Patent ID: 7061495

Claim:
A method for interpolating tiles to a rasterizer comprising: determining pixel coverage of a plurality of graphics primitives against one or more tiles; distributing said primitives to one or more pipelines, wherein each of said pipelines is granted ownership to each of said tiles that fall into a designated screen region; using a rasterizer in each of said pipeline to receive said primitives and perform one or more graphics processing operations on said tiles; using a scan converter and a Hierarchical-Z unit to perform a coarse grain tiling process on said tiles; computing a list of tiles in a current pipeline and covered by a current graphics primitive; generating a first mask value specifying which of intermediate tiles within each of said tiles on said list are visible; generating a sub-list containing smaller quad tiles within said intermediate tiles; computing a second mask value specifying which of said quad tiles are visible and a z plane equation.