Hi.i'm trying to paint on certain depth. let's say i have a model, and on top of it i'm having organic surface bumps. now i want to go to paint room, and paint the model in gray, but paint the organic bumps in green. can i tell the brush to use certain depth limit? for example, "paint only 5 millimeters deep" or "paint on this depth, but do not touch mesh that is higher than current depth". photo here shows my intent. i did it by manually aiming brush on the mesh details; but want to achieve depth detection automatically.