Triangle clipping for 3D graphics
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United States of America Patent
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May 8, 2007
Grant Date -
Mar 14, 2002
app pub date -
Aug 13, 1998
filing date -
Jan 15, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A geometry and lighting graphics accelerator with an improved clipping process. Clipping is performed prior to any calculation or evaluation of primitives for lighting, texture, fog, or color. Barycentric coordinates are used to define all vertices: original, intermediate, and final intersection points. Use of barycentric coordinates results in less storage space. A circular buffer is used during the clipping process to store input and output polygons. Use of the circular buffer also results is reduced storage requirements.
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Cited Art Landscape
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