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System and method of generating interactive computer graphic images incorporating three dimensional textures

  • US 5,490,240 A
  • Filed: 07/09/1993
  • Issued: 02/06/1996
  • Est. Priority Date: 07/09/1993
  • Status: Expired due to Term
First Claim
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1. An apparatus for interactively generating computer graphic images incorporating three dimensional textures, comprising:

  • polygon orientation defining means for defining an orientation of a polygon relative to a plurality of three dimensional (3D) texture data sets, each of the 3D texture data sets being at a distinct level of detail;

    level of detail determining means for determining a level of detail of a pixel associated with said polygon;

    texture data set selecting means for selecting a first 3D texture data set and a second 3D texture data set from said plurality of 3D texture data sets in accordance with said pixel level of detail such that said first 3D texture data set represents a magnification of said pixel, and said second 3D texture data set represents a minification of said pixel;

    pixel mapping means for mapping said pixel to a first position within said first 3D texture data set and a second position within said second 3D texture data set in accordance with said orientation; and

    pixel value generating means for generating a display value for said pixel in accordance with said mapping of said pixel to said first and second positions.

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