Alexander Gavrilov
58dae919e5
When painting using Auto-Normalize or Lock Relative with some groups locked, the locked weights may not add up precisely to 1 because of precision limitations, which results in creating nonzero weights close to FLT_EPSILON. With Lock Relative display mode this is very obvious and annoying (random red points amid black or blue), so add an epsilon check to consider less than 1e-6 unlocked weight to be the same as 0. In addition, in cases when no weight can be painted due to locks, don't create vertex group entries at all if they don't exist yet. Also, don't run Auto Normalize when not painting a deform group. Differential Revision: https://developer.blender.org/D10000
Sphinx Warnings
: WARNING: Could not obtain image size. :scale: option is ignored.
Note the preview is not accurate and warnings may not indicate real issues.
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