Maciejewski, Anthony A., authorInformation Processing Society of Japan, publisher2007-01-032007-01-031986Maciejewski, Anthony A., パラメトリック曲面のための高速光線追跡表示, 情報処理学会研究報告グラフィクスとCAD（CG）86, no. 43 (July 1986): 1-9.http://hdl.handle.net/10217/67338Abstract also in Japanese.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.born digitalchapter titlesjpn©1986 Information Processing Society of Japan.Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.ray-surface intersectionintersection calculationsray coherenceCAD/CAM modellingrealistic imagesText