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Authors: Nordin Zakaria 1 ; Bahari Belaton 2 and Abdullah Zawawi Hj Talib 2

Affiliations: 1 Universiti Teknologi Petronas, Malaysia ; 2 School of Computer Science, Universiti Sains Malaysia, Malaysia

Keyword(s): Ray Tracing, Point Primitives.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Point-Based Rendering ; Rendering ; Rendering Algorithms

Abstract: We discuss in this paper a framework for simple and fast ray tracing of point-based geometry. Our solution requires neither implicit surface definition nor the use of non-simple rays. Points are simply treated as disk primitives. To prevent shading artifacts due to the use of disk representation, each ray is intersected with a few disks, and the intersection results interpolated. Further, to speed up the ray-object search, we adapt the KD-tree with bounding spheres structure applied in the QSplat point splatting system (Rusinkiewicz and Levoy 2000). Our prototype implementation is generally competitive compared to previous point set ray tracers. Further it demonstrates considerable speedup over a point set ray tracer based on a conventional KD-tree, while producing images with acceptable ray-traced quality.

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Paper citation in several formats:
Zakaria, N.; Belaton, B. and Zawawi Hj Talib, A. (2006). SIMPLE AND FAST RAY TRACING OF POINT-BASED GEOMETRY. In Proceedings of the First International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2006) - GRAPP; ISBN 972-8865-39-2; ISSN 2184-4321, SciTePress, pages 293-298. DOI: 10.5220/0001352702930298

@conference{grapp06,
author={Nordin Zakaria. and Bahari Belaton. and Abdullah {Zawawi Hj Talib}.},
title={SIMPLE AND FAST RAY TRACING OF POINT-BASED GEOMETRY},
booktitle={Proceedings of the First International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2006) - GRAPP},
year={2006},
pages={293-298},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001352702930298},
isbn={972-8865-39-2},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the First International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2006) - GRAPP
TI - SIMPLE AND FAST RAY TRACING OF POINT-BASED GEOMETRY
SN - 972-8865-39-2
IS - 2184-4321
AU - Zakaria, N.
AU - Belaton, B.
AU - Zawawi Hj Talib, A.
PY - 2006
SP - 293
EP - 298
DO - 10.5220/0001352702930298
PB - SciTePress

- Science and Technology Publications, Lda.
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