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パラメトリック曲面のための高速光線追跡表示

Date

1986

Authors

Maciejewski, Anthony A., author
Information Processing Society of Japan, publisher

Journal Title

Journal ISSN

Volume Title

Abstract

Algorithms for ray tracing parametric surfaces are in general too computationally expensive to be widely applicable. The algorithm presented here combines well-known graphics procedures with a modified Newton iteration to provide a computationally efficient means of including parametric surfaces in a ray traced image. By allowing only planar surfaces to be reflective and/or refractive the resulting high degree of ray coherence is utilized to make the algorithm incremental and results in an order of magnitude improvement in computation speed over existing algorithms.

Description

Abstract also in Japanese.

Rights Access

Subject

ray-surface intersection
intersection calculations
ray coherence
CAD/CAM modelling
realistic images

Citation

Associated Publications