P3D 3-D Litmus test

["KENNETH LUKER" <kluker@xxxxxxxxxxxxxxxxxxxxxxx>]

> I'm surprised that none of
> the discussions of the effect(s) mention "airspace." ... If the two-eyed view
> reveals airspace that is not discernible in the one-eyed view,
> it passes my 3D litmus test....  Images with "continuous depth", like a large field of
> smoothly cut grass, train tracks, or long corridors make it
> very difficult or impossible to perceive the airspace under
> normal viewing circumstances. ...said  Paul Talbot.

I think there is still airspace in continuous depth photos--it's just 
that it lies above the plane of the smoothly cut grass or the floor 
of the corridor.  It is perceptible as a distinct volume of airspace 
into which one could walk.  But there must be detail in the grass, or 
in the floor, to make the airspace feelable.   I love such spaces.

Ken Luker
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Kenneth Luker
Marriott Library Systems and Technical Services
KLUKER@xxxxxxxxxxxxxxxx


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