You're absolutely right. I was thinking in terms of a previous attempt by some people, using a planar camera array with no motion involved. In that case it was

You're absolutely right. I was thinking in terms of a previous attempt by some people, using a planar camera array with no motion involved. In that case it was impossible to reconstruct the lightfield satisfactorily. You only got a small pyramidal volume and a lot of ugly interpolations because of the small number of cameras. In this case however you can reconstruct the real deal at an arbitrary precision by increasing the scan time. If they can render it properly in real time, it will be amazing.