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Fix #108495: Pasting a material crashes (back-port from main) #108567

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Campbell Barton wants to merge 1 commits from ideasman42:pr-material-clipboard-paste-backport into blender-v3.6-release
pull from: ideasman42:pr-material-clipboard-paste-backport
merge into: blender:blender-v3.6-release

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Conversation 4 Commits 1 Files Changed 6 +208 -210
Campbell Barton commented 2023-06-03 13:03:45 +02:00
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References to data-blocks in a material were stored in-memory and could
crash if the data-blocks referenced by the material no longer existed
when pasting.

Resolve by using a blend-file for material copy/paste, matching how the
clipboard works in the 3D view-port.

Currently there is no support for including indirectly linked
data-blocks when pasting the material. Instead, data-blocks are restored
by name, by inspecting the current file.

This also fixes a crash where the SpaceNode::nodetree could point to
freed memory when pasting a material.

Ref !108496.

Includes contributions by @mont29.

Fix back-ported to main [0], including fix [1].

[0]: 5177e2f20b37eb5c97f0ed989febd7f783ae4f1f
[1]: 64aa96d421df8857dcf8d54e8613ff3cdb6c8a9b
References to data-blocks in a material were stored in-memory and could crash if the data-blocks referenced by the material no longer existed when pasting. Resolve by using a blend-file for material copy/paste, matching how the clipboard works in the 3D view-port. Currently there is no support for including indirectly linked data-blocks when pasting the material. Instead, data-blocks are restored by name, by inspecting the current file. This also fixes a crash where the `SpaceNode::nodetree` could point to freed memory when pasting a material. Ref !108496. Includes contributions by @mont29. ``` Fix back-ported to main [0], including fix [1]. [0]: 5177e2f20b37eb5c97f0ed989febd7f783ae4f1f [1]: 64aa96d421df8857dcf8d54e8613ff3cdb6c8a9b ```
Campbell Barton requested review from Brecht Van Lommel 2023-06-03 13:04:16 +02:00
Campbell Barton requested review from Bastien Montagne 2023-06-03 13:04:17 +02:00
Campbell Barton force-pushed pr-material-clipboard-paste-backport from a2fcccb6b0 to 098feaf7bf 2023-06-03 13:07:21 +02:00 Compare
Bastien Montagne commented 2023-06-05 17:22:56 +02:00
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Not sure I understand the purpose of this patch... I thought we agreed to remove this feature for 3.6?

Not sure I understand the purpose of this patch... I thought we agreed to remove this feature for 3.6?
Campbell Barton commented 2023-06-06 02:54:23 +02:00
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@mont29 I'm fine to go with the decision of module owners, this touches both ID management & render-shading modules.
Brecht prefers not to remove for 3.6, so would you and Brecht be able to come to an agreement?

@mont29 I'm fine to go with the decision of module owners, this touches both ID management & render-shading modules. Brecht prefers not to remove for 3.6, so would you and Brecht be able to come to an agreement?
Bastien Montagne commented 2023-06-06 16:08:24 +02:00
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OK talked with @brecht, we agreed that we can try to backport it and see how it goes. If it keeps becoming a bigger can of worms, at some point it would probably be better to remove that feature altogether, but for consistency it's better to not remove it from one release and have it fixed in the next one.

OK talked with @brecht, we agreed that we can try to backport it and see how it goes. If it keeps becoming a bigger can of worms, at some point it would probably be better to remove that feature altogether, but for consistency it's better to not remove it from one release and have it fixed in the next one.
Bastien Montagne approved these changes 2023-06-06 16:08:39 +02:00
Brecht Van Lommel approved these changes 2023-06-06 22:06:24 +02:00
Campbell Barton commented 2023-06-07 05:29:27 +02:00
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Committed 64ead920a1, closing.

Committed 64ead920a19201aa6f5cbca1a1a47fdba279cdd7, closing.
Campbell Barton closed this pull request 2023-06-07 05:29:28 +02:00

Pull request closed

This pull request cannot be reopened because the branch was deleted.
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