Smooth Vertex Weights operator affects ALL objects that are in weight paint mode(even deselected ones) #61360
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Reference: blender/blender#61360
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smooth_vertex_weights_bug.webm
Blender Version
Broken: 2.80,
02581a7ef8
, 2019-02-08Short description of error
If you leave object A in weight paint mode by making object B the active object, then you enter weight paint mode on object B and use Smooth Vertex Groups operator, the operator will also affect object A.
Exact steps for others to reproduce the error
In attached blend:
smooth_vertex_weights_bug.blend
Other weight operators may be affected. I tried the Clean Vertex Groups operator, it didn't seem to be affected.
Added subscriber: @Mets
This issue was referenced by
a8134647c9
Changed status from 'Open' to: 'Resolved'
Added subscriber: @capnm
@ideasman42 afaict
a8134647c9
is unrelated and doesn't fix this issue.Changed status from 'Resolved' to: 'Open'
I agree, I can still reproduce this in today's build.
Added subscriber: @mano-wii
Strange, all meshes are in the weight paint mode, but with the exception of the active object, there is no visual indication of in what mode the other meshes are.
Indicating that other objects are in weight paint can be implemented.
But an easier solution would be to change the operator to run only on the active object in that case:
I think the fact that non-active objects in weight paint mode don't show the weight paint overlay is normal. Remember, the other objects in this scenario are not selected, so I wouldn't expect them to have the weight paint overlay. Even if they were selected, multi-object weight paint mode isn't a thing right now afaik(although it would be a welcome feature!), so I would still only expect the active object to have the weight paint overlay. This aspect is working as intended in my opinion.
I'm glad the easier solution is the one you describe, since that would make sense to me. After all, what other operator works on objects that are not even selected? So I think that's the main problem here, that it looks as though the Smooth Vertex Weights operator just checks the scene for any object that happens to be in weight paint mode, and operates on it, which probably goes against all kinds of Blender design philosophies.
This issue was referenced by
1278853849
Changed status from 'Open' to: 'Resolved'