Our Iridescence "Thin Film" shader is great for oily surfaces as well as metals! This shader works with RenderMan Reyes, and supports the new Physically Plausible paradigm with ray traced area lights.
The Lollipop Shaders Iridescence Base Kit includes:
All our shaders are multi-platform, they work on PC/Mac OSX/Unix.
There are many things found in nature that exhibit an "iridescent thin-film" visual quality that can be achieved by this shader. Explore these inspirational images (not renders) and find some of your own:
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