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Zero-variance Transmittance Estimation
(The Eurographics Association, 2021)
We apply zero-variance theory to the Volterra integral formulation of volumetric transmittance.We solve for the guided sampling decisions in this framework that produce zero-variance ratio tracking and next-flight ratio ...
Importance Sampling of Glittering BSDFs based on Finite Mixture Distributions
(The Eurographics Association, 2021)
We propose an importance sampling scheme for the procedural glittering BSDF of Chermain et al. [CSDD20]. Glittering BSDFs have multi-lobe visible normal distribution functions (VNDFs) which are difficult to sample. They ...