I’ve been trying to weight paint the jaw area of this character. The paint is getting into some weird internal areas of the nose and surroundings although I can’t see those areas painted in weight paint mode. I also feel like the brush is not very accurate when I have to paint areas I need a huge zoom-in (eg.:inside mouth and tongue)… no idea how to deal with that. I’ve been trying to mess with 2D fallof and autonormalize, aswell as weight, strength and radius to no avail.
Ps.: the forum does not allow me to upload my blend file yet.
If you have any modifiers active, especially a mirror modifier, disable it for the weight painting.
I generally do my weight painting in vertex mode (‘v’ in weight paint mode for me) which lets me select specific verts to limit the extent of painting. Sometimes I tab to edit, which has easier selection tools (not really sure why they’re not fully echoed into weight paint mode), and sometimes in edit mode I hide verts, which then won’t get painted in weight paint.
I would recommend painting inside mouth/tongue as a separate object. You can always join later. Actually, I find the easiest way to handle a mouth-inside is a surface deform from the face (details for it rarely matter, and clipping is a pain to manage using weights), and a tongue usually gets pretty decent autoweights if you give it an appropriately limited armature, just the tongue bones-- as with the meshes, you can always merge armatures together after autoweights.
I did have modifiers active and completely forgot about it. The object did not have a mirror modifier but it had subdivision surface on. Pretty sure this had some issue.
I realized, just before I saw your answer, it’s possible to hide part of the mesh to paint only the area I’m currently interested. The vertex selection and plane masks seem very nice but I can’t figure out how to make de painting affect only the selection.
Also, separating the tongue in a different object and join later is a very interesting solution. How do I do that? Should I create another armature just for the tongue and them join it with the body armature (along with the mesh) or can I rig 2 objects with a single armature before joining them?
