Hello, Someone asked for a thin film shader and I wrote one in OSL based on some code I found here: http://www.gamedev.net/page/resources/\_/technical/graphics-programming-and-theory/thin-film-interference-for-computer-graphics-r2962 Attached is the shader and some sample scene. Best regards, V…

Thanks Vlado! I’m sure this will come in handy someday :slight_smile:

Hehe thank’S Vlado good stuff again :slight_smile:

How would I use it? VRayBlendMtl? Just on top with <100% Opacity? Edit: Nevermind, missed that there is a link with an example scene.

In my example, I just put it as the reflection color in a VRayMtl material with Fresnel off. Using it as blend mask is also possible, though it could get a bit complicated if you want to do bump mapping just for that layer. Best regards, Vlado

Very useful little shader :slight_smile: Thanks Vlado!

Could this be incorporated into the standard VRay Material (maybe under an “advanced” tab)? It’s a superb addition. Also, I assume that to keep realistic you would use realistic wavelengths - 380 to 750 nm?

Thin film OSL shader

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vlado February 5, 2015, 10:54pm 4

I hate to use this as a reference, but here are some examples:
http://blog.maxwellrender.com/tips/pushing-the-limits-of-realism-of-materials/

Best regards,
Vlado

Vray toon

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Thin film OSL shader

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