Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2011-07-12
2011-07-12
Caschera, Antonio A (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S420000, C345S422000, C345S581000, C345S606000
Reexamination Certificate
active
07978193
ABSTRACT:
Methods and apparatus render images of digital objects or prepare digital objects for subsequent processing. The method includes sorting data representative of positions of at least three vertices of polygons of a digital object, then determining whether the orientation of the vertices of each polygon from a specific reference point differs from the actual, or original, orientation of the vertices. Such a determination may be made by generating an orientation decision variable based on the relative positions of the vertices and calculating a cross product term (CPT) after the vertex data has been sorted. The CPT may also be used in other operations involving the polygon, such as in imparting appearance characteristics to the polygon. The method may be embodied as a computer program that controls the operation of a processor. Accordingly, processors, computers, and systems that render images of digital objects in accordance with the method are also disclosed.
REFERENCES:
patent: 5357600 (1994-10-01), Shirman et al.
patent: 5407082 (1995-04-01), Childress et al.
patent: 5651106 (1997-07-01), Ashburn
patent: 5748198 (1998-05-01), Takeda et al.
patent: 5757321 (1998-05-01), Billyard
patent: 5898437 (1999-04-01), Deolaliker
patent: 5914721 (1999-06-01), Lim
patent: 5977980 (1999-11-01), Aleksicy
patent: 6005580 (1999-12-01), Donovan
patent: 6222556 (2001-04-01), Penna
patent: 6304265 (2001-10-01), Harris et al.
patent: 6437780 (2002-08-01), Baltaretu et al.
patent: 6529207 (2003-03-01), Landau et al.
patent: 6937236 (2005-08-01), Harkin
patent: 7619624 (2009-11-01), Harkin
Blinn, James F. “Backface Culling Snags,” Nov. 1993, IEEE Computer Graphics & Applications vol. 13, pp. 94-97.
Caschera Antonio A
Lerner David Littenberg Krumholz & Mentlik LLP
Round Rock Research, LLC
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