Re: Cardboard cutouts and backdrops...

[P3D Larry Berlin <lberlin@xxxxxxxxx>]

>Date: Fri, 29 Aug 1997
>From: P3D Gregory J. Wageman comments:
>
>>John R. elaborated:
>>........................
>>accommodation (focus) coupled with convergence in a manner consistent
>>with natural vision,
>
>Is this really a cue that one must "learn to decouple"?  The fact that
>a stereo slide is planar while disparity is preserved produces the effect,
>but the implication of "learning to decouple" these is that one couldn't
>succesfully view a stereo slide in a viewer until then.

*****  I think you missed the point. For some stereo viewing methods, it is
not at all necessary to decouple any characteristics. The benefit to stereo
viewing is that you *can* learn to decouple and it adds significantly more
to the experience. For freeviewing, a certain amount of decoupling,
specifically the above mentioned qualities, must be learned. Other qualities
discussed in this thread have nothing to do with freeviewing, but involve
decoupling other characteristics commonly tied together in normal sight.

Yes, decoupling this particular set of factors usually has to be learned.
It's decidedly different from normal vision.

Viewing a stereo slide in a viewer requires relatively little decoupling of
convergence and accomodation. Freeviewing the same slide set would require
decoupling vergence with accommodation to a much more significant degree. 

Larry Berlin

Email: lberlin@xxxxxxxxx
http://www.sonic.net/~lberlin/
http://3dzine.simplenet.com/


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