z-buffer based interpenetrating object detection for antialiasing
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Feb 14, 2006
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N/A
app pub date -
May 26, 2004
filing date -
Jul 7, 1998
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Expired
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Abstract
Graphic processor compares z-buffer values of 3D objects to detect and mark interpenetrating pixels. Tag buffer stores marked values for antialiasing effectively by over-sampling, area-based, blending, alpha edge or other pixel-processing scheme. Performance is improved by selectively antialiasing at edges and/or interpenetrations. Cost is reduced by leveraging z-buffer storage therefor. Super-sampling antialiasing reduces sampling of select interpenetration elements, thereby avoiding processing entire image.
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