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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Communication dans un congrès
Workshop on Material Appearance Modeling, Jun 2015, Darmstadt, Germany. Workshop on Material Appearance Modeling, 2015, Proceedings of the Workshop on Material Appearance Modeling 2015
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Pascal Barla, Laurent Belcour, Romain Pacanowski. In Praise of an Alternative BRDF Parametrization. Workshop on Material Appearance Modeling, Jun 2015, Darmstadt, Germany. Workshop on Material Appearance Modeling, 2015, Proceedings of the Workshop on Material Appearance Modeling 2015. 〈hal-01172118〉

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