A method and computer graphics system capable of implementing multiple pipelines for the parallel processing of graphics data. For certain data, a requirement may exist that the data be processed in order. The graphics system may use a set of tokens to reliably switch between ordered and unordered data...http://www.google.com.tw/patents/US20020085007?utm_source=gb-gplus-share專利 US20020085007 - Graphics system configured to parallel-process graphics data using multiple pipelines