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Identifying Diffraction Effects in Measured Reflectances
(The Eurographics Association, 2015)
There are two different physical models connecting the micro-geometry of a surface and its physical reflectance properties (BRDF). The first, Cook-Torrance, assumes geometrical optics: light is reflected and masked by the ...
In Praise of an Alternative BRDF Parametrization
(The Eurographics Association, 2015)
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 ...
Isotropic BRDF Measurements with Quantified Uncertainties
(The Eurographics Association, 2016)
Image-based BRDF measurements on spherical material samples present a great opportunity to shorten significantly the acquisition time with respect to more traditional, non-multiplexed measurement methods for isotropic ...