Scene update bug #42722

New Issue

Alexey · 2014-11-25T20:05:55+01:00

Alexey commented

2014-11-25 20:05:55 +01:00

System Information
windows7 64
ASUS ATI Radeon HD6870

Blender Version
Broken: (All)
Worked: (None)

Short description of error

Exact steps for others to reproduce the error

open this file, select plane and try to select for this plane any mesh - all this meshes don't have users, but was saved, try to select material - materials was saved, but don't have users,
we can revert, close and open again many times - materails and meshes will be saved.
try to add gruop instance - we will have all this groups is empty.

System Information windows7 64 ASUS ATI Radeon HD6870 Blender Version Broken: (All) Worked: (None) **Short description of error** ![scene1.png](https://archive.blender.org/developer/F126585/scene1.png) ![scene2.png](https://archive.blender.org/developer/F126587/scene2.png) ![scene3.png](https://archive.blender.org/developer/F126589/scene3.png) ![scene4.png](https://archive.blender.org/developer/F126591/scene4.png) ![scene5.png](https://archive.blender.org/developer/F126593/scene5.png) ![scene6.png](https://archive.blender.org/developer/F126602/scene6.png) **Exact steps for others to reproduce the error** ![scene6.png](https://archive.blender.org/developer/F126604/scene6.png) open this file, select plane and try to select for this plane any mesh - all this meshes don't have users, but was saved, try to select material - materials was saved, but don't have users, we can revert, close and open again many times - materails and meshes will be saved. try to add gruop instance - we will have all this groups is empty.

Alexey commented

2014-11-25 20:05:55 +01:00

Changed status to: 'Open'

Alexey commented

2014-11-25 20:05:55 +01:00

Added subscriber: @Inwader77

Alexey commented

2014-11-25 20:10:15 +01:00

scene.blend

[scene.blend](https://archive.blender.org/developer/F126608/scene.blend)

Lukas Tönne commented

2014-11-26 16:36:05 +01:00

Added subscriber: @LukasTonne

Lukas Tönne commented

2014-11-26 16:36:05 +01:00

I can't see the issue here. Sure it's a bit awkward how the user counting/freeing works in Blender, but that's not really broken and has been like that from the beginning.

The only problem i can see is that the user count does not always return to 0 when a block is not referenced any longer; in that case it will be saved once more when saving the file, get a user count of 0 on reloading, and finally be discarded for good on second save. This is slightly broken, but not critical and not simple to fix either, because of how the undo system works (i guess you mean undo by "revert project"?). This is a ToDo for us, we can't fix it in the short term unfortunately ...

I can't see the issue here. Sure it's a bit awkward how the user counting/freeing works in Blender, but that's not really broken and has been like that from the beginning. The only problem i can see is that the user count does not always return to 0 when a block is not referenced any longer; in that case it will be saved once more when saving the file, get a user count of 0 on reloading, and finally be discarded for good on second save. This is slightly broken, but not critical and not simple to fix either, because of how the undo system works (i guess you mean undo by "revert project"?). This is a ToDo for us, we can't fix it in the short term unfortunately ...

Lukas Tönne commented

2014-11-26 16:36:08 +01:00

Removed subscriber: @LukasTonne

Lukas Tönne commented

2014-11-26 16:36:14 +01:00

Added subscriber: @LukasTonne

Hans Goudey commented

2024-03-03 04:08:59 +01:00

Closing since this is not a bug, it's just how removal of unused data-blocks works in Blender-- it happens on save. While this design is arguably not great, changing it is a larger design topic.

Hans Goudey closed this issue

2024-03-03 04:09:02 +01:00

Blender Bot added

and removed

labels 2024-03-03 04:09:04 +01:00

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