Apparatus and method decoupling visibility bins and render tile dimensions for tiled rendering
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United States of America Patent
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Mar 21, 2017
Grant Date -
Jun 16, 2016
app pub date -
Dec 15, 2014
filing date -
Dec 15, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus and method are described for decoupling visibility bins and render tile dimensions for tiled rendering. In one embodiment of the invention, a single visibility pass over the scene objects is performed and all the visibility bins are generated in parallel. This allows for high performance when the number of render tiles exceeds the number of visibility bins. The regions upon which visibility testing/recording is done is decoupled from the render tile regions in one embodiment of the invention. This allows a given visibility bin to map to multiple render tiles, thus allowing a fixed number of visibility bins to support any number of render tiles.
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