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Published Articles >> Table of Contents >> Abstract
International Conference on Shape Modeling and Applications 2003
p. 272
Ray Tracing Point Set Surfaces
Anders Adamson, TU Darmstadt, GRIS
Marc Alexa, TU Darmstadt, GRIS
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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SMI.2003.1199627
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| Abstract |
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Point set surfaces (PSS) are a smooth manifold surface approximation from a set of sample points. The surface definition is based on a projection operation that constructs local polynomial approximations and respects a minimum feature size. We present techniques for ray tracing PSSs. For the computation of ray-surface intersection the properties of the projection operation are exploited: The surface is enclosed by a union of minimum feature size spheres. A ray is intersected with the spheres first and inside the spheres with local polynomial approximations. Our results show that 2-3 projections are sufficient to accurately intersect a ray with the surface.
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 Additional Information
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Index Terms- ray tracing, point sampled geometry, point
set surfaces
Citation:
Anders Adamson, Marc Alexa,
"Ray Tracing Point Set Surfaces,"
smi,
p. 272,
International Conference on Shape Modeling and Applications 2003,
2003
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