I believe it.  Really seems very much like a stereopair.  I tried this out
with a few photos too using a paper with hole punched out and it obviously
depends on lighting from what I could tell, a dark low contrast picture
still looks 2D so it reasons a raytrace needs to be well lit also.  By that
I mean light/shadow.  Maybe not, but that's my observation of it.  Right
about the external things needing to be occluded as well.
Btw, you've been included in my will now Simon.  Just kidding!  (I don't
have a will)

Bob

Steve <sjl### [at] ndirectcouk> wrote in message
news:38389657.FDDB1E6B@ndirect.co.uk...
> I've just tried it, but I can't tell if it works or not.
>
> Simon de Vet wrote:
> >
> > 1) Make a tube with your hand.
> > 2) Close one eye.
> > 3) Look through the tube at your rendered image. You should not be able
> > to see any of your screen or the surrounding room.
> >
> > Voila! The image seems to pop out into amazing 3-d glory!
> >
> > I imagine this works since we usually depend on two eyes to judge depth.
> > With one eye closed we depend on other kinds of visual clues. By
> > blocking out everything but the image, the only visula clues we have
> > left come from the pic itself.
> >
> > This is really amazing. Try it!
> >
> > The only disadvantage is that to block out the screen border you have to
> > block out most of the image as well...
>
> --
> Cheers
> Steve              email mailto:sjl### [at] ndirectcouk
>
> %HAV-A-NICEDAY Error not enough coffee  0 pps.
>
> web http://www.ndirect.co.uk/~sjlen/
>
> or  http://start.at/zero-pps
>

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