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Method for controlling a 3D patch-driven special effects system

  • US 5,369,735 A
  • Filed: 01/28/1994
  • Issued: 11/29/1994
  • Est. Priority Date: 03/30/1990
  • Status: Expired due to Term
First Claim
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1. A method for controlling a patch-driven video 3D special effects system which constructs an output display of a desired three-dimensional shape with real-time video picture information displayed on a surface of said shape, by dividing a video source plane into a plurality of polygonal patches and manipulating said patches in three dimensions to create said shape, said method comprising the steps of:

  • A) receiving a plurality of inputs from a user defining a plurality of control parameters;

    B) dividing said source plane into a plurality of polygonal patches by means of a number of straight line segments, the number of said patches determined by a first of said control parameters, said line segments being segments of lines that emanate from a point located at a position determined by a second of said control parameters;

    C) rotating at least one of said patches around one of said straight line segments at an angle specified by at least a third one of said control parameters to construct said shape having a size, orientation and position; and

    D) manipulating said shape size, said shape orientation and said shape position in accordance with a fourth, fifth and sixth of said control parameters.

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