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Learning to Importance Sample in Primary Sample Space
March 25, 2024, 4:42 a.m. | Quan Zheng, Matthias Zwicker
cs.LG updates on arXiv.org arxiv.org
Abstract: Importance sampling is one of the most widely used variance reduction strategies in Monte Carlo rendering. In this paper, we propose a novel importance sampling technique that uses a neural network to learn how to sample from a desired density represented by a set of samples. Our approach considers an existing Monte Carlo rendering algorithm as a black box. During a scene-dependent training phase, we learn to generate samples with a desired density in the …
abstract arxiv cs.gr cs.lg importance learn network neural network novel paper rendering sample samples sampling set space stat.ml strategies type variance
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