Unity Game Optimization - Third Edition

Adjusting anisotropic filtering levels

Anisotropic filtering is a feature that improves the image quality of textures when they are viewed at very oblique (shallow) angles. The following screenshot shows the classic example of painted lines on a road with and without anisotropic filtering applied:

In either case, the painted lines close to the camera appear fairly clear, but things change as they get further away from the camera. Without anisotropic filtering, the distant painted lines get more and more blurry and distorted, whereas these lines remain crisp and clear with anisotropic filtering applied.

The strength of anisotropic filtering ...