How to symmetrize weight paint?

Question

I need guidance on how to make the weight the same on both sides, two meshes that are symmetrical to each other and an armature.

My formatting is awful but i can try and describe the images. 1-hand i want to copy with a selected finger... 2-hand i want to copy with a bent finger as an example... 3-hand i want to fix/replace with a selected finger... 4- hand i want to fix/replace with a bent finger (it is not the same)... 5- weight paint for the bad hand... 6-weight paint for the good hand... hope this helps — WrathbotJr, Dec 06 '23 at 01:39
you could use geonodes plus this: https://blender.stackexchange.com/questions/274922/assign-vertex-group-in-geometry-nodes-v3-3/275405#275405 — Markus von Broady, Dec 06 '23 at 12:48

score 1 · Answer 1 · answered Dec 06 '23 at 06:39

You could:

Remove the right hand
Mirror the left hand with a Mirror modifier
Make sure that the left hand and right hand bones are correctly name (finger1_L, finger1_R, etc)
Weight paint the left hand
Apply the modifier, it will automatically mirror the weight paint

score 1 · Answer 2 · answered Dec 06 '23 at 07:33

1

There is an option to mirror weights when you're drawing them. "Mirror vertex group" and mirror "X".

Bones need to be named correctly, with "left" and "right" suffixes, as indicated in the documentation.

answered Dec 06 '23 at 07:33

lemon

2 Answers2