Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2006-07-04
2006-07-04
Nguyen, Phu K. (Department: 2673)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S501000, C708S504000
Reexamination Certificate
active
07071935
ABSTRACT:
A graphics system and method for increasing efficiency of decompressing blocks of compressed geometry data and reducing redundant transformation and lighting calculations is disclosed. Multiple decompression pipelines are used to increases the decompression speed. A control unit receives blocks of compressed geometry data information and selectively routes them to a plurality of decompression pipelines. Each decompression pipeline is configured to decompress the blocks into a set of vertices. The reduction in redundant calculations is accomplished by delaying the formation of geometric primitives until after transformation and lighting has been performed on the vertices. Transformation and/or lighting are performed independently on a vertex-by-vertex basis without reference to which geometric primitives the vertices belong to. After transformation and or lighting, geometric primitives may be formed utilizing previously generated connectivity information. The connectivity information may include mesh buffer references, vertex tags, or other types of information.
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Bjernfalk, “The Memory System Makes The Difference,” © 1999 Evans & Sutherland Computer Corporation, pp. 1-11.
Chan Jeffrey
Deering Michael F.
Tremblay Marc
Hood Jeffrey C.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Nguyen Phu K.
Sun Microsystems Inc.
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