Dispersion and Attenuation

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Permalink Reply by Rich Hart on October 3, 2012 at 2:40pm

• Attenuation. This is a measure of the loss of intensity of light as it passes through the material. Sunglasses, for example, have a high attenuation.
• Dispersion. This controls how much light is split into its component wavelengths.
• Saturation. This determines the amount of dispersion.

Dispersion Saturation controls the color saturation of the prism-like effect of light passing through a refractive medium.  Dispersion must be > 0. for this to have effect.  Dispersion is seldom desired for most architectural rendering.  It does work better in conjunction with caustics.

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Permalink Reply by Alain Bonnefoy on October 3, 2012 at 2:55pm

Ok, interesting

Thanks

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