Stretch and squash

[P3D <PgWhacker@xxxxxxx>]

>Stretch (viewing from too far away) can be used for effect.  As an
>example, you might have a giraffe with his head and neck coming through
>the window.  It might be fun to stretch his neck out for emphasis.
> 
>Squash (viewing from too close up) can also be used for effect.  You 
>might want to take an airplane nose on and squash it to make it look 
>funny.
> 
>Stretch and squash only affect the depth or third dimension; they have 
>no effect on the other two dimensions.
> 

  Can anyone fill in the details behind stretch and squash, or suggest a 
book that does.

  I've got a shelf creaking with stereo photography books, including 
Ferwerda's excellent tome.  I've read general explanations and understand 
the points in a general way, but I haven't found a detailed technical 
explanation.

Thanks,




Greg Kane
Denver

PgWhacker@xxxxxxx





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