This is a material study for water foam material in Substance Designer. I was planning to make just a water foam mask for Unreal Engine 4 material, but I decided to go further than an RGB mask image. I will post UE4 water material when it is polished. It was a hard project and took several approaches to make like this. If you have suggestions or methods for water foam, please let me know.
Primary Reference image: https://www.sketchuptextureclub.com/textures/nature-elements/water/sea-water/sea-water-foam-texture-seamless-13271
For Hires image - https://www.artstation.com/artwork/L2q5P5