I would prefer to render the models for speaker portraits directly. However, it seems like it's not currently possible to clip or render models to offscreen surfaces.
Instead of teleporting from sticking with the left/rightmost vertex to the
want to standing on the lowest one at the same position, the Clonk can now
climb using the lowest vertex alone. That means the teleport only needs to
cover only one pixel each in x and y direction to go from sticking to the
side of the landscape pixel to sticking on top of the same pixel.
Also remove some unnecessary x/ydir resets and make comdir in the direction
of the wall the Clonk is scaling keep the up/down direction instead of only
going up.