| 摘要 |
PROBLEM TO BE SOLVED: To keep room for improvement of trying to reduce the problem of "over draw" in a graphics processing system in a constitution of a conventional technology. SOLUTION: In this graphics processing system, a command list reader 3 first reads-in and identifies a portion of a command list. The primitives corresponding to the commands included in the portion of the command list are then subjected to a Z-only processing pass. This allows a Z-buffer 16 and a hierarchical Z-pyramid 8 to be filled with the appropriate Z-values for the primitives. The primitives are then subjected to a second, normal rendering, processing pass, but the filled Z-buffer 16 and Z-pyramid 8 from the first processing pass are used together with the Z-tests 7 and 10 performed in the second processing pass to determine which primitive should be processed for each sampling point in the second processing pass. COPYRIGHT: (C)2010,JPO&INPIT |
