Displaying 2D patches with foldover

Details Displaying 2D patches with foldover Displaying 2D patches with foldover

1998-04-07

2000-11-14

Zimmerman, Mark

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

345421, G06T 1140

Patent

active

061476897

ABSTRACT:
A method and apparatus for rendering a two dimensional (2D) patch associated with an object to achieve a smooth shading across the object where the 2D patch defines a complex gradient including at least one foldover edge. The method includes subdividing the patch until each subpatch includes no more than one foldover edge, grouping the subpatches into regions divided by a foldover edge, defining a ordering for displaying the regions and rendering the regions in order.

REFERENCES:
patent: 5333245 (1994-07-01), Vecchione
patent: 5390292 (1995-02-01), Takamura et al.
patent: 5428718 (1995-06-01), Peterson et al.
patent: 5995109 (1999-11-01), Goel et al.

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