Joint Importance Sampling of Low-Order Volumetric Scattering
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10191409" target="_blank" >RIV/00216208:11320/13:10191409 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1145/2508363.2508411" target="_blank" >http://dx.doi.org/10.1145/2508363.2508411</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1145/2508363.2508411" target="_blank" >10.1145/2508363.2508411</a>
Alternative languages
Result language
angličtina
Original language name
Joint Importance Sampling of Low-Order Volumetric Scattering
Original language description
Central to all Monte Carlo-based rendering algorithms is the construction of light transport paths from the light sources to the eye. Existing rendering approaches sample path vertices incrementally when constructing these light transport paths. The resulting probability density is thus a product of the conditional densities of each local sampling step, constructed without explicit control over the form of the final joint distribution of the complete path. We analyze why current incremental constructionschemes often lead to high variance in the presence of participating media, and reveal that such approaches are an unnecessary legacy inherited from traditional surface-based rendering algorithms. We devise joint importance sampling of path vertices inparticipating media to construct paths that explicitly account for the product of all scattering and geometry terms along a sequence of vertices instead of just locally at a single vertex. This leads to a number of practical importance sa
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
IN - Informatics
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
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
32
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
1-14
UT code for WoS article
000326923200008
EID of the result in the Scopus database
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