Practical Product Importance Sampling for Direct Illumination

@article{Clarberg2008PracticalPI,
  title={Practical Product Importance Sampling for Direct Illumination},
  author={Petrik Clarberg and Tomas Akenine-M{\"o}ller},
  journal={Comput. Graph. Forum},
  year={2008},
  volume={27},
  pages={681-690}
}
We present a practical algorithm for sampling the product of environment map lighting and surface reflectance. Our method builds on wavelet-based importance sampling, but has a number of important advantages over previous methods. Most importantly, we avoid using precomputed reflectance functions by sampling the BRDF onthe-fly. Hence, all types of materials can be handled, including anisotropic and spatially varying BRDFs, as well as procedural shaders. This also opens up for using very high… CONTINUE READING
BETA

Citations

Publications citing this paper.
SHOWING 1-10 OF 37 CITATIONS, ESTIMATED 34% COVERAGE

110 Citations

01020'08'11'14'17
Citations per Year
Semantic Scholar estimates that this publication has 110 citations based on the available data.

See our FAQ for additional information.

Similar Papers

Loading similar papers…