Make Single User operation ignores linked data-blocks. #91410

New Issue

Bastien Montagne · 2021-09-14T16:56:09+02:00

Bastien Montagne commented

2021-09-14 16:56:09 +02:00

Currently Make Single User operation (from the Object -> Relations 3DView menu e.g.) explicitly ignore any linked ID.

From code history this seems to have been the behavior since a very long time (earliest commit I could find is from 2012 by @ideasman42 , but it's only a cleanup one...). @brecht, @ideasman42, do you guys know why this is the current behavior?

This was reported as an issue by @JulienKaspar in this usecase:

Having several local objects using a same linked obdata.
If you want to get local single users duplicates of those obdata for some of those objects, you currently have to manually click on the 'user number' button in object data properties ID template for each of the objects.
Ideally you should be able to select desired objects in the 3DView, and just run 'Make Single User' for them and their obdata.

See e.g. file below: make_single_user_for_linked_id.blend

Currently `Make Single User` operation (from the `Object -> Relations` 3DView menu e.g.) explicitly ignore any linked ID. From code history this seems to have been the behavior since a very long time (earliest commit I could find is from 2012 by @ideasman42 , but it's only a cleanup one...). @brecht, @ideasman42, do you guys know why this is the current behavior? ----------- This was reported as an issue by @JulienKaspar in this usecase: * Having several local objects using a same linked obdata. * If you want to get local single users duplicates of those obdata for some of those objects, you currently have to manually click on the 'user number' button in object data properties ID template for each of the objects. * Ideally you should be able to select desired objects in the 3DView, and just run 'Make Single User' for them and their obdata. See e.g. file below: [make_single_user_for_linked_id.blend](https://archive.blender.org/developer/F10413329/make_single_user_for_linked_id.blend)

Bastien Montagne commented

2021-09-14 16:56:09 +02:00

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

Bastien Montagne commented

2021-09-14 16:56:09 +02:00

Added subscribers: @JulienKaspar, @ideasman42, @brecht, @mont29

Campbell Barton commented

2021-10-21 12:21:11 +02:00

Not sure if I understand this correctly (is a linked-ID library-linked or a linked-duplicate ?), from checking behavior I think this is working properly/as-intended.

Making library-data local just means the library-data is stored locally in the file (which may still be shared between many objects).

Making single user shouldn't need to be done individually using the "single user" button as there is a menu for this "Object -> Relations -> Make Singe User".

Not sure if I understand this correctly (is a linked-ID `library-linked` or a `linked-duplicate` ?), from checking behavior I think this is working properly/as-intended. Making library-data local just means the library-data is stored locally in the file (which may still be shared between many objects). Making single user shouldn't need to be done individually using the "single user" button as there is a menu for this "Object -> Relations -> Make Singe User".

Bastien Montagne commented

2021-10-21 12:31:14 +02:00

Eeeeeh, must have been very tired or confused when I wrote that task... I meant 'Make Single User ignore linked IDs'! Will update task description.

Bastien Montagne changed title from ~~Make Local operation ignores linked data-blocks.~~ to Make Single User operation ignores linked data-blocks.

2021-10-21 12:31:36 +02:00

Campbell Barton commented

2021-10-21 12:36:44 +02:00

Ah, in that case I don't think there is a good reason for the current behavior, making single user can also make local.

Although exact behavior needs some thought.

For example, if two objects share a linked mesh - is it reasonable that one of the objects meshes remains linked and the other becomes local (because it's duplicated). While "correct" this could be confusing behavior.

Suggest that data which is made single user is also made local.

If there happens to be a use-case for skipping linked data entirely - that could be added as an option (although I doubt it's needed).

Ah, in that case I don't think there is a good reason for the current behavior, making single user can also make local. Although exact behavior needs some thought. For example, if two objects share a linked mesh - is it reasonable that one of the objects meshes remains linked and the other becomes local (because it's duplicated). While "correct" this could be confusing behavior. Suggest that data which is made single user is also made local. ---- If there happens to be a use-case for skipping linked data entirely - that could be added as an option (although I doubt it's needed).

Brecht Van Lommel commented

2021-10-21 12:38:17 +02:00

In #91410#1239101, @ideasman42 wrote:
Ah, in that case I don't think there is a good reason for the current behavior, making single user can also make local.

Agreed.

> In #91410#1239101, @ideasman42 wrote: > Ah, in that case I don't think there is a good reason for the current behavior, making single user can also make local. Agreed.

blender-admin commented

2021-10-21 17:34:05 +02:00

This issue was referenced by c37121f16c

This issue was referenced by c37121f16c14519a9056217a2f02fc9078b6e05e

Bastien Montagne commented

2021-10-22 10:27:00 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Bastien Montagne closed this issue

2021-10-22 10:27:00 +02:00

Bastien Montagne self-assigned this 2021-10-22 10:27:00 +02:00

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Make Single User operation ignores linked data-blocks. #91410