I thought this was an amazing video demonstration of 3D Projection Mapping being used as a backdrop during a live show presentation.
This process works by projecting imagery onto a multidimensional light colored plane. The light colored plane is first replicated in 3D software to match its contours.
Here is a another cool example of this technology produced by www.easyweb.fr .
This is the wikipedia explanation to this process : http://en.wikipedia.org/wiki/3D_projection
Update:
How To Page: Project On 3DGeometry
More samples can be found here and here
