Re: Computer Compositing

[T3D john bercovitz <bercov@xxxxxxxxxxx>]

> 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.

Ah, perhaps you could refresh my memory on vertical disparities?  
I can't seem to dredge up what it referred to and Jim C is very 
very busy until after Thanksgiving meaning we won't hear from him 
until next week.  8-(  Were vertical disparities something we'd 
see in a normal stereo pair?  I can't see how if vertical is 
defined as being parallel to the film plane and perpendicular to 
the motion of the slide bar's axis.

Thanks,
John B


------------------------------