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Ray tracing of point models

 
: Adams, Bart; Adamson, Anders

Gross, M.:
Point-based graphics
San Francisco: Kaufmann, 2007 (The Morgan Kaufmann Series in Computer Graphics)
ISBN: 978-0-12-370604-1
ISBN: 0-12-370604-1
ISBN: 978-0-12-373658-1
pp.294-312
English
Book Article
Fraunhofer IGD ()
point set surface; ray tracing; Intersection Algorithm

Abstract
In this section, the basic ray-surface intersection algorithm based on this surface definition will be discussed. Together, we introduce extensions to handle sharp features such as edges and corners and bounded, nonorientable surfaces. Custom-tailored data structures are given together with various optimizations for static point clouds as weil as free-fonn deforming point-sampled surfaces. We conclude the section with tips to efficiently implement the proposed algorithms.

: http://publica.fraunhofer.de/documents/N-73776.html