Crashes with background scenes #53164

New Issue

Dalai Felinto · 2017-10-25T22:18:56+02:00

Dalai Felinto commented

2017-10-25 22:18:56 +02:00

Blender Version
Broken: 86899c1adf
Worked: ???

Short description of error
Crash when saving and re-opening files with background set.

Exact steps for others to reproduce the error

Create a file with two scenes, go to the main one, and set the second one as background.
Save and re-open.

Or open: pre-set.blend

Go to scene panel and set the "Scene" as background for the current scene (Scene.001)

Full crash: P548
This is a crash inside an assert because base->collection_properties is NULL for the background scene until you "visit" the scene once.

**Blender Version** Broken: 86899c1adf Worked: ??? **Short description of error** Crash when saving and re-opening files with background set. **Exact steps for others to reproduce the error** * Create a file with two scenes, go to the main one, and set the second one as background. * Save and re-open. Or open: [pre-set.blend](https://archive.blender.org/developer/F1066235/pre-set.blend) * Go to scene panel and set the "Scene" as background for the current scene (Scene.001) Full crash: [P548](https://archive.blender.org/developer/P548.txt) This is a crash inside an assert because `base->collection_properties` is NULL for the background scene until you "visit" the scene once.

Dalai Felinto commented

2017-10-25 22:18:56 +02:00

Changed status to: 'Open'

Dalai Felinto commented

2017-10-25 22:18:56 +02:00

Added subscriber: @dfelinto

Dalai Felinto commented

2017-10-25 22:21:37 +02:00

Added subscriber: @Sergey
Removed subscriber: @dfelinto

Added subscriber: @Sergey Removed subscriber: @dfelinto

Sergey Sharybin was assigned by Dalai Felinto

2017-10-25 22:40:26 +02:00

Dalai Felinto commented

2017-10-25 22:40:26 +02:00

Added subscriber: @dfelinto
Removed subscriber: @Sergey

Added subscriber: @dfelinto Removed subscriber: @Sergey

Dalai Felinto commented

2017-10-25 22:40:26 +02:00

@Sergey I found the problem:
BKE_layer_eval_layer_collection_post() is never called for the background set scene layers.

And since we don't store evaluated data (e.g., base->collection_properties) in the .blend file, the data is never there when we need it.

@Sergey I found the problem: `BKE_layer_eval_layer_collection_post()` is never called for the background set scene layers. And since we don't store evaluated data (e.g., base->collection_properties) in the `.blend` file, the data is never there when we need it.

Dalai Felinto commented

2017-10-25 22:55:04 +02:00

To simplify debugging I recommend a file with the background scene already set: set.blend

And if you want to prevent the crash while debugging: P549

To simplify debugging I recommend a file with the background scene already set: [set.blend](https://archive.blender.org/developer/F1066324/set.blend) And if you want to prevent the crash while debugging: [P549](https://archive.blender.org/developer/P549.txt)

Sergey Sharybin commented

2017-10-26 09:51:18 +02:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2017-10-26 09:51:18 +02:00

Sergey Sharybin commented

2017-10-26 09:51:18 +02:00

Committed workaround. Please keep in mind, this is a subject of reworking at this moment. So rather not accept any bugs about this before everything is implemented according to a design.

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Crashes with background scenes #53164