A procedural model of reflection from random rough surfaces

Leonard M. Hanssen; Alexander V. Prokhorov

doi:10.1117/12.796142

29 August 2008 A procedural model of reflection from random rough surfaces

Leonard M. Hanssen, Alexander V. Prokhorov

Proceedings Volume 7065, Reflection, Scattering, and Diffraction from Surfaces; 70650W (2008) https://doi.org/10.1117/12.796142
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

The TETRA bi-directional reflectance distribution function (BRDF) model was developed to simulate the reflection from random rough surfaces in optical radiation transfer modeling by the Monte Carlo method (MCM). This procedural model is based on geometrical optics, has as a prototype the two-dimensional model proposed by Torrance and Sparrow, and allows generating, for each ray, a random tetrahedral pit with walls that reflect according to Fresnel's law. An incident ray undergoes one or several reflections from the tetrahedron's walls, and then continues to participate in the radiation transfer on the macro-level. The properties of the TETRA BRDF are studied using numerical experiments.

Citation Download Citation

Leonard M. Hanssen and Alexander V. Prokhorov "A procedural model of reflection from random rough surfaces", Proc. SPIE 7065, Reflection, Scattering, and Diffraction from Surfaces, 70650W (29 August 2008); https://doi.org/10.1117/12.796142

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