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Precomputed local radiance transfer for real-time lighting design

Kristensen, AW; Akenine-Möller, Tomas LU and Jensen, HW (2005) In ACM Transactions on Graphics 24(3). p.1208-1215
Abstract
This paper introduces a new method for real-time relighting of scenes illuminated by local light sources. We extend previous work on precomputed radiance transfer for distant lighting to local lighting by introducing the concept of unstructured light clouds. The unstructured light cloud enables a compact representation of local lights in the model and real-time rendering of complex models with full global illumination due to local light sources. We use simplification of lights, and clustered PCA to obtain a compressed representation. When storing only the indirect component of the illumination, we are able to get high quality with only 8-16 lighting coefficients per vertex. Our results demonstrate real-time rendering of scenes with moving... (More)
This paper introduces a new method for real-time relighting of scenes illuminated by local light sources. We extend previous work on precomputed radiance transfer for distant lighting to local lighting by introducing the concept of unstructured light clouds. The unstructured light cloud enables a compact representation of local lights in the model and real-time rendering of complex models with full global illumination due to local light sources. We use simplification of lights, and clustered PCA to obtain a compressed representation. When storing only the indirect component of the illumination, we are able to get high quality with only 8-16 lighting coefficients per vertex. Our results demonstrate real-time rendering of scenes with moving lights, dynamic cameras, glossy materials and global illumination. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
lighting design, real-time rendering, precomputed radiance transfer, global illumination
in
ACM Transactions on Graphics
volume
24
issue
3
pages
1208 - 1215
publisher
ACM
external identifiers
  • wos:000231223700106
  • scopus:33646039522
ISSN
0730-0301
DOI
10.1145/1073204.1073334
language
English
LU publication?
yes
id
31a89f9e-78b7-475b-86d7-9be72e5b349b (old id 229458)
date added to LUP
2007-08-22 11:14:02
date last changed
2017-08-06 04:36:24
@article{31a89f9e-78b7-475b-86d7-9be72e5b349b,
  abstract     = {This paper introduces a new method for real-time relighting of scenes illuminated by local light sources. We extend previous work on precomputed radiance transfer for distant lighting to local lighting by introducing the concept of unstructured light clouds. The unstructured light cloud enables a compact representation of local lights in the model and real-time rendering of complex models with full global illumination due to local light sources. We use simplification of lights, and clustered PCA to obtain a compressed representation. When storing only the indirect component of the illumination, we are able to get high quality with only 8-16 lighting coefficients per vertex. Our results demonstrate real-time rendering of scenes with moving lights, dynamic cameras, glossy materials and global illumination.},
  author       = {Kristensen, AW and Akenine-Möller, Tomas and Jensen, HW},
  issn         = {0730-0301},
  keyword      = {lighting design,real-time rendering,precomputed radiance transfer,global illumination},
  language     = {eng},
  number       = {3},
  pages        = {1208--1215},
  publisher    = {ACM},
  series       = {ACM Transactions on Graphics},
  title        = {Precomputed local radiance transfer for real-time lighting design},
  url          = {http://dx.doi.org/10.1145/1073204.1073334},
  volume       = {24},
  year         = {2005},
}