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Method for reducing the rendering load for high depth complexity scenes on a computer graphics display

  • US 6,052,125 A
  • Filed: 01/07/1998
  • Issued: 04/18/2000
  • Est. Priority Date: 01/07/1998
  • Status: Expired due to Term
First Claim
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1. A method for increasing a rate of rendering a synthetic image on a computer display, wherein the synthetic image is generated from a database of modeled primitives, said method comprising the steps of:

  • (1) performing a plurality of geometric sorting calculations on the database of modeled primitives in the frame buffer to thereby prepare the synthetic image for rendering;

    (2) bypassing rendering operations for frame buffer regions which are completely covered;

    (3) recording frame buffer regions in a fall buffer which are correctly covered;

    (4) monitoring a length of time required to render the synthetic image to determine if a rendering load is excessive; and

    (5) increasing a number of eometric sortings being calculated if the rendering load is excessive to thereby decrease the rendering load.

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