AHA! in stereo viewing

[P3D Ronald W Doerfler <doerfler@xxxxxxxxxxxxxxxxx>]

A week or so ago, someone (sorry) asked for any examples
of views that in 2D would be misleading, but seen in 3D
would be revealed in true form.  They gave an example of
something very near appearing huge compared to farther
things, if depth clues were not apparent.

I offer one other example.  There are those "impossible
objects" that you see in books on optical illusions.
These are solid objects such as rectangular bars that
are bent into a triangle, but the sides rotate on the
way around so there is a confusing mismatch at some
point.  Etc.  These are sometimes shown in actual photos,
where someone fakes it by bending the sides in such
a way that from one angle, it looks like a solid object,
but there is a break somewhere where a side passes in front
of another (this is difficult to explain if you haven't seen
the photos).  This is a shot that when viewed in 3D would
immediately show it as a fake, even from the same perspective
point.

Ron Doerfler

>From the "Whaddya Know" program on NPR last Saturday:

    "If nothing else, the Unabomber proves that there IS life
     after grad school." 

8^)
  


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