Object and Ray Coherence in the Optimization of the Ray Tracing Algorithm
Computer Graphics International（1998）
摘要
Our proposal for ray tracing optimization is based on the combined rise of abject and ray coherence when tracing beams irt scenes subdivided by octrees. With this algorithm we take advantage of the benefits of space subdivision structures (octrees), facilitating that a ray only has to calculate its intersection with a reduced number of objects (those located in the node to which the ay has arrived). On the other hand the simultaneous tracing of rays integrated in a beam reduces the necessary time to obtain the final image.
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关键词
computer graphics,octrees,optimisation,ray tracing,beam tracing,intersection,object coherence,octrees,ray coherence,ray tracing algorithm optimization,scenes,space subdivision structures
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