection - delete Sphere. [Screencast-2021-04-20_22.28.22.mp4](https://archive.blender.org/developer/F10030427/Screencast-2021-04-20_22.28.22.mp4) [Geo_Crash.blend](https://archive.blender.org/developer/F10030425/Geo_Crash.blend) [Geo_Crash.crash.txt](https://archive.blender.org/developer/F10030433/Geo_Crash.crash.txt)

Aleksandr commented

2021-04-20 21:37:29 +02:00

Added subscriber: @viadvena

Himanshi Kalra commented

2021-04-20 22:00:51 +02:00

Added subscriber: @Calra

Himanshi Kalra commented

2021-04-20 22:00:51 +02:00

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

Himanshi Kalra commented

2021-04-20 22:00:51 +02:00

I can confirm the crash on Windows 10 3.0.0 Alpha.
The stack traces seem to be different. Here is from windows.

Geo_Crash.crash.txt

I can confirm the crash on Windows 10 3.0.0 Alpha. The stack traces seem to be different. Here is from windows. [Geo_Crash.crash.txt](https://archive.blender.org/developer/F10030469/Geo_Crash.crash.txt)

Himanshi Kalra commented

2021-04-20 22:20:16 +02:00

Investigating further:
The issue seems to be deleting the object from Instance collection while Point Instance is still using it.

To reproduce the issue, some points:
In the Point Instance Node:
Note 1: It only happens when instance object is taken as Collection.
Note 2: Make sure in the Object section, the object-to-be-deleted (Sphere) is not selected.
Note 2: Make sure to uncheck the Whole Collection box otherwise it won't crash.

Here is a simplified blend file.
Steps (same as above): Delete the Sphere from Instance collection.
point_instance_collection_crash.blend
Edit: Updated bug file

Investigating further: The issue seems to be deleting the object from Instance collection while `Point Instance` is still using it. To reproduce the issue, some points: In the Point Instance Node: Note 1: It only happens when instance object is taken as Collection. Note 2: Make sure in the Object section, the object-to-be-deleted (Sphere) is not selected. Note 2: Make sure to uncheck the `Whole Collection` box otherwise it won't crash. Here is a simplified blend file. Steps (same as above): Delete the `Sphere` from Instance collection. [point_instance_collection_crash.blend](https://archive.blender.org/developer/F10032592/point_instance_collection_crash.blend) Edit: Updated bug file

Himanshi Kalra changed title from ~~Geometry Nodes Crash after instancer deleting~~ to Geometry Nodes: Point Instance Node crashing after deleting instancer from Collections

2021-04-20 22:21:10 +02:00

Himanshi Kalra commented

2021-04-21 20:04:16 +02:00

Changing the Priority to high because of reproducible crash. Cannot yet comment on regressability.

Jacques Lucke commented

2021-04-22 15:48:25 +02:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2021-04-22 15:48:25 +02:00

I'm investigating this right now. The issue seems similar to the issue that moving objects out of a collection does not update geometry nodes or the boolean modifier.

blender-admin commented

2021-04-26 16:35:22 +02:00

This issue was referenced by b67fe05d4b

This issue was referenced by b67fe05d4bea2d3c9efbd127e9d9dc3a897e89e6

Jacques Lucke commented

2021-04-26 16:36:05 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Jacques Lucke closed this issue

2021-04-26 16:36:05 +02:00

Jacques Lucke self-assigned this 2021-04-26 16:36:05 +02:00

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Geometry Nodes: Point Instance Node crashing after deleting instancer from Collections #87666