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Proceedings Paper

Robust categorization of microfacet BRDF models to enable flexible application-specific BRDF adaptation
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Paper Abstract

Since the development of the Torrance-Sparrow bidirectional re ectance distribution function (BRDF) model in 1967, several BRDF models have been created. Previous attempts to categorize BRDF models have relied upon somewhat vague descriptors, such as empirical, semi-empirical, and experimental. Our approach is to instead categorize BRDF models based on functional form: microfacet normal distribution, geometric attenua- tion, directional-volumetric and Fresnel terms, and cross section conversion factor. Several popular microfacet models are compared to a standardized notation for a microfacet BRDF model. A library of microfacet model components is developed, allowing for creation of unique microfacet models driven by experimentally measured BRDFs.

Paper Details

Date Published: 5 September 2014
PDF: 11 pages
Proc. SPIE 9205, Reflection, Scattering, and Diffraction from Surfaces IV, 920506 (5 September 2014); doi: 10.1117/12.2061134
Show Author Affiliations
Samuel D. Butler, Air Force Institute of Technology (United States)
Michael A. Marciniak, Air Force Institute of Technology (United States)

Published in SPIE Proceedings Vol. 9205:
Reflection, Scattering, and Diffraction from Surfaces IV
Leonard M. Hanssen, Editor(s)

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