The Layer Laboratory: A Calculus for Additive and Subtractive Composition of Anisotropic Surface Reflectance

摘要

We present a versatile computational framework for modeling the reflective and transmissive properties of arbitrarily layered anisotropic material structures. Given a set of input layers, our model synthesizes an effective BSDF of the entire structure, which accounts for all orders of internal scattering and is efficient to sample and evaluate in modern rendering systems.