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New drivers don't propagate to library override if object is made local #124531

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opened 2024-07-11 15:57:31 +02:00 by MultLabs · 6 comments
MultLabs commented 2024-07-11 15:57:31 +02:00
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System Information
Operating system: Linux-6.5.0-14-generic-x86_64-with-glibc2.35 64 Bits, X11 UI
Graphics card: NVIDIA GeForce RTX 4080/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 535.146.02

Blender Version
Broken: version: 4.2.0 Beta, branch: blender-v4.2-release, commit date: 2024-07-08 19:36, hash: d527e3a6bd78

Short description of error
I'm not sure if this is a bug, because I don't really understand how you can make local objects inside the override library while keeping all references.
But I've run into the problem that new drivers are not propagating into the override library from an object I made local. (I made it local because without that it is impossible to access the Hide Render property).

Exact steps for others to reproduce the error

Test file:
test file.blend
Library file:
assets.blend

  • Place the files in the same directory, open the test.blend file.
  • Toggle Empty's Hide Render property.
  • Observe that driver in Array modifier is changed, while driver in Bevel is not changed.

Bevel modifier was added after library linking.

Exact steps for others to reproduce the error from scratch

  • Use same files.
  • Open assets.blend
  • Optional: select the Cube object and add a modifier.
  • In outliner: find the Empty object and, selecting the Hide Render toggle switch, choose "Copy as New Driver" from the context menu.
  • Paste the driver into the values of the created modifier or use any other value, such as z-rotation of the cube.
  • Save file and open test file.blend. Observe that the created drivers don't work.

I assume that the problem lies in the Empty localization. But Blender doesn't give any error and shows the driver in the UI if it exists.

Resync Enforce seems to solve the problem, but it changes the name of empty, which causes problems in other areas (from my experience)

**System Information** Operating system: Linux-6.5.0-14-generic-x86_64-with-glibc2.35 64 Bits, X11 UI Graphics card: NVIDIA GeForce RTX 4080/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 535.146.02 **Blender Version** Broken: version: 4.2.0 Beta, branch: blender-v4.2-release, commit date: 2024-07-08 19:36, hash: `d527e3a6bd78` **Short description of error** I'm not sure if this is a bug, because I don't really understand how you can make local objects inside the override library while keeping all references. But I've run into the problem that new drivers are not propagating into the override library from an object I made local. (I made it local because without that it is impossible to access the Hide Render property). **Exact steps for others to reproduce the error** Test file: [test file.blend](/attachments/c5b84a17-a31c-489b-a7e1-50d619c80f3f) Library file: [assets.blend](/attachments/68f5d3f3-df8c-46a2-996b-69dc407dd630) - Place the files in the same directory, open the test.blend file. - Toggle Empty's Hide Render property. - Observe that driver in Array modifier is changed, while driver in Bevel is not changed. Bevel modifier was added after library linking. **Exact steps for others to reproduce the error from scratch** - Use same files. - Open assets.blend - Optional: select the Cube object and add a modifier. - In outliner: find the Empty object and, selecting the Hide Render toggle switch, choose "Copy as New Driver" from the context menu. - Paste the driver into the values of the created modifier or use any other value, such as z-rotation of the cube. - Save file and open test file.blend. Observe that the created drivers don't work. I assume that the problem lies in the Empty localization. But Blender doesn't give any error and shows the driver in the UI if it exists. Resync Enforce seems to solve the problem, but it changes the name of empty, which causes problems in other areas (from my experience)
assets.blend
132 KiB
test file.blend
129 KiB
MultLabs added the
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 labels 2024-07-11 15:57:32 +02:00
MultLabs changed title from New drivers don't propagate to library override if object made local to New drivers don't propagate to library override if object is made local 2024-07-11 16:29:58 +02:00
Iliya Katushenock added the
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 label 2024-07-11 19:47:38 +02:00
Bart van der Braak added
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Philipp Oeser commented 2024-08-16 18:00:40 +02:00
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Observe that driver in Array modifier is changed, while driver in Bevel is not changed.

Can confirm that behavior in provided file.

made it local because without that it is impossible to access the Hide Render property

What works for me (in a simple test) though is:

  • link the collection from a lib .blend file (still only the driver on the array modifier)
  • make a library override on the collection
  • also make an override on the Empty !
  • so you dont have to make the Empty local
  • (now you can access the Hide Render property and override it)
  • save the main file
  • back in the lib file, update the lib file to have an additional modifier plus the driver and save
  • now open the main file again
  • observe both drivers are working

Does this work for you?

>Observe that driver in Array modifier is changed, while driver in Bevel is not changed. Can confirm that behavior in provided file. > made it local because without that it is impossible to access the Hide Render property What works for me (in a simple test) though is: - link the collection from a lib .blend file (still only the driver on the array modifier) - make a library override on the collection - also make an override on the Empty ! - so you dont have to make the Empty local - (now you can access the Hide Render property and override it) - save the main file - back in the lib file, update the lib file to have an additional modifier plus the driver and save - now open the main file again - observe both drivers are working Does this work for you?
lib.blend
890 KiB
main.blend
860 KiB
Philipp Oeser added
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 labels 2024-08-16 18:00:49 +02:00
MultLabs commented 2024-08-24 10:25:29 +02:00
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Sure, that works for me. But the report is about localization part of the object. I can expect that localized object may have the behavior, and maybe this can be a known issue or even an expected by design. But I suppose that UI shows wrong information in this case, that should be a bug

Sure, that works for me. But the report is about localization part of the object. I can expect that localized object may have the behavior, and maybe this can be a known issue or even an expected by design. But I suppose that UI shows wrong information in this case, that should be a bug
Philipp Oeser commented 2024-08-26 14:09:51 +02:00
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But the report is about localization part of the object

I made it local because without that it is impossible to access the Hide Render property

This is why I suggested to make an override on the Empty as well ;)

Will check the behavior with making it local

>But the report is about localization part of the object >I made it local because without that it is impossible to access the Hide Render property This is why I suggested to make an override on the Empty as well ;) Will check the behavior with making it local
Philipp Oeser commented 2024-08-26 14:57:12 +02:00
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So I think this is actually intended behavior.

If you change the lib file to have another driver, this driver will remain in a "linked" state.
The fact that you made the driver target local in the main file

  • updates the drivers present at that point in time in the main file (remaps the driver targets to the now local target)
    -- at that state from the main file, there are no linked driver targets actually, the only driver target is local, driver targets from the lib file are not pulled in
  • BUT when the lib file changes and now has driver targets that are not local in the main file, this will now pull that object in as a system override (Empty.001) that you cant change.

Makes sense?

@mont29 please correct me if I am wrong

So I think this is actually intended behavior. If you change the lib file to have another driver, this driver will remain in a "linked" state. The fact that you made the driver target local in the main file - updates the drivers present at that point in time in the main file (remaps the driver targets to the now local target) -- at that state from the main file, there are no linked driver targets actually, the only driver target is local, driver targets from the lib file are not pulled in - BUT when the lib file changes and now has driver targets that are not local in the main file, this will now pull that object in as a system override (Empty.001) that you cant change. Makes sense? @mont29 please correct me if I am wrong
Bastien Montagne commented 2024-08-26 16:00:12 +02:00
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Sounds indeed like expected behavior. Please also check the manual regarding animation data and liboverrides.

Sounds indeed like expected behavior. Please also check [the manual](https://docs.blender.org/manual/en/4.2/files/linked_libraries/library_overrides.html#animation-overrides) regarding animation data and liboverrides.
Philipp Oeser commented 2024-09-02 12:14:11 +02:00
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OK, will close then (of course feel free to comment again if you still think you've found a bug)

OK, will close then (of course feel free to comment again if you still think you've found a bug)
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