Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2002-09-06
2009-12-22
Richer, Aaron M (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
Reexamination Certificate
active
07636095
ABSTRACT:
A method for rendering an object including receiving a pixel tile representing a portion of a primitive to be rendered, determining attributes of a reference pixel within the pixel tile, and determining the attributes of neighboring pixels within the pixel tile based on barycentric differences relative to the reference pixel is disclosed. A circuit for calculating at least one attribute of an object to be rendered includes an initial calculation circuit providing full precision reference pixel attribute data in response to a pixel tile that defines at least a portion of the object; and a derivative circuit, operatively coupled to the initial calculation circuit, providing reduced precision neighboring pixel attribute data in response to the pixel tile. The derivative circuit includes a plurality of pixel attribute sub-circuits or components, which determine the attribute values of neighboring pixels within the pixel tile at a precision less than that of the precision used to define the reference pixel.
REFERENCES:
patent: 5594846 (1997-01-01), Donovan
patent: 5793435 (1998-08-01), Ward et al.
patent: 6191772 (2001-02-01), Mical et al.
patent: 6204856 (2001-03-01), Wood et al.
patent: 6213653 (2001-04-01), Borg et al.
patent: 6275235 (2001-08-01), Morgan, III
patent: 6573909 (2003-06-01), Nagao
patent: 6654492 (2003-11-01), Sasai
patent: 6791569 (2004-09-01), Millet et al.
patent: 2003/0160799 (2003-08-01), Emberling et al.
Lefebvre Laurent
Morein Stephen L.
Wilkinson Jay C.
ATI Technologies Inc.
Richer Aaron M
Vedder Price P.C.
LandOfFree
Pixel delta interpolation method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pixel delta interpolation method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pixel delta interpolation method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4073950