Patent ReferencesGrayscale character generator and method Texture mapping for computer graphics display controller system Patent #: 5097427 InventorsApplicationNo. 494706 filed on 03/16/1990US Classes:345/587MIP mapExaminersPrimary: Harkcom, Gary V.Assistant: Ba, Huynh Attorney, Agent or FirmInternational ClassG09B 009/08AbstractMethods for texture mapping graphics primitives in a graphics pipeline architecture system. The methods utilize rectangular box filters to down-sample original texture maps thereby optimizing aliasing and blurring when graphics primitives have a two-dimensional texture mapped to a three-dimensional object. The methods of texture mapping graphics primitives in a frame buffer graphics system comprise the steps of determining an original texture map of two dimensions for a surface, storing the original texture map in the frame buffer, sampling the original texture map independently using an asymmetrical filter to construct multiple versions of a texture and to address textured pixels on a display in the frame buffer graphics systems, mapping the textured pixels to areas on the frame buffer, and displaying the textured graphics primitives on the display. A technique for addressing textured pixels stored in a rectangular texture (RIP) map is also described. | |