[photo-3d] Re want to learn about stereograms

[Peter Homer <P.J.Homer@xxxxxxxxxxxxx>]

 Ron Beck wrote

>
>I learned how to cross-eye view by staring down at a tile floor and
>merging the tiles.  The floor was a blue & white checkerboard styled
>floor and I would concentrate on crossing my eyes and merging two of the
>white tiles until I could clearly see the tiles.  You can tell that
>you've achieved the proper viewing cross because the floor seems to move
>a bit when you move your head and the tiles appear smaller than they
>actually are.  In fact, I could perform what I call a "two-tier" merge.
>I would cross my eyes a bit and merge the tiles and then cross them even
>more and merge the tiles again.

This is very like memories I have of staring at the bathroom floor as a child.
At the time I had not heard about "Free Viewing" and the only stereo I
would have heard of would be my parents talking about the 3d films of the
50's. When I first heard about parallel free viewing I could not do it
following the instructions at first but when I mastered it I realised I had
always been able to do it,and had noticed the "Wallpaper Effect" described
by Brewster myself long before reading about it. In my case I believe I was
parallel rather than cross viewing because I mastered that as an adult and
found it much more difficult at first. P.J.Homer