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Architecture and apparatus for image generation utilizing enhanced memory devices

  • US 5,481,669 A
  • Filed: 02/06/1995
  • Issued: 01/02/1996
  • Est. Priority Date: 11/13/1992
  • Status: Expired due to Fees
First Claim
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1. An image generation system, comprising:

  • (a) primitive processing means for generating primitive screen data; and

    ,(b) a plurality of rasterizers associated with said primitive processing means for computing pixel values from said primitive screen data, each of said rasterizers comprising an enhanced memory device, said enhanced memory device corresponding to a selected set of screen coordinates,(i) said enhanced memory device having for each of said selected screen coordinates,internal processing means for computing pixel values to provide a computed pixel value,storage means associated with each of said internal processing means for storing data, and,compositor buffer associated with each of said internal processing means for storing said computed pixel value, and(ii) said enhanced memory device further having,input means for receiving computed pixel values from a different one of said plurality of rasterizers,compositor means for compositing said stored computed pixel value and the pixel value received by said input means to determine a composited pixel value,output means operably associated with said compositor means for outputting said composited pixel value; and

    (c) at least one of said plurality of rasterizers further comprising external memory means operably associated with said enhanced memory device for storing imaging information.

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