But sometimes it seems to have no effect and it goes back to normal as soon as I get out of the tool. How do I fix that?Originally posted by happymat27
You appear to have sorted it in the time it took me to make the image, I'll post it anyway.
Painting skin weights is how you edit the influence a joint has on the mesh. If you're getting deformation around the head of your model when you move the shoulder, you need to correct it with the Paint Skin Weight tool.
Later,
Mat.