Read the paper on the project page: http://www.mpi-inf.mpg.de/resources/brdfDisplay
In our Eurographics 2011 paper, we deal with the challenge of physically displaying reflectance, i.e., the appearance of a surface and its variation with the observer position and the illuminating environment. This is commonly described by the bidirectional reflectance distribution function (BRDF). We provide a catalogue of criteria for the display of BRDFs, and sketch a few orthogonal approaches to solving the problem in an optically passive way. Our specific implementation is based on a liquid surface, on which we excite waves in order to achieve a varying degree of anisotropic roughness. The resulting highlights are shown to follow Gaussian distributions similar to Ward's BRDF model.
This video is distributed under a Creative Commons license, http://creativecommons.org/licenses/by/3.0/
Please attribute the work by citing our article:
Matthias B. Hullin, Hendrik P. A. Lensch, Ramesh Raskar, Hans-Peter Seidel, Ivo Ihrke. Dynamic Display of BRDFs. In: Proceedings of Eurographics, April 2011, Llandudno, Wales, UK. (For BibTeX citation, see the project homepage, http://www.mpi-inf.mpg.de/resources/brdfDisplay.)