Separable Approximation of Ambient Occlusion
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Date
2011
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Ambient occlusion (AO) provides an effective approximation to global illumination that enjoys widespread use amongst practitioners. In this paper, we present a fast easy-to-implement separable approximation to screen space ambient occlusion. Computing occlusion first along a single direction and then transporting this occlusion into a second pass that is stochastically evaluating the final shading based on the AO estimates proves extremely efficient. Combined with interleaved sampling and geometry-aware blur, visually convincing results close to a non-separable occlusion can be obtained at much higher performance.
Description
@inproceedings{:10.2312/EG2011/short/029-032,
booktitle = {Eurographics 2011 - Short Papers},
editor = {N. Avis and S. Lefebvre},
title = {{Separable Approximation of Ambient Occlusion}},
author = {Huang, Jing and Boubekeur, Tamy and Ritschel, Tobias and Holländer, Matthias and Eisemann, Elmar},
year = {2011},
publisher = {The Eurographics Association},
ISSN = {1017-4656},
ISBN = {},
DOI = {/10.2312/EG2011/short/029-032}
}