Full-scene anti-aliasing method and system

Abstract

A method and system for performing full-scene anti-aliasing for an image through a technique of rotating and unrotating rasterization of a scene and rendering a resulting image. A scene is rasterized at a first angle relative to a first coordinate system to generate a plurality of pixels, which are then applied to a polygon surface that is rendered at a second angle equal to the inverse of the first angle. Thus, the resulting image is re-oriented with respect to the first coordinate system.

1 . A method for full-scene anti-aliased rendering of a scene, comprising:
 rasterizing the scene into a raster with the raster coordinate system rotated by a first angle relative to a viewing coordinate system;   converting pixels of the raster to texels of a texture map;   applying the texture map to a surface; and   rendering at least a portion of the surface with a surface coordinate system at a second angle relative to the viewing coordinate system, the first and second angles being related such that a region of the rendered surface portion represents a final image of the scene in a desired orientation of the scene relative to the viewing coordinate system.   
     
     
         2 - 90 . (canceled)