OpenGL guy said:Only if trilinear is enabled Remember, AF is a min/mag filter, the mip filter is not specified; "trilinear" normally refers to the min/mag/mip filters all being linear.
The term "anisotropic filtering" does not specify the type of mipmap filtering, but that setting is still specified somewhere, either explicitly or implicitly. The default is point sampling (in D3D at least, I assume OGL is the same), but the programmer can specify point or linear. If the application is requesting linear minification/magnification filters with linear mipmap filtering, and the driver sets it to anisotropic minification/magnification, it cannot also change it to point sampilng for mipmaps and use the excuse that it wasn't specified.