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System and method for reducing the effects of aliasing in a computer graphics system

  • US 6,429,877 B1
  • Filed: 07/30/1999
  • Issued: 08/06/2002
  • Est. Priority Date: 07/30/1999
  • Status: Expired due to Term
First Claim
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1. An anti-aliasing method comprising the steps of:

  • determining whether a pixel is an edge pixel of a filled primitive;

    approximating a coverage area of the pixel, the coverage area being the area of the pixel interior to the primitive edge;

    determining a direction from the pixel center to an external edge of the primitive; and

    blending a first color of the primitive with a second color, the second color being a color of a pixel of a second primitive adjacent the external edge.

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