Onrush Materials - Forest

Re-renders some forest materials from Onrush. Up to eight material types were blended together in the ground shader.
(Games are a collaborative medium and consequently there is a good deal of re-use of elements (gravel, stones, twigs, etc) that should be credited to the talented team of environment artists at Codemasters Evo, namely Andrew Fletcher, Lewis Kennedy, Hannah MacDonald, Paul Butler, Amrish Wadekar, Dean McKweon, Adam Biddulph, Chris Edwards, David Trinder, Lucy Lowe and Richard Heaseman.)