Appearance determination using fragment reduction

Details Appearance determination using fragment reduction Appearance determination using fragment reduction

2004-02-12

2010-02-02

Johnson, M Good (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S581000, C345S582000, C345S589000, C345S421000, C345S428000, C345S613000

Reexamination Certificate

active

07656417

ABSTRACT:
A method for determining the appearance of a pixel includes receiving fragment data for a pixel to be rendered; storing the fragment data; and determining an appearance value for the pixel based on the stored fragment data, wherein a portion of the stored fragment data is dropped when the number of fragment data per pixel exceeds a threshold value enabling large savings in memory footprint without impacting perceivably on the image quality. A graphics processor includes a rasterizer operative to generate fragment data for a pixel to be rendered in response to primitive information; and a render back end circuit, coupled to the rasterizer, operative to determine a pixel appearance value based on the fragment data by dropping the fragment data having the least effect on pixel appearance.

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