TY - RPRT T1 - Using Helmholtz reciprocity in variable resolution BSDFs in Radiance Y1 - 2011/11// A1 - David Geisler-Moroder PB - Bartenbach L-chtLabor ER - TY - RPRT T1 - Validation of variable resolution BSDFs in Radiance Y1 - 2011/11// A1 - David Geisler-Moroder AB - In this document results of the validation of the "Variable Resolution BSDF" approach as presented at the 10th International Radiance Workshop (G.Ward, A.McNeil, "A Variable-resolution BSDF Implementation") are presented.Variable-resolution BSDFs are generated with genBSDF for the RADIANCE native materials plastic, trans, and glass (isotropic) and plastic2 and trans2 (anisotropic). Both, the maximum resolution (1024 x 1024 patches or 4096 x 4096 patches) as well as the number of specular samples (16 or 64) are varied.The resulting data is reduced with rttree_reduce at various degrees (0%, i.e. no reduction, 95%, i.e. reduction by approximately 95%, and 99%, i.e. only about 1% of data left). PB - Bartenbach L-chtLabor ER -