Just made a screenshot from one of the videos, because one can see most from the glitches:

http://www.puppenheim.org/directX11.jpg

I guess that you don't need more preparation than you already needed for parallax mapping, the big disadvantage of parallax is that the edges didn't change, though.

http://www.puppenheim.org/
http://www.wuerfels-welt.de
Old Game Tutorial: http://www.puppenheim.org/MITutorial.zip
Free Game Editor: http://puppenheim.org/AlienalsWeihnachtsmann.zip
http://www.puppenheim.org/blender_starting_main_settings.txt