What is the Fresnel Effect?

  • Post last modified:13 December 2023

Explanatory video for Fresnel effect and its formula derivation.

Fresnel Effect Formula

Output = pow( 1 – Saturate( Dot( ViewDir, Normal ), Power)

Facts about the Fresnel Effect

The Fresnel effect is a phenomenon in physics and optics that describes how light interacts with surfaces at different angles of incidence. It is named after the French engineer and physicist Augustin-Jean Fresnel, who contributed significantly to the understanding of wave optics in the 19th century.