Somehow or other, I got the idea that Detailed Terrain had to checked before you could checked Bump Map Terrain. The map last night knocked down my frame rate to the forties at times. I then by accident left the bump map on with the Detailed Terrain off and that worked well pushing the frame rate back to 60.
Is Bump mapping an add-on to the Detail terrain or is Bump mapping terrain meant to stand alone i.e, and either or?
Is bump mapping more efficient in terms of video processing over the Detailed Terrain and Water choices?