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* required from artist : only bumpmap/heightmap texture

results via shader : 

* http://img15.exs.cx/img15/4331/T3Main2004-08-1601-41-10-53.jpg
* http://www.blog.gen-art.net/index.php?p7
* without : http://www.blog.gen-art.net/images/3D/oringinal_floor.jpg
* with parallax map : http://www.blog.gen-art.net/images/3D/parallax_floor.jpg
* http://upload.wikimedia.org/wikipedia/en/8/8d/ParallaxMapping.jpg