Patent ID: 7239325

Claim:
An image generation circuit, comprising: a preprocessing portion operably coupled to receive primitive parameters, wherein the preprocessing portion produces pixel information from the primitive parameters based on the primitive parameters; a pixel engine operably coupled to the preprocessing portion, wherein the pixel engine receives the pixel information, and calculates intermediate data from the pixel information; and a memory operably coupled to the pixel engine, wherein the memory stores the intermediate data; wherein the pixel engine reads the intermediate data from the memory and calculates a final data from the fed-back intermediate data; wherein a two-dimensional image is generated by texture mapping to three-dimensional polygons; wherein an overall pattern is generated on said polygons by mapping of basic textures; wherein mapping of modulation textures by amplitude modulation is executed by amplitude modulation processing on patterns generated based on the mapping of said basic textures; and wherein a repetition period of said basic textures and a repetition period of said modulation textures are offset from each other.