Stopping Animation in Some Scenes Immediately Crashes Blender #103008

New Issue

Omar · 2022-12-08T05:00:03+01:00

Omar commented

2022-12-08 05:00:03 +01:00

System Information
Operating system: Linux-5.15.0-52-generic-x86_64-with-glibc2.35 64 Bits
Graphics card: NVIDIA GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.65.01

Blender Version
Broken: version: 3.4.0, branch: blender-v3.4-release, commit date: 2022-12-06 18:46, hash: a95bf1ac01
Caused by 42b51bf6a9

Short description of error
I have a particle animation in one scene, that is using other scenes as background. When I switch to another scene, starting then stopping the animation player crashes blender every time.

Exact steps for others to reproduce the error
[Based on the default startup or an attached .blend file{F14044147}
From the Attached file, switch to another scene, ex Bushes.
Start the animation player, then stop. Blender crashes.

**System Information** Operating system: Linux-5.15.0-52-generic-x86_64-with-glibc2.35 64 Bits Graphics card: NVIDIA GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.65.01 **Blender Version** Broken: version: 3.4.0, branch: blender-v3.4-release, commit date: 2022-12-06 18:46, hash: `a95bf1ac01` Caused by 42b51bf6a9 **Short description of error** I have a particle animation in one scene, that is using other scenes as background. When I switch to another scene, starting then stopping the animation player crashes blender every time. **Exact steps for others to reproduce the error** [Based on the default startup or an attached .blend file{[F14044147](https://archive.blender.org/developer/F14044147/HouseSprites.blend)} From the Attached file, switch to another scene, ex Bushes. Start the animation player, then stop. Blender crashes.

Omar commented

2022-12-08 05:00:03 +01:00

Added subscriber: @Omer-Almadani

blender-admin commented

2022-12-08 05:00:03 +01:00

#103162 was marked as duplicate of this issue

blender-admin commented

2022-12-08 05:00:03 +01:00

#103245 was marked as duplicate of this issue

blender-admin commented

2022-12-08 05:00:03 +01:00

#103201 was marked as duplicate of this issue

Richard Antalik commented

2022-12-08 12:40:04 +01:00

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

Richard Antalik commented

2022-12-08 13:52:16 +01:00

Added subscribers: @mont29, @Sergey, @iss

Richard Antalik commented

2022-12-08 13:52:16 +01:00

@Sergey, @mont29 Seems, that scenes used as background set are not evaluated and DEG_get_evaluated_scene will return NULL. Looking at code, this seems to be rather desired behavior, but I was not expecting this due to assert which suggests that I will get COW pointer at least. Do you have any suggestions?

@Sergey, @mont29 Seems, that scenes used as background set are not evaluated and `DEG_get_evaluated_scene` will return `NULL`. Looking at code, this seems to be rather desired behavior, but I was not expecting this due to assert which suggests that I will get COW pointer at least. Do you have any suggestions?

Cassidy Graces Incandela commented

2022-12-10 09:10:09 +01:00

Added subscriber: @cassidy

Cassidy Graces Incandela commented

2022-12-10 09:10:09 +01:00

Bug reproducible in;
Operating system: Windows-10-10.0.19044-SP0 64 Bits
version: 3.4.0, branch: blender-v3.4-release, commit date: 2022-12-06 18:46, hash: a95bf1ac01

Bug reproducible in; Operating system: Windows-10-10.0.19044-SP0 64 Bits version: 3.4.0, branch: blender-v3.4-release, commit date: 2022-12-06 18:46, hash: `a95bf1ac01`

Kuf Geo commented

2022-12-11 03:45:05 +01:00

Added subscriber: @kufgeo

Brecht Van Lommel commented

2022-12-12 17:37:33 +01:00

Added subscriber: @brecht

Brecht Van Lommel commented

2022-12-12 17:37:33 +01:00

@iss, even disregarding background scenes, there can be scenes that are not shown in any window, and so there would be no point evaluating them. Stopping sound playback should not cause such scenes to be evaluated either.

It should be enough to loop over windows and the scenes and view layers used in them. This is assuming that when a scene becomes no longer used in any window, audio playback is stopped. Which you may want to verify if it's working correctly now.

@iss, even disregarding background scenes, there can be scenes that are not shown in any window, and so there would be no point evaluating them. Stopping sound playback should not cause such scenes to be evaluated either. It should be enough to loop over windows and the scenes and view layers used in them. This is assuming that when a scene becomes no longer used in any window, audio playback is stopped. Which you may want to verify if it's working correctly now.

Richard Antalik commented

2022-12-12 18:33:11 +01:00

In #103008#1459195, @brecht wrote:
It should be enough to loop over windows and the scenes and view layers used in them. This is assuming that when a scene becomes no longer used in any window, audio playback is stopped. Which you may want to verify if it's working correctly now.

This was my original intention. There is also alternative solution to stop playback globally for all sounds. So I think, that best would be to revert the change and re-evaluate new solution.

> In #103008#1459195, @brecht wrote: > It should be enough to loop over windows and the scenes and view layers used in them. This is assuming that when a scene becomes no longer used in any window, audio playback is stopped. Which you may want to verify if it's working correctly now. This was my original intention. There is also alternative solution to stop playback globally for all sounds. So I think, that best would be to revert the change and re-evaluate new solution.

Pratik Borhade commented

2022-12-14 07:49:55 +01:00

Added subscribers: @yozba, @PratikPB2123