Stochastic sampling with constant density in object space for anisotropic texture mapping
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United States of America Patent
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Jun 4, 2002
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N/A
app pub date -
Sep 10, 1999
filing date -
Sep 10, 1999
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Abstract
A method and apparatus, in a computer graphics display system, for producing Anisotropic Texture using constant density object space stochastic sampling. The approach of this invention uniformly samples the footprint of the pixel as mapped into a texture array to determine what complete and fractional texels are covered by the pixel's projected footprint. The sample density remains a constant and is determined by the area of the pixel footprint projection in texture space. Due to variations in footprint projections, each pixel may require a different number of samples, but the sample per texel density remains approximately constant. The intensity is the average of the sample points within the footprint.
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