This is a demo put together by our friends at Project Holodeck and Sixense. There is a lot of talk as to why native VR is better than VR drivers like DDD, Vireio Perception, VorpX, etc. This is actually a good demonstration of how a customized VR game can do things that are either too difficult or too impractical after a non-VR game has been released. There are exceptions to the rule, of course!