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Texture compositing apparatus and method

  • US 5,870,102 A
  • Filed: 04/08/1998
  • Issued: 02/09/1999
  • Est. Priority Date: 11/03/1995
  • Status: Expired due to Term
First Claim
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1. An apparatus receiving a source image signal and a plurality of texture signals each representing a texture, for combining the source image signal with signals representing at least two of the textures during a single pixel rendering pass, the apparatus comprising:

  • a first texture composite unit, disposed to receive the source image signal and a first texture signal of the plurality of texture signals, the source image signal and the first texture signal representing independent textures, and a first control signal representing a first relationship between the source image signal and the first texture signal, for combining the source image signal and the first texture signal in accordance with the first relationship to generate a first output texture signal;

    a second texture composite unit, disposed to receive the first output texture signal, a second texture signal of the plurality of texture signals, and a second control signal representing a second relationship between the first output texture signal and the second texture signal, for combining the first output texture signal and the second texture signal in accordance with the second relationship to generate a second output texture signal, wherein the second output texture signal is generated from the source image signal, the first texture signal, and the second texture signal in a single pixel rendering pass.

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