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In Praise of an Alternative BRDF Parametrization

Pascal Barla 1, 2, 3 Laurent Belcour 4 Romain Pacanowski 1, 2 
1 MANAO - Melting the frontiers between Light, Shape and Matter
LaBRI - Laboratoire Bordelais de Recherche en Informatique, Inria Bordeaux - Sud-Ouest, LP2N - Laboratoire Photonique, Numérique et Nanosciences
Abstract : In this paper, we extend the work of Neumann et al. [NNSK99] and Stark et al. [SAS05] to a pair of 4D BRDF parameterizations with explicit changes of variables. We detail their mathematical properties and relationships to the commonly-used halfway/difference parametrization, and discuss their benefits and drawbacks using a few an- alytical test functions and measured BRDFs. Our preliminary study suggests that the alternative parametrization inspired by Stark et al. [SAS05] is superior, and should thus be considered in future work involving BRDFs.
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Submitted on : Monday, July 6, 2015 - 6:58:52 PM
Last modification on : Tuesday, October 25, 2022 - 4:22:52 PM
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  • HAL Id : hal-01172118, version 1



Pascal Barla, Laurent Belcour, Romain Pacanowski. In Praise of an Alternative BRDF Parametrization. Workshop on Material Appearance Modeling, Jun 2015, Darmstadt, Germany. ⟨hal-01172118⟩



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