Re: Computer Compositing

[T3D john bercovitz <bercov@xxxxxxxxxxx>]

john bercovitz wrote:
> An object's
> own associated or shall we say "internal" parallax is a function
> of its distance from the observer so I think if you change the
> distance of the object, some type of distortion must result.

Bill Stratemeyer wrote:
>  I just finished a test of modifying deviation only for 
> objects in a stereo pair. 
[...]
>  When viewing and comparing the 2 sets of stereo pairs the
> only difference appears to be the depth of the dolphin with no 
> distortion (Bulge or stretch) and the object size seems to be
> the same as in the unmodified pair.
[...]

Bill, I would expect distortion in the theoretical sense.  
Whether or not that distortion is observable would depend 
on a number of factors including the amount of distortion 
there and also observer-related variables such as object 
familiarity.

Can you describe your process in a little more detail?  That
way maybe we could try to judge the amount of distortion
present.  When you say 0" or .25" of deviation, what's that
referenced to?  That is, how much deviation do you have for 
infinity homologues and how much for the stereo window?

Thanks,
John B


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