TerrainFourLayerDiffuseFast

Author: Eric Haines (Eric5h5) - Based on Aras's shader and the built-in Diffuse Fast shader; any mistakes are mine...though it does work (but only on ATI cards, not nVidia apparently, or at least not the 7300 or 8600).

Description
This shader is a combination of the TerrainFourLayer shader and the built-in Diffuse Fast shader, so it can use fog and light cookies. According to the graphics emulation, it needs an R9500 class card or newer to work.

Usage
Place this shader somewhere in your Assets folder hierarchy, create a material which uses it and apply it to the relevant objects.