Material change not updating in the link of an override #83046

New Issue

Simon Thommes · 2020-11-26T11:46:03+01:00

Simon Thommes commented

2020-11-26 11:46:03 +01:00

System Information
Operating system: Linux-5.4.0-7642-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: Quadro RTX 6000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 455.28

Blender Version
Broken: version: 2.92.0 Alpha, branch: master, commit date: 2020-11-26 10:08, hash: 8a2270efc5
Worked: unknown
Short description of error
The material change of a linked in, overridden character is not updated as expected.

Screenshot animation file (character linked and overridden from character file):

Screenshot lighting file (linked from animation file):

I am not sure this is an actual bug, just a niche case that is not covered yet or even expected behaviour.
However, I was not able to reproduce this error with a simple test case. Rebuilding the file structure with a simple cube character showed no issue propagating material changes.
(For the sake of completeness, here the test case without the error: linked_overrides_material_propagation.zip)
Therefore it would be great if @mont29 could take a look at our production repository for Sprite Fright, where the error occurred.

The file structure:
Character file containing the character collection
Animation file containing the character animation on an overridden link of the character from the character file
Lighting file containing a link of a mother collection of the overridden character from the animation file

Paths in the Sprites SVN:
Character File: /pro/lib/char/rex/rex.blend
Animation File: /pro/animation_test/rex/performance/rex_dialogue_fortune/rex_dialogue_fortune.anim.blend
Lighting File: /pro/animation_test/rex/performance/rex_dialogue_fortune/rex_dialogue_fortune.lighting.blend

**System Information** Operating system: Linux-5.4.0-7642-generic-x86_64-with-debian-bullseye-sid 64 Bits Graphics card: Quadro RTX 6000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 455.28 **Blender Version** Broken: version: 2.92.0 Alpha, branch: master, commit date: 2020-11-26 10:08, hash: `8a2270efc5` Worked: unknown **Short description of error** The material change of a linked in, overridden character is not updated as expected. Screenshot animation file (character linked and overridden from character file): ![image.png](https://archive.blender.org/developer/F9379834/image.png) Screenshot lighting file (linked from animation file): ![image.png](https://archive.blender.org/developer/F9379841/image.png) I am not sure this is an actual bug, just a niche case that is not covered yet or even expected behaviour. However, I was not able to reproduce this error with a simple test case. Rebuilding the file structure with a simple cube character showed no issue propagating material changes. (For the sake of completeness, here the test case **without** the error: [linked_overrides_material_propagation.zip](https://archive.blender.org/developer/F9379928/linked_overrides_material_propagation.zip)) Therefore it would be great if @mont29 could take a look at our production repository for Sprite Fright, where the error occurred. **The file structure:** Character file containing the character collection Animation file containing the character animation on an overridden link of the character from the character file Lighting file containing a link of a mother collection of the overridden character from the animation file **Paths in the Sprites SVN:** Character File: /pro/lib/char/rex/rex.blend Animation File: /pro/animation_test/rex/performance/rex_dialogue_fortune/rex_dialogue_fortune.anim.blend Lighting File: /pro/animation_test/rex/performance/rex_dialogue_fortune/rex_dialogue_fortune.lighting.blend

Simon Thommes commented

2020-11-26 11:46:03 +01:00

Added subscribers: @mont29, @SimonThommes

Bastien Montagne was assigned by Simon Thommes

2020-11-26 11:46:27 +01:00

Bastien Montagne commented

2020-11-26 15:18:55 +01:00

Am not exactly sure what is expected to happen here tbh...

Opening .anim.blend it complains that a lot of materials are missing from rex.blend
- But it has its 'own' materials suffixed with .rig.rig???
Opening .lighting.blend those .rig.rig materials have disappeared, and instead you get the broken links to missing materials from rex.blend

Further more, those new materials in rex.blend (the .rig.rig ones) are linked to the object, not the object data, so they are affected by overrides - and overrides of materials is... flacky at best currently.

if you re-assign the materials to geometry in rex.blend, then load anim.blend and save it (not even needed to resync the overrides), then open lighting.blend everything is 'fixed'

Am not exactly sure what is expected to happen here tbh... - Opening `.anim.blend` it complains that a lot of materials are missing from `rex.blend` - But it has its 'own' materials suffixed with `.rig.rig`??? - Opening `.lighting.blend` those `.rig.rig` materials have disappeared, and instead you get the broken links to missing materials from `rex.blend` Further more, those new materials in `rex.blend` (the `.rig.rig` ones) are linked to the object, not the object data, so they are affected by overrides - and overrides of materials is... flacky at best currently. if you re-assign the materials to geometry in `rex.blend`, then load `anim.blend` and save it (not even needed to resync the overrides), then open `lighting.blend` everything is 'fixed'

Bastien Montagne commented

2020-11-26 15:25:48 +01:00

Note that resyncing in anim.blend and then reloading lighting.blend also fixes the issue for me (without touching to rex,blend at all this time).

Note that resyncing in `anim.blend` and then reloading `lighting.blend` also fixes the issue for me (without touching to `rex,blend` at all this time).

Bastien Montagne commented

2020-11-26 16:06:52 +01:00

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

Bastien Montagne commented

2020-11-26 16:15:08 +01:00

There is still something wrong here, since anim.blend does not overrides those materials at all, it should still be propagated to lighting.blend... still investigating

There is still something wrong here, since `anim.blend` does not overrides those materials at all, it should still be propagated to `lighting.blend`... still investigating

blender-admin commented

2020-11-26 16:40:42 +01:00

This issue was referenced by 87030d8be5

This issue was referenced by 87030d8be5e9dd6a9c6d95882949d1a18575b90c

Bastien Montagne commented

2020-11-26 16:43:38 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Bastien Montagne closed this issue

2020-11-26 16:43:38 +01:00

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Material change not updating in the link of an override #83046