Patent
1993-12-15
1996-06-11
Herndon, Heather R.
395132, G06T 1550
Patent
active
055264719
ABSTRACT:
A system and method for determining and applying the effect of light polarization on the rendering of graphics objects. A polarization state buffer is provided to maintain polarization state on a pixel by pixel basis for each pixel in a frame buffer. As graphics objects are rendered the polarization state information is updated based on the underlying opaque surface, the polarization state of the light, and the characteristics of non-opaque objects being drawn. Pixel intensity is adjusted based on the degree of polarization, and the angle of the polarization axis. An approximation of the pixel intensity function is implemented using standard hardware logic.
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Bowen Andrew D.
Tannenbaum David C.
Fetting Anton W.
Herndon Heather R.
International Business Machines - Corporation
Walker Mark S.
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