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Faster ray tracing using adaptive grids

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Permanent URL	http://hdl.lib.byu.edu/1877/1288
Title	Faster ray tracing using adaptive grids
BYU Creator	Sederberg, Thomas W.
Creator	Klimaszewski, Krysztof S.
Keywords	interpolation; ray tracing; rendering (computer graphics); software performance evaluation
Description/Abstract	A new hybrid approach is presented which outperforms the regular grid technique in scenes with highly irregular object distributions by a factor of hundreds, and combined with an area interpolator, by a factor of thousands. Much has been said about scene independence of different acceleration techniques and the alleged superiority of one approach over another. Several theoretical and practical studies conducted in the past have led to the same conclusion: a space partitioning method that allows the fastest rendering of one scene often fails with another. Specialization may be the answer. This has always been pursued, consciously or not, in developing various ray-tracing systems. Despite our new algorithm's impressive efficiency, we don't interpret the new method as the fastest ray-tracing scene decomposition possible. This is because our recent groundwork experiments with a derivative method produced in some of the test scenes presented in this article produced timings that were better by approximately 50%.
Source	Klimaszewski, K., and T. W. Sederberg. "Faster Ray Tracing using Adaptive Grids." Computer Graphics and Applications, IEEE 17.1 (1997): 42-51.;
Publisher	IEEE
Date Original	1997-01
Language	English eng en
Publication Type	Articles
Type	Text
Format	application/pdf
Owning Institution	Brigham Young University
BYU College	College of Physical and Mathematical Sciences
BYU Department	Computer Science
Copyright Status	(c) 1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.;
Copyright Use Information	http://www.lib.byu.edu/generic_copyright.html

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