I would like to comment that this is not a duplicate as the other post is says it's caused by mipmapping but this is due to anisotropic filtering. Anisotropic filtering improves textures displayed at an angle and the textures at the horizon are at the biggest angle so the effect is anisotropic filtering's fault.
>However, if you turn on MIP (all the way up) first, save the settings, and then turn Anisotropic filtering (all the way up) and save the settings again, the issue is not present
I would like to comment that this is not a duplicate as the other post is says it's caused by mipmapping but this is due to anisotropic filtering. Anisotropic filtering improves textures displayed at an angle and the textures at the horizon are at the biggest angle so the effect is anisotropic filtering's fault.