Re: Those who cannot see or enjoy stereo

[P3D Michael Kersenbrock <michaelk@xxxxxxxxxxxxxxxxxx>]

>   I assume people without stereo vision still
> see stereo effects due to motion parallax. Even
> we 3d-ers see it in 2d movies. The Arnie movie
> True Lies (?) where they pan the camera around the
> Harrier jumpjet hovering beside the crane is very
> effective even without 3d images on the screen.

This brings up another aspect of why 3D might not work
in the current-day movie business.  At least not in
a widespread manner.

In movies with "Arnie" scenes (or worse), the folk who
hose down the theatre once a day to clean out the food
droppings, may have to do it between each showing to
clean up... uh.... <horrible things I won't mention>.

Those scenes are bad enough in 2D.  :-)

Unless, of course, a law is passed that 3D is only allowed
on Doris Day type movies. 

> >similar reactions.  Clearly, there are no misalignments in my
> >projected images.  Then why are some people reporting such
> >reactions?

Another distinction between "reality" and the 3D projected
images is that in real life things are a bit more continuous.
Slides, on the other hand, "jerks" one from one visual scenario
to another relatively suddenly (or from darkness to scenario
and back again).  This may wear on one's natural visual apparatus,
particularly for one who isn't practiced at it.

At NSA '97 (despite my being thought a nut-case) I voiced that I
thought that some of the slide-to-slide dissolves on the Brackett
projector didn't work for me because the adjacent slide images
didn't fit together (for lack of a better way to describe it).  Vast
majority were good/fine/nice.  Jon even did some image "dancing" 
between two images that worked very nice because the images were
"compatible" with each other.  However *some*, particularly with
disolve, did seem to "bug me".  I wasn't dying, but one of those 
momentary "huh?" sorts of feelings.

So maybe there is a visual reality boundary (VRB) source of 
headache.  :-)

Mike K.

P.S. - The last Cascade Stereoscopic Club's meeting had it's 
       projection done with a Brackett Disolver.  Kewl! 


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