WATERTIGHT RAY TRIANGLE INTERSECTION

WATERTIGHT RAY TRIANGLE INTERSECTION

A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Newhall, JR., William Parsons, Muthler, Greg, Aila, Timo, Burgess, John, Ohannessian, Robert, Karras, Tero, LAINE, Samuli, Nelson, Peter, Kwong, Ian
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Beschreibung
Zusammenfassung:A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.