Shoulder topology/weight painting to avoid twists

[Eugenez584]

Hi everyone! I have an important question today. What could be the right way to avoid these twists and turns in shoulder?

Thank you in advance)

[Okidoki]

Better/more geometry (better show with wireframe so someone can decide) with weight painting and/or even subdivided bones…

[Eugenez584]

[Okidoki]

A little bit older… but to show the direction:

Weight painting shoulder and upper arm

Hi all, about to lose my mind over here. I am working on a character and have been trying to get the shoulder and upper arm to work correctly. I got the shoulder to rotate up correctly finally so that is not an issue. The problem I am having now is making the arm go down. I put it down and the mesh goes into the body, is there an easy fix to this? I can’t seem to make it work no matter what I try. My file wont update, so let me try and explain this the best I can. When I rotate the mesh for t…

[joseph]

This is not correct shoulder topology. Watch some of Dikko’s “modeling for animation” tutorials on YouTube and then retopologize

[skuax]

you can use an extra bone parented to the arm bone (roll bone), put a constraint on this extra bone, to make the opposite rotation (copy rotation with negative Y) on Y, guided by the arm Y rotation. Play with the constraint influence slider to limit the effect if needed.
U ll have to share your weight groups from the both bones in an elegant gradient…