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Fresnel
Brickyard : Functions > Lighting > ray tracing
The Fresnel Effect describes objects that are more or less transparent based on the viewing angle. The Fresnel brick uses the Index of Refraction Ratio to calculate this. This procedure also returns the reflection (R) and transmission (T), or refraction, vectors. The refraction vector is computed using Snell's law. See also, Fresnel equations.
Optionally, an incident direction I and the surface normal N may be supplied.
Snapshot
Parameters
Outputs
Inputs
- Index of Refraction Ratio : Float - Description…
Examples
- In this example, the Coefficient of Reflection is used as the Color, and the Coefficient of Refraction is inverted and used as Opacity.
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