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Ray traversal algorithms use cache with a memory bandwidth requirement is minimized has been optimized
Ray traversal algorithms use cache with a memory bandwidth requirement is minimized has been optimized
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机译：射线遍历算法使用缓存，并且内存带宽要求已最小化
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摘要
To provide an apparatus and a more efficient technique for performing the present invention relates ray tracing. Embodiment of the present invention comprises is a method and apparatus for recording the history of the traversing light beam passing through the spatial index structure, to use a traverse history recorded. First, when the light beam traverses a spatial index, the image processing system can determine whether the ray intersects with any node. The result of the intersection test node, it is possible to be recorded when the beam traverses the spatial index is associated with the determination rays recorded. The image processing system may be based on some probability corresponding to primitives corresponding to the nodes constituting the spatial index to determine the traversal path. It is also possible to record the traverse path, and associated with light. If you need to re-traverse the spatial index later, the image processing system, using a traverse history recorded, the light beam - that eliminates the need to recalculate the node crossing, to eliminate determination of the traverse path incorrect possible. [Selection Figure 6
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