An analytic BRDF for materials with spherical Lambertian scatterers
Eugene d'Eon
TL;DR
This paper introduces an analytic bidirectional reflectance distribution function (BRDF) for porous materials with spherical Lambertian scatterers, capturing effects like strong back scattering and saturation not modeled by previous methods.
Contribution
The paper presents a novel analytic BRDF model specifically designed for porous materials with spherical Lambertian scatterers, incorporating a single parameter for simplicity and effectiveness.
Findings
Captures strong back scattering effects
Models saturation effects in porous materials
Simplifies parameters to a single albedo value
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.
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