This is a shader test in Unreal 3. It was SUPPOSED to look truly awful. Dead sea-life was the given inspiration. The movie shows different shader treatments of the same surface. At the end of the movie is a side-by- side comparison of the render-to-texture normal map, and one created from a heightfield map and the nvidia filter in photoshop: we were surprised that there wasn't much difference. The one on the right was the Nvidia filtered map.