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Maniphest T59766

Hair broken when appending a character.
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Description

Hair radius values get reset on a character when trying to append it or link it.
The test character works fine in 2.79 and also in 2.8, but not when being linked or appended into the scene - then hair shape radius and tip/root scaling get ruined/reset to default values.

The file I found this issue on is here on my GDrive:

https://drive.google.com/drive/folders/15mgKS4K3wfnAduRAbh8fmuGmCqZmO6dv?usp=sharing

Let me know if I should create a simpler file when it's needed, but I assume the issue is quite clear.

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Event Timeline

Vilem Duha (pildanovak) created this task.Dec 22 2018, 8:08 PM
Vilem Duha (pildanovak) added a comment.Dec 22 2018, 9:21 PM

Just for fun and to point out seriousnes of this issue, it goes from this :


to this:

Vilem Duha (pildanovak) added a comment.Dec 22 2018, 9:46 PM

and here{F6038276}
is a much smaller file to show the issue.
btw same thing happens when appending object or collection(as in case of the character) also same with linking.

Vilem Duha (pildanovak) added a project: BF Blender: 2.8.Dec 26 2018, 11:48 AM
Vilem Duha (pildanovak) added a project: BF Blender.Jan 6 2019, 9:40 PM
Brecht Van Lommel (brecht) closed this task as a duplicate of T54504: Cycles Displacement node not automatically inserted in older files when linking.Jan 9 2019, 7:24 PM
Brecht Van Lommel (brecht) added a subscriber: Brecht Van Lommel (brecht).

It's an issue with versioning linked Cycles data, same as another bug even though they may appear unrelated.

Brecht Van Lommel (brecht) added a comment.Jan 9 2019, 7:25 PM

Saving the file once in Blender 2.8 works around the issue.

Vilem Duha (pildanovak) added a comment.Jan 9 2019, 10:37 PM

Well, since reporting this one I actually found several weird bugs when linking /appending data, and didn't report those since I thought linking/appending might be unfinished.
So this can't be expected to be fixed, and more reports of this type shouldn't be submitted?

Brecht Van Lommel (brecht) added a comment.Jan 10 2019, 4:06 PM

It's intended to be fixed, just not need to have multiple reports about the same underlying bug.

Brecht Van Lommel (brecht) merged a task: T60399: Hair width is lost and reset when appending from a 2.7 file.Jan 10 2019, 7:10 PM
Brecht Van Lommel (brecht) added a subscriber: Wo!262 (wo262).
Vilem Duha (pildanovak) mentioned this in T54504: Cycles Displacement node not automatically inserted in older files when linking.Apr 20 2019, 9:16 PM