[photo-3d] Fw: Kaleidoscopes & other optical visual effects

["John A. Rupkalvis" <stereoscope@xxxxxxxxxxxxx>]

> I am interested!  This subject deserves to be "on line"
> after all the unrelated film vs. digital discussions :)  One
> day I might have a Tutorial on Kaleidoscopic 3-D.  Keep
> on working Bruce!  The man is a genius! :)
>
> George
_____________________________________________________________

> John:  If this goes on line please keep me in the loop....Roger Ferragallo
_____________________________________________________________

Okay, okay.  Here is the message that I had sent "off line" to Bruce:

----- Original Message -----

> From: "John A. Rupkalvis" <stereoscope@xxxxxxxxxxxxx>
> To: <bsspringsteen@xxxxxxxxx
> Sent: Wednesday, April 11, 2001 10:18 AM
> Subject: Kaleidoscopes & other optical visual effects
>
>  Bruce  ~
>
>  Kaleidoscopes, infinity boxes, etc., have always been fascinating to me.
> Many years ago a flat (2-D) kaleidoscope image of mine on 16mm film won
> first place in a professional cinematography contest.  I had stirred water
> in a clear glass beaker, and then dropped drops of red, yellow, and blue
dye
> into the swirling water from off screen eye-droppers.  I shot this through
> the standard v-mirror setup, changing the angle of the mirrors during the
> shot.  I planned to replicate this in 3-D, but never had the time (or
money
> to buy the time).
>
> One time I built an infinity box (beamsplitter in front, mirror in back,
> xmas tree lights in between) and put large mirrors in the "V"
configuration
> in front.  The illusion was breathtaking.  Especially if you change the
> angle of the front and/or back reflectors while viewing (a VERY slight
> change sends galaxies of lights off into unexpected regions).
>
> My plan is to eventually (if I ever have the time and money) make a
> large-scale version of this and film or videotape it stereoscopically.
This
> could then serve as a background keyed into a sci-fi film or as a
> stereoscopic cyc on a stage behind a concert or whatever.
>
> Of course, the way to do it now, is on a computer.  A real kaleidoscope
can
> be emulated "perfectly" for a virtual kaleidoscope.  The program could be
> designed to copy the physical optical model accurately, and then modified
to
> permit "breaking through the glass" and viewing from positions and angles
> that would be impossible in the real world.  It could be pre-programmed
for
> all sorts of fantastic effects.
>
> JR



 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/