Shadow stereograms

[MythMath]

The last couple of days I've
been experimenting with a hunch...

I've long been intrigued with 3-D images, etc.
(blame that viewmaster I got in 1968 ;))...

http://en.wikipedia.org/wiki/Viewmaster

And, more recently, other variations on the
3-D theme such as the Magic Eye stuff, etc...

http://en.wikipedia.org/wiki/Stereogram


Oh yeah, the hunch:

What if I suspended a (slowly spinning)
3-dimensional object in front of a blank wall...

And, using two white light sources spaced a few feet apart,
cast two distinct shadows of said object onto said wall...?

Then, while seated under the suspended object
(with the light sources behind me), I observed the two
shadows while doing the standard eye convergence trick...

Could I create the illusion of an animated shadow stereogram...?

Answer: yes...
_______________________

Next, could the effect be enhanced by
using red and blue light sources...?

Yes...

If I wore red/blue '3-D glasses' while employing the
convergence viewing technique, could I cancel out the two
outer images while retaining the central combined image...?

Yes...
_____________________

Tonight I'm going to videotape the 'animated' shadows
and playback the images on a TV monitor...

I'm assuming that convergence viewing of
the TV image would yield similar results...
_____________________

Can scrying be done while converging the eyes...?

What would someone adept at scrying see
while viewing these videotaped images...?