When I create an animation, it's always inconvenient to adjust certain vertices so they don't change their location during an animation e.g. if I want to make an animation about a person throwing an axe to a wall (see picture).
Of course, the bones of the upper- and lower-arm change their rotation since the whole body has to be stopped partly by the arm who's holding the axe. But if I change the rotation of one of these two bones the parented axe also changes its place e.g. it goes into the wall which shouldn't happen.
Therefore, I always have to adjust the bones to avoid this problem. And I have to do it for each frame the tip of the axe is on the wall.
Isn't there a solution to lock the vertices of the tip, so the whole axe doesn't go inside the wall (but can rotate around the locked vertices) even when it's parented to the arm which changes its rotation?