For a school project I am making a river in UE4 with help of Houdini. I started out making a flowmap and getting this to work in UE4, and that all went well. Now I was thinking that it would be nice if I could get foam textures around rocks that are sticking out and such (maybe some splashy particles as well).
I thought I could use the intersection analysis and make the vertex color red. Then when it has a value of 1, it will have foam, with a value of 0.5, it will have a little foam, etc. Then I can still use green and blue for something else. Right now I am still waiting for an educational license from school, but I was just curious if someone knows if this will work, or what other approaches you're thinking of with this.
Another idea I had was to make a polywire around the intersection analysis and use this as a spawn actor for particles in Unreal. Any ideas on this?