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Practical Ray Tracing of Trimmed NURBS Surfaces (2000)
| Venue: | Journal of Graphics Tools |
| Citations: | 27 - 1 self |
BibTeX
@ARTICLE{Martin00practicalray,
author = {William Martin and Elaine Cohen and Russell Fish and Peter Shirley},
title = {Practical Ray Tracing of Trimmed NURBS Surfaces},
journal = {Journal of Graphics Tools},
year = {2000},
volume = {5},
pages = {27--52}
}
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Abstract
A system is presented for ray tracing trimmed NURBS surfaces. While approaches to components are drawn largely from existing literature, their combination within a single framework is novel. This paper also differs from prior work in that the details of an efficient implementation are fleshed out. Throughout, emphasis is placed on practical methods suitable to implementation in general ray tracing programs. 1 Introduction The modeling community has embraced trimmed NURBS as a primitive of choice. The result has been a rapid proliferation in the number of models utilizing this representation. At the same time, ray tracing has become a popular method for generating computer graphics images of geometric models. Surprisingly, most ray tracing programs do not support the direct use of untessellated trimmed NURBS surfaces. The direct use of untessellated NURBS is desirable because tessellated models increase memory use which can be detrimental to runtime efficiency on modern architectures. ...
Keyphrases
trimmed nurbs surface practical ray tracing nurbs surface ray tracing direct use efficient implementation untessellated nurbs modern architecture tessellated model prior work memory use practical method rapid proliferation popular method ray tracing program geometric model single framework general ray modeling community computer graphic image
