Modeling anisotropic scattering surfaces in illumination software

Eric C. Fest; David G. Jenkins

doi:10.1117/12.401661

26 September 2000 Modeling anisotropic scattering surfaces in illumination software

Eric C. Fest, David G. Jenkins

Proceedings Volume 4100, Scattering and Surface Roughness III; (2000) https://doi.org/10.1117/12.401661
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Many surfaces scatter light in an anisotropic way, that is, for a normally incident beam, the distribution of scattered light varies as a function of the azimuthal angle of the scattered direction. Examples of surfaces with anisotropic scattering characteristics are brushed metal reflectors and certain types of diffusers. A model, based on an anisotropic scatter model proposed by Ward is introduced. The ability to fit this model to various sets of measured BSDF data is investigated. Raytracing simulations are performed using the fitted parameters, and the results are compared with experiments.

Citation Download Citation

Eric C. Fest and David G. Jenkins "Modeling anisotropic scattering surfaces in illumination software", Proc. SPIE 4100, Scattering and Surface Roughness III, (26 September 2000); https://doi.org/10.1117/12.401661

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