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...

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Bibliographic Details
Main Authors Muthler, Greg, Aila, Timo, Burgess, John, Ohannessian, Robert, Karras, Tero, Newhall, Jr., William Parsons, Laine, Samuli, Nelson, Peter, Kwong, Ian
Format Patent
LanguageEnglish
Published 03.11.2020
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary: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.
Bibliography:Application Number: US201816101148