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Lecture 14: Material Modeling (40)

We previously talked about bilinear and trilinear filtering as a way of reducing aliasing in textures. But neither of these techniques take the viewing angle into account. For anisotropic surfaces, there is a similar technique called anisotropic filtering for enhancing the quality of textures that are far away and steeply angled with respect to the point of view. It works by reducing detail in one direction more than another.

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