Asset Browser - Material is not applied if it is appended and then linked #95706
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Milestone 1: Basic, Local Asset Browser
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Reference: blender/blender#95706
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System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 497.29
Blender Version
Broken: version: 3.0.1, branch: master, commit date: 2022-01-25 17:19, hash:
dc2d180181Short description of error
If you set the asset browser to "Append (Reuse Data)" and drag a material on to an object and then set the asset browser to "link" and drag it onto the object again the linked material is not used. Instead the appended Material is still used.
Exact steps for others to reproduce the error
Added subscriber: @Lumpengnom-3
Added subscriber: @mano-wii
Changed status from 'Needs Triage' to: 'Confirmed'
I can confirm.
The material is linked, just not applied to the object.
Added subscriber: @lichtwerk
Bug in recent feature --> High prio.
Feel free to lower again if this feels unappropriate...
Added subscriber: @JulianEisel
Not really a UI thing, so removing it from there.
Added subscriber: @mont29
This is a problem in drag'n'drop code, where only the ID name is used as reference (since after append there is a local ID with exact same name, this one is then 'found' first, instead of expected linked data).
Note that this would fail in many other similar cases (IDs from different libraries with exact same name e.g.).
@JulianEisel
view3d_id_drop_copy& co. need to be updated to use 'UUID' of IDs I guess?This issue was referenced by
8f79fa9c67Changed status from 'Confirmed' to: 'Resolved'
Changed status from 'Resolved' to: 'Confirmed'
This is only partially fixed. Reopening.
This issue is quite similar to #97320 and basically the same as what I've noted in my last comment applies here as well.
8f79fa9c67applied the session UUID fix for materials, but it seems this wasn't enough. I can still recreate the issue here. The ID provided for the operation is not linked, so I think just like for #97320,WM_drag_get_local_ID_or_import_from_asset()returns the wrong ID (in #97320 it's the linked instance even though the non-linked one is expected, here it's the non-linked instance even though a linked one is expected).This issue was referenced by
bc3dbf109cChanged status from 'Confirmed' to: 'Resolved'
Note: Appending followed by link is working now, linking followed by append isn't. However that's the same issue as #97320. We basically get the wrong ID from the appending code (the linked one instead of a new, appended instance).
Now with
a4e7a5aa4f, it works properly both ways: Appending followed by linking (material gets replaced by linked instance) and linking followed by append (linked instance gets replaced by a new appended instance).There were quite a few issues to resolve, but should be all good now :)