Re: Computer Compositing

[T3D Larry Berlin <lberlin@xxxxxxxxx>]

John Bercovitz writes:
>.........snip.............
>I need a refresher on what Jim C means by vertical disparities.  He or
>someone else discussed it on P3D a long time back and it made sense at
>the time but I don't remember it.  But I agree with you that if you
>have a rectilinear setup on a slidebar, there can't be any vertical
>disparity in the two resultant views.  

I completely agree there are vertical disparities involved in the sense of
depth and 3D when viewing real scenes. However, these vertical changes are
essentially equal to each eye or to a stereo camera in a given moment's
observation. The result is that a stereo image must have zero vertical
disparity in order to be properly visualized if for no other reason than
relative to the image, the eyes are in vertical alignment.

Larry Berlin


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