PROCESSING OF COMPUTER GRAPHICS

摘要

A graphics processing platform includes a rasteriser (50) that receives primitives representing an image to be displayed for processing. The rasteriser (50) determines which sets of sampling points of the image include sampling points that are covered by a given primitive, and then generates a fragment for rendering for each set of sampling points found to include a sampling point that is covered by the primitive and passes those fragments to a renderer (51) for rendering. The renderer (51) carries out rendering operations on the fragments that it receives, and stores the rendered fragment data in tile buffers (52). The rendered fragment data is stored in multiple copies in the appropriate sample positions in the tile buffers (52), so as to provide a separate set of fragment data for each individual sample position taken of the image. The data from the tile buffers (52) is input to a downsampling unit (53), and thence output to a frame buffer (54) of a display device (55) for display.