| 摘要 |
A computing system capable of parallelizing the operation of multiple graphics processing pipelines (GPPLs), The computing system includes a parallel graphics processing subsystem (PGPS) supporting an object-division mode of parallel operation, including at least four stages, namely, decomposition, distribution, rendering and recomposition. The PGPS includes a z-buffering mechanism, wherein the frame buffer has a color value for each pixel, and the z-depth buffer has the same number of entries as the color frame buffer, and stores a z-value for each pixel in the color frame buffer. The z-buffer is initialized to zero, representing the z-value at the back clipping plane of the 3D scene, and the frame buffer is initialized to the background color. The largest value that can be stored in the z-buffer represents the z value of the front clipping plane.
|
