These drastic distortions also meant that we had to install the projectors before being 100% sure that it would all work. I had to know how far to distort each quadrant, and only way to tell was with the projectors installed. When projecting from up to 18 feet away, a difference as little as the width of the cat whisker (literally) in any direction would have been plainly visible. Here is a view of the installation looking over the banister from the second floor down to the first.
