Patent Document ID: 7511717
Application ID: 11182676
Patent Status: 1

Claim One:
1. A system for generating a color value for a pixel from geometry data including at least one primitive, the system comprising: a multisampling rasterizer configured to receive a primitive of the geometry data and perform a multisampling operation on the pixel using the primitive, the multisampling operation generating a plurality of depth values at a plurality of depth locations for the pixel and one shading value, the shading value being associated with each of the plurality of depth locations; control logic configured to use the multisampling rasterizer to perform a plurality of multisampling operations on the pixel using a same primitive of the geometry data, wherein the control logic is further configured to use the multisampling rasterizer to perform a multisampling operation on the geometry data for each of a plurality of sub-pixels at different locations within the pixel and wherein the multisampling rasterizer is instructed to use a display resolution larger than a true display resolution; and a downfiltering unit configured to combine the shading values generated during the plurality of multisampling operations, thereby generating a color value for the pixel; and a frame buffer for storing the shading value at each depth location, wherein the downfiltering unit is further configured to read the shading values from the frame buffer and wherein the downfiltering unit includes: a texture processing unit configured to fetch a plurality of subsets of the shading values for the pixel from the frame buffer as texels and to blend each subset of the shading values, thereby generating a plurality of intermediate values; and a shader configured to blend the intermediate values, thereby generating the color value for the pixel.