Sucess!! 3 Texture Per Vertex Painting

 Chris has been working on figuring out how to create a 3rd layer using the per vertex painting method.  He finally figured it out and it looks fantastic.  Sadly we can only paint the third texture on top of the second in this case (Hay can only be painted on top of mud) but still its looks great. He also got the height map to work.  

 From this:

To this:

Looks Fantastic