Sorry, it was late and I had to get up early so I didn't have time to give you a good example. This is a detail of a render I'm working on called "Storm Surge". There is no bump in my material! The terrain carries the weight as far as close-up detail. This is a much better and more realistic way to go for terrains that are close to the camera. If you'll notice, the grass shadows follow the contour of the dune ripples, something no bump map can do.