BOX SPLITTING FOR BOUNDING VOLUME HIERARCHIES

A technique for performing ray tracing operations is provided. The technique includes, testing a plurality of bounding boxes for intersection with a ray in parallel, wherein the plurality of bounding boxes are specified by a plurality of box data items of a parent box node of a bounding volume hiera...

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Bibliographische Detailangaben
Hauptverfasser: Skinner, Daniel James, Livesley, Michael John, Oldcorn, David Ronald, Pankratz, David William John, McAllister, David Kirk
Format: Patent
Sprache:eng
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Zusammenfassung:A technique for performing ray tracing operations is provided. The technique includes, testing a plurality of bounding boxes for intersection with a ray in parallel, wherein the plurality of bounding boxes are specified by a plurality of box data items of a parent box node of a bounding volume hierarchy; determining that, for a first child node that is pointed to by a two or more node pointers specified by two or more box data items of the plurality of box data items, at least one bounding box specified by the two or more box data items is intersected by the ray; and in response to the determining, traversing to the first child node.