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:
Jun. 03, 2008
Filed:
Jun. 28, 2004
Steven E. Molnar, Chapel Hill, NC (US);
Mark J. French, Raleigh, NC (US);
John S. Montrym, Los Altos Hills, CA (US);
Bengt-olaf Schneider, Yorktown Heights, NY (US);
Daniel P. Wilde, Cedar Park, TX (US);
Steven E. Molnar, Chapel Hill, NC (US);
Mark J. French, Raleigh, NC (US);
John S. Montrym, Los Altos Hills, CA (US);
Bengt-Olaf Schneider, Yorktown Heights, NY (US);
Daniel P. Wilde, Cedar Park, TX (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
A z buffer stores compressed z data represented in a planar format for one or more tiles. The compressed format includes a set of tile specific coefficients defining a plane equation for each z tested primitive intersecting the tile. The z buffer stores a maximum number of sets of tile specific coefficients for each tile, and when the maximum number of sets is exceeded for a particular tile, an uncompressed format is used to store the z data for the particular tile.