What is Trilinear-Filtering, and how do it work ???

What is Trilinear-Filtering, and how do it work( how to activate it) ???

Trilinear filtering is when the texel value is not only calculated from the neighboring pixels, but also from the next mipmap level. To activate it use the GL_LINEAR_MIPMAP_LINEAR filtering setting.
(I think this is it…)

FooLman