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Symposium on Rendering
As image-based surface reflectance and illumination gain wider use in physically-based rendering systems, it is becoming more critical to provide representations that allow sampling light paths according to the distribution of energy in these high-dimensional measured functions. In this paper, we apply algorithms traditionally used for curve approximation to reduce the size of a multidimensional tabulated Cumulative Distribution Function (CDF) by one to three orders of magnitude withoutdoi:10.2312/egwr/egsr05/011-020 fatcat:q3ecxpgtzrhmrdt2cw6dwl36fi