Adamson, Anders ; Alexa, Marc (2003)
Ray Tracing Point Set Surfaces.
International Conference on Shape Modeling and Applications 2003. Proceedings.
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
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.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2003 |
| Autor(en): | Adamson, Anders ; Alexa, Marc |
| Art des Eintrags: | Bibliographie |
| Titel: | Ray Tracing Point Set Surfaces |
| Sprache: | Deutsch |
| Publikationsjahr: | 2003 |
| Verlag: | IEEE Computer Society Press, Los Alamitos |
| Veranstaltungstitel: | International Conference on Shape Modeling and Applications 2003. Proceedings |
| Kurzbeschreibung (Abstract): | 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. |
| Freie Schlagworte: | Ray tracing, Point sampled geometry, Point set surfaces |
| Fachbereich(e)/-gebiet(e): | nicht bekannt 20 Fachbereich Informatik 20 Fachbereich Informatik > Graphisch-Interaktive Systeme |
| Hinterlegungsdatum: | 16 Apr 2018 09:05 |
| Letzte Änderung: | 16 Apr 2018 09:05 |
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