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Method and apparatus for composing layered synthetic graphics filters

  • US 6,072,501 A
  • Filed: 06/27/1997
  • Issued: 06/06/2000
  • Est. Priority Date: 06/27/1997
  • Status: Expired due to Term
First Claim
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1. A method for composing an image with a computer illustration system, comprising the steps of:

  • defining a list of shapes in a memory;

    specifying each of a plurality of shapes in the list of shapes to be a lens with a filtering function that applies to at least one other shape in the list of shapes;

    assigning a composition order to each lens specified in the list of shapes to have one of a front-to-back ordering and a back-to-front ordering;

    said assigning step assigning at least one of the lenses to have a front-to-back ordering and at least another of the lenses to have a back-to-front ordering; and

    forming each shape in the list of shapes to compose the image.

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