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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.:

US 8963918 B1

PDFFull Text
Date of Patent:
Feb. 24, 2015

Filed:

Sep. 30, 2008

Ray tracing on graphics hardware using kd-trees

Applicants:

Kun Zhou, Beijing, CN;

Hou Qiming, Beijing, CN;

Baining Guo, Redmond, WA (US);

Inventors:

Kun Zhou, Beijing, CN;

Hou Qiming, Beijing, CN;

Baining Guo, Redmond, WA (US);

Assignee:

Microsoft Corporation, Redmond, WA (US);

Attorneys:

Dan Choi

Peter Taylor

Micky Minhas

Primary Examiner:

Phu K Nguyen

Int. Cl.
CPC ...
G06T 15/00 (2011.01); G06T 15/06 (2011.01); G06T 17/00 (2006.01);
U.S. Cl.
CPC ...
G06T 15/06 (2013.01); G06T 17/005 (2013.01);
Abstract

Described is a technology by which a ray tracer incorporates a GPU-based kd-tree builder for rendering arbitrary dynamic scenes. For each frame, the ray tracer builds a kd-tree for the scene geometry. The ray tracer spawns and traces eye rays, reflective and refractive rays, and shadow rays. For each ray to be traced, the ray tracer walks through the kd-tree until it reaches leaf nodes and associated triangles. When a ray passes through both sides of a splitting plane, the 'far' sub-tree is pushed into the stack and the 'near' sub-tree is traversed first.

Find Patent Forward Citations

Zhou, Kun. (2015). Ray tracing on graphics hardware using kd-trees (U.S. Patent No. 8963918). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8963918

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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