P3D Re: Window violations vs. effects

["Greg Wageman" <gjw@xxxxxxxxxx>]

> From: Dr. George A. Themelis <fj834@xxxxxxxxxxxxxxxxxxxxx>

> There is such thing as a "window violation" that has to do with improper
> mounting.  I guess you could find window violations in 3d movies but I
> expect them to be less objectionable than window violations in a projected
> still picture.

Watching "Metalstorm" at the NSA electronic theater was an interesting
experience. From what I could tell, the film was shot with infinity points
converged, thus making the *entire* film a "moving window violation".  It
has the same effect as in projection of still image; when a person's torso
(for example) is cut off by the window, the stereo effect seems to "collapse"
back to the window edge.  Not the most pleasant way to view a film.

(I'm pretty sure it was the film and not the projectors, as they had been
used shortly before to show properly-windowed video and were not re-
converged for "Metalstorm").


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