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:
Feb. 26, 2013
Filed:
Nov. 29, 2007
Ingo Wald, Salt Lake City, UT (US);
Santiago Ize, Salt Lake City, UT (US);
Steven G. Parker, Salt Lake City, UT (US);
Aaron Knoll, Sandy, UT (US);
Ingo Wald, Salt Lake City, UT (US);
Santiago Ize, Salt Lake City, UT (US);
Steven G. Parker, Salt Lake City, UT (US);
Aaron Knoll, Sandy, UT (US);
The University of Utah Research Foundation, Salt Lake City, UT (US);
Abstract
Ray tracing a three-dimensional scene using a grid. One example embodiment is a method for ray tracing a three-dimensional scene using a grid. In this example method, the three-dimensional scene is made up of objects that are spatially partitioned into a plurality of cells that make up the grid. The method includes a first act of computing a bounding frustum of a packet of rays, and a second act of traversing the grid slice by slice along a major traversal axis. Each slice traversal includes a first act of determining one or more cells in the slice that are overlapped by the frustum and a second act of testing the rays in the packet for intersection with any objects at least partially bounded by the one or more cells overlapped by the frustum.