Combined Correlated and Importance Sampling in Direct Light Source Computation and Environment Mapping


This paper presents a general variance reduction method that is a quasi-optimal combination of correlated and importance sampling. The weights of the combination are selected automatically in order to keep the merits of both importance and correlated sampling. The proposed sampling method is used for efficient direct light source computation of large area… (More)
DOI: 10.1111/j.1467-8659.2004.00790.x


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