A custom material I put together in UE4 for our game Life Unfolds. With this I can easily paint textures on to a surface through vertex painting. Each channel, R, G, B, and A, is used to layer on a separate texture. The challenge that we faced was to be able to paint a hard edge texture on to a low poly mesh without a soft gradient blend. With the help of a repeatable cloud texture pattern from Photoshop, I was able to paint on a texture with a ripped paper-like edge to match our papercraft style world.
