An analytic BRDF for materials with spherical Lambertian scatterers
Eugene d’Eon · Computer Graphics Forum · 2021
Abstract We present a new analytic BRDF for porous materials comprised of spherical Lambertian scatterers. The BRDF has a single parameter: the albedo of the Lambertian particles. The resulting appearance exhibits strong back scattering and saturation effects that height‐field‐based models such as Oren‐Nayar cannot reproduce.