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Thin Film Interference in Cycles Work In Progress

Thin film interference (a primary factor in iridescence) is a naturally occurring phenomenon in which two out of phase rays of light interfere creating an interesting interference pattern. I've been experimenting with this phenomenon and am currently recreating a physically accurate model of this using Cycles shaders. Examples: Oil on water Heat treated metals Bubbles Read more on thin film interference: https://en.wikipedia.org/wiki/Thin-film_interference
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