| 摘要 |
A scene is rendered by a first stage of sorting (154, 158) primitives (Fig. 19) of the scene among regions of the scene and a second stage of sorting the primitives of each of the regions among sub-regions of the regions. Each of the sub-regions is processed to render the scene. State information (156) is maintained in connection with processing primitives of portions of a scene to be rendered. The state information (156) is used in rendering each of the portions of the scene to which the primitives belong. The state information (156) is divided into state partitions. Fragments of primitives are culled using a depth test (174). The colors of pixels in the scene are determined based on computations (168) with respect to separate depth sample and color grids. Color data for each one of a set of tiles of the scene are drawn from an on-chip buffer (176). Color conversion (188), color correction (186) and other post-processing operations are performed on each pixel in the image. Color separations (194) of each of the tiles are generated without storing the color data off-chip. The color separations (194) for each of the tiles are delivered to a printer or to an off-chip storage device. Post-rendering steps including half-toning (192) are performed on a tile-by-tile basis for the tiles of the scene. |
