Difference between revisions of "TrilinearFiltering"

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#REDIRECT [[Glossary#Trilinear_Filtering]]
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= Trilinear Filtering =
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A method of [[MipMap|MIP mapping]]. Since the [[Texel|texels]] are almost always larger or smaller than the screen [[Pixel|pixels]], it finds two MIP-maps whose texels are closest in size to the screen pixels: one with larger texels, and the other with smaller texels. For each of the two MIP-maps, it then [[Interpolation|interpolates]] the four texels that are the nearest to each screen pixel. In the final step it averages between the two MIP results to render the final screen pixel.
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Trilinear mip-mapping requires more than twice the computational cost of [[BilinearFiltering|bilinear filtering]], but the textures are filtered very nicely, with a clean result.
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[[Category:Glossary]]
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Revision as of 21:09, 9 October 2014

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