fR-ThinFilm simulates object surfaces coated with an ultra-thin layer of a different material refracting and reflecting light rays based on the viewing angle and light position.
With fR-ThinFilm applied, light hitting an object is split into a user defined color rainbow. Each color section of the rainbow gradient corresponds to a specific angle of incident.
Animating the camera, light, or object creates a colorful light shimmering effect, as commonly seen with oil on water.
