Ray Classification for Accelerated BVH Traversal
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00332678" target="_blank" >RIV/68407700:21230/19:00332678 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1111/cgf.13769" target="_blank" >https://doi.org/10.1111/cgf.13769</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/cgf.13769" target="_blank" >10.1111/cgf.13769</a>
Alternative languages
Result language
angličtina
Original language name
Ray Classification for Accelerated BVH Traversal
Original language description
For ray tracing based methods, traversing a hierarchical acceleration data structure takes up a substantial portion of the total rendering time. We propose an additional data structure which cuts off large parts of the hierarchical traversal. We use the idea of ray classification combined with the hierarchical scene representation provided by a bounding volume hierarchy. We precompute short arrays of indices to subtrees inside the hierarchy and use them to initiate the traversal for a given ray class. This arrangement is compact enough to be cache-friendly, preventing the method from negating its traversal gains by excessive memory traffic. The method is easy to use with existing renderers which we demonstrate by integrating it to the PBRT renderer. The proposed technique reduces the number of traversal steps by 42% on average, saving around 15% of time of finding ray-scene intersection on average.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
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
1467-8659
Volume of the periodical
38
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
49-56
UT code for WoS article
000477912100005
EID of the result in the Scopus database
2-s2.0-85070109176