P3D Re: Re Stereo Window Demo, LLL for DDD

[Larry Berlin <lberlin@xxxxxxxxx>]

Hi Abram,

Thanks for posting a copy of this message to me. I've been kind of busy
lately so haven't been reading as much.

The animations had been online for so long, I took them down with fairly
recent web updates. I suppose I could make another set with better
images. 

I can imagine that demonstrating the stereo window with a slide
projector is quite difficult! It's a constant element when editing
digital images on a computer. It's very easy to do and the animation was
made by placing each image in a separate window, and manually dragging
the windows smaller than the image so a scroll bar appeared. Then I made
screen captures as I slid the image within what was visible of the
window frame. Done on the desktop or in a graphics program, it's very
easy to observe the image moving through the window.

If I can find a better image to work with I might make another demo of
this feature since it's really a fundamental item. Actually it could be
dealt with in a lot more detail than the simple animations I had before.
I'll be happy to provide the origina animations to anyone requesting
copies. I do have copies here somewhere. They could be sent by email
attachment.

abram klooswyk wrote:
> 
> George Themelis:
> >For our next club meeting I am scheduled for a demonstration of
> >the stereo window.  I plan to cut open the top of an RBT mount
> >and shift the rails while the slide is sitting inside my
> >Brackett Dissolver stereo projector.
> 
> A similar demonstration has been given by Dalgoutte, in
> England,
> I believe in the 1950s.
> ..........
> 
> Peter Davis wrote (23 Feb 2000):
> >Somebody could make a very effective Web page showing the same
> >pair mounted with different windows.  Has anyone already done
> >something like this?  I'd love to see it.
> 
> Larry Berlin has (had?) animated gifs on his site (for
> cross-eyed and parallel viewing) in which one of the "chips"
> moves, changing the place of the window with respect to the
> scene.
> (I have downloaded this part of his site more than two years
> ago, but today I couldn't find a working link to the
> animations.
> http://3dzine.simplenet.com/features/pwindow.html   and
> http://3dzine.simplenet.com/features/xwindow.html
> I have saved xwindow1.gif and pwindow1.gif in Oct 1997)
> 
> The animation is a nice idea, however I believe that the shot
> chosen for it was not the best possible example, it shows a
> creek with grassy borders, probably nice in a viewer, but with
> the limited resolution of web images a shot with stronger 3D
> effects and coarser details would do better, in my opinion.
> Can you show another example, Larry?

The choice was somewhat random from images that were currently before
me. They had been taken with my $4 home built stereo rig using two
thrift store cameras clamped onto a bit of aluminum angle material. I
went out shooting water scenes to test and develop the skill of
triggering two cameras at once manually.

I eventually broke one of the cameras when opening the back lid, the
plastic hinge broke. Due to the low quality lenses, I didn't repair the
hinge, though a piece of black tape would work for a few minutes...

Thanks for the thought. If I cook up another example soon, I'll notify
the list of the new images.

Sincerely,
-- 
Larry Berlin

3D Webscapes
lberlin@xxxxxxxxx
http://3dzine.simplenet.com
*-) ---> :-) ---> 8-) ---> 8-O