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Thin Film reproduces the effect of thin film interference on a surface. It can be used for materials, such as multitone car paint, burnt chrome or the reflective coating on a beetle (Thickness: 400, IOR: 1.43).

 


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Rollover images to view without Thin Film

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Thickness

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Tip

Soap Bubble

The following Standard Surface shader settings were used to create a soap bubble.
Base: 0
Specular: 1
Specular Color: 1 1 1
Specular Roughness: 0
Specular IOR: 1.0
Transmission: 1
Transmission Color: 1 1 1
Coat: 1
Coat IOR: 1.5
Thin Film: IOR 1.4
Thin Film Thickness: 500 [nm]

 



A grayscale map should be connected (through a Range shader) to Thin Film Thickness if variation in the Thin Film is required.

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Info

More Information about soap bubble color and film thickness can be found here.

Info

How Thin Film is Modeled

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How to Map IOR values from Thin Film to Standard Surface

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