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
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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