Publication detail
Yet Faster Ray-Triangle Intersection (Using SSE4)
HAVEL, J. HEROUT, A.
Original Title
Yet Faster Ray-Triangle Intersection (Using SSE4)
Type
journal article - other
Language
English
Original Abstract
Ray-triangle intersection is an important algorithm, not only in thefield of realistic rendering (based on ray tracing), but also inphysics simulation, collision detection, modelling, etc. Obviously, thespeed of this well-defined algorithm's implementations is importantbecause calls to such a routine are numerous in rendering andsimulation applications. Contemporary fast intersection algorithms,which use SIMD instructions, focus on the intersection of ray packetsagainst triangles. For intersection between single rays and triangles,operations such as horizontal addition or dot product are required. TheSSE4 instruction set adds the dot product instruction which can be usedfor this purpose. This article presents a new modification of the fastray-triangle intersection algorithms commonly used, which - whenimplemented on SSE4 - outperforms the current state-of-the-artalgorithms. It also allows both a single ray and ray packetintersection calculation with the same precomputed data. The speed gainmeasurements are described and discussed in the article.
Keywords
Geometric algorithms, languages, and systems, Raytracing, Graphics data structures and data types
Authors
HAVEL, J.; HEROUT, A.
RIV year
2010
Released
1. 5. 2010
ISBN
1077-2626
Periodical
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
Year of study
2010
Number
3
State
United States of America
Pages from
434
Pages to
438
Pages count
5
URL
BibTex
@article{BUT48026,
author="Jiří {Havel} and Adam {Herout}",
title="Yet Faster Ray-Triangle Intersection (Using SSE4)",
journal="IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS",
year="2010",
volume="2010",
number="3",
pages="434--438",
issn="1077-2626",
url="http://www2.computer.org/portal/web/csdl/doi/10.1109/TVCG.2009.73"
}