SAH-Optimized k-DOP Hierarchies for Ray Tracing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00377395" target="_blank" >RIV/68407700:21230/24:00377395 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1145/3675391" target="_blank" >https://doi.org/10.1145/3675391</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1145/3675391" target="_blank" >10.1145/3675391</a>
Alternative languages
Result language
angličtina
Original language name
SAH-Optimized k-DOP Hierarchies for Ray Tracing
Original language description
We revisit the idea of using hierarchies of k-sided discrete orientation polytopes (k-DOPs) for ray tracing. We propose a method for building a k-DOP-based bounding volume hierarchy while optimizing its topology using the surface area heuristic. The key component of our method is a fast and exact algorithm for evaluating the surface area of a 14-DOP combined with the parallel locally ordered clustering algorithm (PLOC). Our k-DOP PLOC builder has about 40% longer build times than AABB PLOC, but for scenes with oblong slanted objects, the resulting BVH provides up to 2.5x ray tracing speedup over AABB BVH. We also show that k-DOPs can be used in combination with other techniques, such as oriented bounding boxes (OBBs). Transforming k-DOP BVH into OBB BVH is straightforward and provides up to 12% better trace times than the transformation from AABB to OBB BVH.
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
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Proceedings of the ACM on Computer Graphics and Interactive Techniques
ISSN
2577-6193
e-ISSN
2577-6193
Volume of the periodical
7
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
1-16
UT code for WoS article
001299535100003
EID of the result in the Scopus database
2-s2.0-85201075228