material.cpp file

Material and fresnel utility functions.

Functions

auto fresnel_dielectric(float cos_theta_i, float ext_ior, float int_ior) -> float: Calculates the unpolarized fresnel reflection coefficient for a dielectric material.
auto refract(const Vec3f& v, const Vec3f& n, float eta, Vec3f& refracted) -> bool: Generates a refracted direction, assuming refraction is possible based on the incident direction and refractive indices.

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