Adaptive LightSlice for Virtual Ray Lights
Abstract
We speed up the rendering of participating media with Virtual Ray Lights (VRLs) by clustering them in a preprocessing step. A subset of representative VRLs is then sampled from the clustering, which is used for the final rendering. By performing a full variance analysis, we can explicitly estimate the convergence rate of the rendering process and automatically find the locally ideal number of clusters to maximize efficiency. Overall, we report speed-up factors ranging from 13 to 16 compared to unclustered rendering.
BibTeX
@inproceedings {10.2312:egsh.20151015,
booktitle = {EG 2015 - Short Papers},
editor = {B. Bickel and T. Ritschel},
title = {{Adaptive LightSlice for Virtual Ray Lights}},
author = {Frederickx, Roald and Bartels, Pieterjan and Dutré, Philip},
year = {2015},
publisher = {The Eurographics Association},
DOI = {10.2312/egsh.20151015}
}
booktitle = {EG 2015 - Short Papers},
editor = {B. Bickel and T. Ritschel},
title = {{Adaptive LightSlice for Virtual Ray Lights}},
author = {Frederickx, Roald and Bartels, Pieterjan and Dutré, Philip},
year = {2015},
publisher = {The Eurographics Association},
DOI = {10.2312/egsh.20151015}
}