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:
Nov. 06, 2007
Filed:
Aug. 11, 2004
Craig M. Wittenbrink, Palo Alto, CA (US);
Henry Packard Moreton, Woodside, CA (US);
Douglas A. Voorhies, Menlo Park, CA (US);
John S. Montrym, Los Altos Hills, CA (US);
Vimal S. Parikh, Fremont, CA (US);
Craig M. Wittenbrink, Palo Alto, CA (US);
Henry Packard Moreton, Woodside, CA (US);
Douglas A. Voorhies, Menlo Park, CA (US);
John S. Montrym, Los Altos Hills, CA (US);
Vimal S. Parikh, Fremont, CA (US);
NVIDA Corporation, Santa Clara, CA (US);
Abstract
Clipping techniques introduce additional vertices into existing primitives without requiring creation of new primitives. For an input triangle with one vertex on the invisible side of a clipping surface, a quadrangle can be defined. The vertices of the quadrangle are the two internal vertices of the input triangle and two clipped vertices. For determining attribute values for pixel shading, three vertices of the quadrangle are selected, and a parameter value for an attribute equation is computed using the three selected vertices. For determining pixel coverage for the quadrangle, the three edges that do not correspond to the edge created by clipping are used.