Why when I am using height blend + paintable mask in Sampler I get this sudden height cliff ? .
My guess the paintable part of a mask should multiply or add on one of two layers height . When I do same kind of depth blend in Affinity photo or even Photoshop there are never such artifacts.
I tried smooth and blur slider but they help with nothing. The only thing that smooth that sudden cliffs is lesser mask contrast but it makes it look like just usual feather unrelated to actual height.