But it can also be done by parallax oclussion mapping.
Either of those would make it look a lot better.
On that picture, the stone-floor in the middle-bottom just looks so flat. Like it's just a normal map.
Hmm.. yeah hehe, that looks a bit weird. But it's not catastrophic. It blends in kinda OK. The stone-floor however, waaah catastrophic!
People bang on about crysis,look at the floor in both these pics and tell me there is a big difference....i think not
http://s1225.photobucket.com/albums/ee394/St-frantic1975/?action=view¤t=TEXTURE.jpg
Click on the pic again to enlarge-i've high-lighted both examples....both look the same to me.