Combining global and local virtual lights for detailed glossy illumination
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10057072" target="_blank" >RIV/00216208:11320/10:10057072 - isvavai.cz</a>
Result on the web
<a href="http://dl.acm.org/citation.cfm?doid=1882262.1866169" target="_blank" >http://dl.acm.org/citation.cfm?doid=1882262.1866169</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1145/1882262.1866169" target="_blank" >10.1145/1882262.1866169</a>
Alternative languages
Result language
angličtina
Original language name
Combining global and local virtual lights for detailed glossy illumination
Original language description
While many fast global illumination solutions have been proposed, all of them work under limiting assumptions on the materials and lighting in the scene. In the presence of many glossy (directionally scattering) materials, fast solutions either fail or degenerate to inefficient, brute-force simulations of the underlying light transport. In particular, many-light algorithms are able to provide fast approximations by clamping elements of the light transport matrix, but they eliminate the part of the transport that contributes to accurate glossy appearance. In this paper we introduce a solution that separately solves for the global (low-rank, dense) and local (highrank, sparse) illumination components. For the low-rank component we introduce visibility clustering and approximation, while for the high-rank component we introduce a local light technique to correct for the missing illumination.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JD - Use of computers, robotics and its application
OECD FORD branch
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Result continuities
Project
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Continuities
R - Projekt Ramcoveho programu EK
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACM Transactions on Graphics
ISSN
0730-0301
e-ISSN
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Volume of the periodical
29
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
1-10
UT code for WoS article
000284943000007
EID of the result in the Scopus database
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