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Authors: José María Noguera 1 ; Carlos Ureña 2 and Rubén Jesús García 2

Affiliations: 1 Escuela Politécnica Superior, University of Jaén, Spain ; 2 University of Granada, Spain

Keyword(s): Raytracing, SIMD.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Fundamental Methods and Algorithms ; Geometry and Modeling

Abstract: This article presents an optimized ray tracing algorithm which improves standard existing algorithms by processing simultaneously a large set of rays and carrying out a single traversal of the spatial indexing of the scene with all rays. This allows hardware SIMD functionality to be used efficiently and produces coherent memory accesses. Furthermore, during the single traversal, rays are grouped in such a way that these advantages are maintained for non coherent ray sets. The algorithm was observed to reduce the computation costs with respect to other standard solutions, especially for non coherent ray sets. It is worth noting that its characteristics make it especially suitable for graphics hardware.

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Paper citation in several formats:
Noguera, J.; Ureña, C. and Jesús García, R. (2009). A VECTORIZED TRAVERSAL ALGORITHM FOR RAY TRACING. In Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - GRAPP, (VISIGRAPP 2009) ISBN 978-989-8111-67-8; ISSN 2184-4321, pages 58-63. DOI: 10.5220/0001767500580063

@conference{grapp09,
author={José María Noguera. and Carlos Ureña. and Rubén {Jesús García}.},
title={A VECTORIZED TRAVERSAL ALGORITHM FOR RAY TRACING},
booktitle={Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - GRAPP, (VISIGRAPP 2009)},
year={2009},
pages={58-63},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001767500580063},
isbn={978-989-8111-67-8},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - GRAPP, (VISIGRAPP 2009)
TI - A VECTORIZED TRAVERSAL ALGORITHM FOR RAY TRACING
SN - 978-989-8111-67-8
IS - 2184-4321
AU - Noguera, J.
AU - Ureña, C.
AU - Jesús García, R.
PY - 2009
SP - 58
EP - 63
DO - 10.5220/0001767500580063