I just wanted to share with others the neat little camera James Cameron has developed. The camera hooked up to the massive room known as the The Volume. In this predefined place, wherever he points that camera, he sees Pandora, on the fly. Almost like VR. If he looks up, he can see sky and floating mountains, in front of him trees, etc. This allows him to better see how the actors will look in the pandoran environment. This is one of his many innovations that will better CGI in movies from here onward.
An example can be found Here
The amp suit in the background is the easiest to see there, and it isn't actually there, but rendered in real time.
more examples here
and here 1 is the actors, the other the virtual cam generating in real time.