A microfacet-based BRDF generator

A method is presented that takes as an input a 2D microfacet orientation distribution and produces a 4D bidirectional reflectance distribution function (BRDF). This method differs from previous microfacet-based BRDF models in that it uses a simple shadowing term which allows it to handle very general microfacet distributions while maintaining reciprocity and energy conservation. The generator is shown on a variety of material types. CR Categories: I.3.7 [Computing Methodologies ]: Computer Graphics—3D Graphics

• Type: Conference
• Year: 2000
• Where: SIGGRAPH
• Authors: Michael Ashikhmin, Simon Premoze, Peter Shirley
• Keywords: 4D Bidirectional Reflectance, Computer Graphics, Microfacet Orientation Distribution, SIGGRAPH 2000, Simple Shadowing Term