2008

In this case, an overlay is used to simply hide data information from other
master scenes. Another use of overlays is to avoid circular XRefs. For example,
picture four artists working on a scene of a city block. Two of them are working
on individual buildings, one is working on a sky bridge that connects the two
buildings, and the fourth artist is setting up the cameras and the lights. The
graph of externally referenced scenes might look like this:
External References (XRefs) | 6759