Weight paint with mirror modifier does not accurate represent bone influence #35545

New Issue

Tony Mullen · 2013-05-28T06:07:18+02:00

Tony Mullen commented

2013-05-28 06:07:18 +02:00

%%%--- Operating System, Graphics card ---
Windows 7 (on an iMac), Mac OS X (Macbook Air)

- Blender version with error, and version that worked ---

2.67a with error. Don't remember when this last worked as expected, but I'm sure it did at some point.

- Short description of error ---

When a mirrored mesh is parented to an Armature using automatic bone weights, deform weights are set correctly. However, when viewed in weight paint mode, display shows weight paint values also mirrored, incorrectly representing the bones' actual influence on the mirrored mesh.

- Steps for others to reproduce the error (preferably based on attached .blend file) ---

See attached image. Create mesh, add mirror modifier, add armature, parent mesh to armature with automatic weights.

%%%

%%%--- Operating System, Graphics card --- Windows 7 (on an iMac), Mac OS X (Macbook Air) - Blender version with error, and version that worked --- 2.67a with error. Don't remember when this last worked as expected, but I'm sure it did at some point. - Short description of error --- When a mirrored mesh is parented to an Armature using automatic bone weights, deform weights are set correctly. However, when viewed in weight paint mode, display shows weight paint values also mirrored, incorrectly representing the bones' actual influence on the mirrored mesh. - Steps for others to reproduce the error (preferably based on attached .blend file) --- See attached image. Create mesh, add mirror modifier, add armature, parent mesh to armature with automatic weights. %%%

Tony Mullen commented

2013-05-28 06:07:18 +02:00

Changed status to: 'Open'

Campbell Barton commented

2013-06-03 00:40:56 +02:00

%%%fixed r57206.%%%

Olson Burry commented

2013-06-11 05:27:01 +02:00

%%%After this commit, weights do not show on an object which has a mirror modifier at all, unless there is an armature modifier and armature set in the object field.

I did not know whether to make a separate report or not.

Cheers%%%

%%%After this commit, weights do not show on an object which has a mirror modifier at all, *unless* there is an armature modifier and armature set in the object field. I did not know whether to make a separate report or not. Cheers%%%

Campbell Barton commented

2013-06-12 09:55:17 +02:00

%%%Reopened, will check.%%%