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Efficient rasterization of specular lighting in a computer graphics system

  • US 6,707,453 B1
  • Filed: 11/21/2000
  • Issued: 03/16/2004
  • Est. Priority Date: 11/21/2000
  • Status: Expired due to Fees
First Claim
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1. A scan converter for scanning edge and span portions of a graphics primitive to convert the primitive to fragments in a rasterized form of the primitive, the scan converter comprising:

  • at least one interpolator each of which is configured to calculate diffuse and specular lighting component values at each fragment of an edge or span portion of the primitive, wherein for each edge or span portion of the primitive that has a non-negligible specular lighting component, each interpolator which is to interpolate fragments of that edge or span portion separately calculates the diffuse and specular lighting component values at each such fragment of that edge or span portion of the primitive.

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