I'm trying to simulate sand build up after something dips into it (with dynamic painting). I'm using two parented spheres as brushes (one bigger one smaller). The smaller one is in collection "down" and the bigger in collection "up". I have one plane which is canvas with TWO surfaces. One named "down" that uses the collection down and has displacement factor on 2 And second one named "up" that uses collection "up" with displacement factor -1 so it displaces upwards.
but when i try to bake the frames it only bakes one of the surfaces not both... Something I'm missing or is there better, different way to do this similar effect? Thanks, tedd.