Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2004-08-30
2008-08-05
Tung, Kee M. (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S629000, C345S555000
Reexamination Certificate
active
07408549
ABSTRACT:
A graphics system including a frame buffer and a processing unit. The frame buffer contains N slots per pixel. Slots are used to store fragments. Suppose the N slots for a given pixel are occupied. In response to having received (or generated) a new fragment for the pixel, the processing unit may (a) blend the two backmost slots to liberate space for the new fragment, (b) blend the new fragment with the backmost slot in a first order, or, (c) blend the new fragment and the backmost slot in a second order. The choice of (a), (b) or (c) depends on the relationship of the new fragment's z value to the z values of the two backmost slots. The processing unit may be programmably configured to perform multi-pass order independent transparency in either front-to-back order or back-to-front order.
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Mahan Justin M.
Rushforth Kevin C.
Wasserman Michael A.
Brightwell Mark K.
Hood Jeffrey C.
Hsu Joni
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Sun Microsystems Inc.
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