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ASSIGNING PRIMITIVES TO TILES IN A GRAPHICS PROCESSING SYSTEM
ASSIGNING PRIMITIVES TO TILES IN A GRAPHICS PROCESSING SYSTEM
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机译:在图形处理系统中为平铺分配主语
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摘要
A tiling unit assigning primitives to tiles in a graphics processing system which has a rendering space subdivided into a plurality of tiles. Each tile can comprise one or more polygonal region. Mesh logic of the tiling unit can determine that a plurality of primitives form a mesh and can determine whether the mesh entirely covers a region. If the mesh entirely covers the region then a depth threshold for the region can be updated so that subsequent primitives which lie behind the depth threshold are culled (i.e. not included in the display list for a tile). This helps to reduce the number of primitive IDs included in a display list for a tile which reduces the amount of memory used by the display list and reduces the number of primitives which a hidden surface removal (HSR) module needs to fetch to perform HSR on the tile.
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