Rain Glass Shader

This shader allowed the illusion of heavy rain hitting the glass windows of a building, having raindrops that would appear and fade, and drips that would lerp down and across different preset normal streaks. The drops were made with some variance, but mostly even to allow tiling, and timing options werebaked into the shader to dial in the look for the designers. This was built on an existing glass shader that added smudges in a fresnel to create realistic glass in a style that fit within the game's style. This was also made to be optimized for standalone VR.