Temporally Coherent Adaptive Sampling for Imperfect Shadow Maps
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F13%3A00205879" target="_blank" >RIV/68407700:21230/13:00205879 - isvavai.cz</a>
Result on the web
<a href="http://dcgi.felk.cvut.cz/home/bittner/publications/egsr2013_final.pdf" target="_blank" >http://dcgi.felk.cvut.cz/home/bittner/publications/egsr2013_final.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/cgf.12154" target="_blank" >10.1111/cgf.12154</a>
Alternative languages
Result language
angličtina
Original language name
Temporally Coherent Adaptive Sampling for Imperfect Shadow Maps
Original language description
We propose a new adaptive algorithm for determining virtual point lights (VPL) in the scope of real-time instant radiosity methods, which use a limited number of VPLs. The proposed method is based on Metropolis-Hastings sampling and exhibits better temporal coherence of VPLs, which is particularly important for real-time applications dealing with dynamic scenes. We evaluate the properties of the proposed method in the context of the algorithm based on imperfect shadow maps and compare it with the commonly used inverse transform method. The results indicate that the proposed technique can significantly reduce the temporal flickering artifacts even for scenes with complex materials and textures. Further, we propose a novel splatting scheme for imperfectshadow maps using hardware tessellation. This scheme significantly improves the rendering performance particularly for complex and deformable scenes. We thoroughly analyze the performance of the proposed techniques on test scenes with det
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach
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
COMPUTER GRAPHICS FORUM
ISSN
0167-7055
e-ISSN
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Volume of the periodical
32
Issue of the periodical within the volume
4
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
87-96
UT code for WoS article
000321946800010
EID of the result in the Scopus database
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