Edited Hair messed up on opening old scene #44906

New Issue

Paolo Sourvinos · 2015-05-31T20:47:32+02:00

Paolo Sourvinos commented

2015-05-31 20:47:32 +02:00

System Information
Mac OS X 10.9.5, ATI HD 4850

Blender Version
Broken: 2.74.5, 5e66827
Worked: 2.74.5, f097453

If either I open the attached scene (that was made in a previous 2.74.5), or append/paste the object, I get hair all messed up, parent strands not following the assigned vertex group, and totally ruffled.
Opening the file or appending with previous versions all goes fine.

image of Correct: http://blenderartists.org/forum/attachment.php?attachmentid=380443&d=1432577225
image of Defective: http://blenderartists.org/forum/attachment.php?attachmentid=380444&d=1432577271

hairissue.blend

Thank you

**System Information** Mac OS X 10.9.5, ATI HD 4850 **Blender Version** Broken: 2.74.5, 5e66827 Worked: 2.74.5, f097453 If either I open the attached scene (that was made in a previous 2.74.5), or append/paste the object, I get hair all messed up, parent strands not following the assigned vertex group, and totally ruffled. Opening the file or appending with previous versions all goes fine. image of Correct: http://blenderartists.org/forum/attachment.php?attachmentid=380443&d=1432577225 image of Defective: http://blenderartists.org/forum/attachment.php?attachmentid=380444&d=1432577271 [hairissue.blend](https://archive.blender.org/developer/F182479/hairissue.blend) Thank you

Paolo Sourvinos commented

2015-05-31 20:47:32 +02:00

Changed status to: 'Open'

Paolo Sourvinos commented

2015-05-31 20:47:32 +02:00

Added subscriber: @sourvinos

Aaron Carlisle commented

2015-06-01 03:11:02 +02:00

Added subscriber: @Blendify

Sergey Sharybin commented

2015-06-02 08:58:30 +02:00

Added subscribers: @LukasTonne, @Sergey

Lukas Tönne was assigned by Sergey Sharybin

2015-06-02 08:58:30 +02:00

Sergey Sharybin commented

2015-06-02 08:58:30 +02:00

@LukasTonne, do you have any inputs here?

P.S. I'm not sure it's technically a regression, the file does not seem to work correct in 2.74 release, so maybe it relied on some intermediate buggy code or so.

@LukasTonne, do you have any inputs here? P.S. I'm not sure it's technically a regression, the file does not seem to work correct in 2.74 release, so maybe it relied on some intermediate buggy code or so.

Paolo Sourvinos commented

2015-06-07 20:54:18 +02:00

Here is another file showing the same issue: 34775.blend
what's important is that it was created with a version prior to 5e66827, then, although looking ruffled, it was resaved in 5e66827 and reopened in f097453 where it looks correct again.
This demonstrates to me that there are no errors in the files, but something has changed between f097453 and 5e66827 (perhaps on "Use Modifier Stack"?), and I think it should be addressed before release.

Thank you

Here is another file showing the same issue: [34775.blend](https://archive.blender.org/developer/F187076/34775.blend) what's important is that it was created with a version prior to 5e66827, then, although looking ruffled, it was resaved in 5e66827 and reopened in f097453 where it looks correct again. This demonstrates to me that there are no errors in the files, but something has changed between f097453 and 5e66827 (perhaps on "Use Modifier Stack"?), and I think it should be addressed before release. Thank you

Lukas Tönne commented

2015-06-22 11:30:09 +02:00

Changed status from 'Open' to: 'Archived'

Lukas Tönne closed this issue

2015-06-22 11:30:09 +02:00

Lukas Tönne commented

2015-06-22 11:30:09 +02:00

Particles are broken, needs rewrite.

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Edited Hair messed up on opening old scene #44906