So, aside from being theoretically possible, is it for real?
Say I open Max, render a scene of a house, and it's z-buffer. Then I render a bush and a z-buffer for it. I'd like to open the house in ZB, load up the bush and place copies here and there around the house. One bush could block another; one could hide around the corner. If I put them on layers I could move this one out from behind the house to in front. Can do?