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Method and apparatus for deferred video rendering

  • US 6,084,591 A
  • Filed: 04/29/1997
  • Issued: 07/04/2000
  • Est. Priority Date: 04/29/1997
  • Status: Expired due to Term
First Claim
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1. A method for deferred video rendering, the method comprising the steps of:

  • a) receiving at least a portion of an object element list, wherein the object element list includes an object element identifier and corresponding display parameters for a plurality of object elements to be displayed in at least a portion of a display;

    b) determining x and y parameters of an object element of the plurality of object elements from the at least a portion of the object element list;

    c) comparing a plurality of z components of the object element with a plurality of stored z components based on x and y coordinates of the at least a portion of the display, wherein the stored z components are stored in a first memory, wherein the entries of the first memory are based on the x and y coordinates;

    d) overwriting a stored z component of the stored z components with a z component of the plurality of z components when the z component compares favorably with the stored z component;

    e) overwriting a stored object element identifier with an object element identifier of the object element when the z component compares favorably with the stored z component, wherein the object element identifier is stored in an entry of a second memory, wherein entries of the second memory are based on the x and y coordinates; and

    f) when the plurality of z components of each of the plurality of object elements has been compared, generating pixel information from the object element identifiers stored in the second memory and the at least a portion of the object element list.

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