Computer graphics processing and selective visual display system – Computer graphics processing – Graphic manipulation
Reexamination Certificate
2005-08-02
2008-12-16
Johnson, M Good (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Graphic manipulation
C345S623000, C345S621000
Reexamination Certificate
active
07466322
ABSTRACT:
Vertices defining a graphics primitive are converted into homogeneous space and clipped against a single clipping plane, the w=0 plane, to produce a clipped graphics primitive having vertices including w coordinates that are greater than or equal to zero. Rasterizing a graphics primitive having a vertex with a w coordinates that is greater than or equal to zero is less complex than rasterizing a graphics primitive having a vertex with a w coordinate that is less than zero. Clipping against the w=0 plane is less complex than conventional clipping since conventional clipping may require that the graphics primitive be clipped against each of the six faces of the viewing frustum to produce a clipped graphics primitive.
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Moreton Henry P.
Parikh Vimal S.
Tao Andrew J.
Good Johnson M
NVIDIA Corporation
Patterson & Sheridan L.L.P.
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