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Ray Tracing Point Set Surfaces

Adamson, Anders ; Alexa, Marc (2003)
Ray Tracing Point Set Surfaces.
International Conference on Shape Modeling and Applications 2003. Proceedings.
Conference or Workshop Item, Bibliographie

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.

Item Type: Conference or Workshop Item
Erschienen: 2003
Creators: Adamson, Anders ; Alexa, Marc
Type of entry: Bibliographie
Title: Ray Tracing Point Set Surfaces
Language: German
Date: 2003
Publisher: IEEE Computer Society Press, Los Alamitos
Event Title: International Conference on Shape Modeling and Applications 2003. Proceedings
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.

Uncontrolled Keywords: Ray tracing, Point sampled geometry, Point set surfaces
Divisions: UNSPECIFIED
20 Department of Computer Science
20 Department of Computer Science > Interactive Graphics Systems
Date Deposited: 16 Apr 2018 09:05
Last Modified: 16 Apr 2018 09:05
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