The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2025
Filed:
Mar. 15, 2020
Intel Corporation, Santa Clara, CA (US);
Johannes Guenther, Munich, DE;
Attila Tamas Afra, Satu Mare, RO;
Intel Corporation, Santa Clara, CA (US);
Abstract
Apparatus and method for double-precision traversal and intersection. For example, one embodiment of an apparatus comprises: a bounding volume hierarchy (BVH) generator to construct a BVH comprising a plurality of hierarchically arranged BVH nodes; a ray storage to store rays to be traversed through one or more of the BVH nodes; ray traversal circuitry comprising a first plurality of 64-bit arithmetic logic units (ALUs) which natively support double-precision floating point operations, the ray traversal circuitry to use at least a first ALU of the one or more ALUs to traverse a first ray through a first BVH node at a double-precision floating point precision to generate double-precision floating point traversal results; a plurality of execution units (EUs) coupled to the ray traversal circuitry, at least one of the plurality of EUs comprising a second plurality of 64-bit ALUs capable of natively performing double-precision floating point operations, the at least one of the plurality of EUs to execute one or more intersection shaders to perform ray-primitive intersection testing at double-precision floating point precision based on the double-precision floating point traversal results.