The master is now re-illuminated with laser light.
Remember that each of the separate images were recorded the same distance
away from the master and kept centered
by the rendering geometery.
When the master plays the images back they are
simultaneuosly projected to exactly the same
location except that each is angularlly separated from the next.
Another hologram of these overlapping images can be recorded using the master
as the object so upon playback the master sends all the images back
to the same location and simultaneously records all of the object's different
perspective views.
