Patent ID: 7663642

Claim:
A polygon rendering system for rendering a polygon in an image to be displayed, said system comprising: a rasterizer unit configured to generate one or more low resolution fragments representing a portion of said polygon at a first resolution and one or more high resolution fragments representing a portion of said polygon at one or more higher resolutions than said first resolution; a first memory buffer configured to store said low resolution fragments as pixels and data based on said one or more high resolution fragments; and one or more additional memory buffers configured to store said high resolution fragments as high resolution sub-pixels, wherein said one or more higher resolutions comprises a first high resolution and a second high resolution, wherein said second high resolution is greater than said first high resolution, and wherein said rasterizer unit is further configured to render an incoming fragment at said first high resolution if said incoming fragment corresponds to an edge line of said polygon having a slope within a pre-determined range and render said incoming fragment at said second high resolution if said incoming fragment corresponds to an edge line of said polygon having a slope not within said predetermined range.