Setting bpy.types.Constraint.mute from script does not correctly update pose #62770
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Reference: blender/blender#62770
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System Information
Operating system: macOS 10.14.3
Graphics card: Intel Iris Graphics 6100 1536 MB
Blender Version
Broken: 2.80 Beta,
35b78d9807
, blender2.7, 2019-03-14 22:54Short description of error
Setting the 'mute' property of a constraint from script does not correctly update the pose or the UI.
Exact steps for others to reproduce the error
In an add-on script, with an IK constraint, if you do:
Then the pose does not update properly and the UI does not reflect the muting of the constraint.
If you do:
Then things do update correctly, even though the second line has no effect other than to do update side-effects.
Looking at rna_constraint.c, it looks like the block that defines the 'mute' property needs a property update handler installed, like almost all the other properties of the Constraint class. Maybe something like:
Or maybe "rna_Constraint_influence_update". I haven't tried this patch myself.
Added subscriber: @EdmundKapusniak
This issue was referenced by
52e344a770
Added subscriber: @JacquesLucke
The fix you provided makes sense. I think you can turn this into a patch and submit it for review (making it easier for everyone).
Also it would be nice if you could provide a simple .blend file that allows me to reproduce the issue more easily.
Changed status from 'Open' to: 'Resolved'