I’m trying to apply a post process material on the backfaces of elements who are getting cut by a opacity mask, it’s a simulation of a construction where the mask is animated from bottom to top, and the post process material would be a simple color.
Can someone help me in this?
I find this tutorial https://zoltane.com/pages/unreal/cutaway-views/ but cant understand how to make it work
There’s this post who archieve something like I want but he doesn’t answer how Applying material to backfaces - Rendering - Unreal Engine Forums