I have been away from Zbrush for a spell, sorry to have to ask this. I have a model and would like to cut a the feet to be flat and not round. I used to use a mask that would allow me to do this, I would mask the whole body except the bottom part of the feet to make them flat, what is that brush that can do that?
Mask, split masked, select area to remove, select delete.
How do you split mask?
If want flat results i would suggest the clip curves or the trim Curves. You can find them in the selection tools while Cntrl+Shift on the brush icon