专利名称：GRAPHICS PROCESSING SYSTEMS
发明人：Andreas Due Engh-Halstvedt,Frank Langtind申请号：US15246970申请日：20160825
公开号：US20170061678A1公开日：20170302
专利附图：
摘要：A tile-based graphics processing pipeline includes a back-facing determinationand culling unit that is operable to cull back-facing triangles before the tiling stage. Theback-facing determination and culling unit include a triangle size estimator that estimatesthe size of a triangle being considered. If the size of the triangle is less than a selected
size, then the area of the triangle is calculated using fixed point arithmetic and the resultof that area calculation is used by a back-face culling unit to determine whether to cullthe triangle or not. On the other hand, if the size estimator determines that the primitiveis greater than the selected size, then the triangle bypasses the fixed point areacalculation and back-face culling unit and is instead passed directly to the tiler.
申请人：ARM Limited
地址：Cambridge GB
国籍：GB
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