P3D Analgyph

[Dylan The Hippy Wabbit <spacey@xxxxxxxxxxxxx>]

Hi All,

Ray Zone posted the following URL

http://www.ray3dzone.com/plychm1.html

Where he says:-

>With subtractive filtration in the anaglyph, it can be seen that the red
>lens sees the blue image and cancels out the red. The blue sees the red
>and cancels blue. Because a given color filter cancels out the same color
>in the photo or print it is called subtractive.

Can somebody explain that to me?  I can't see how a red filter can do
anything other than filter out the blue and transmit the red.  It *looks*
red because it doesn't transmit blue.  Orright, cyan.

Is it that most of Ray's artwork appears to be dark objects on a light
background, so that what you see is a complementary *shadow* of the
object?

Looking at the upper photo on
"http://home.earthlink.net/~r3dzone/aob.html" supports this hypothesis.
For those who can't go and look immediately, it's a photo of a man playing
some form of wind instrument.  He has a light face on a dark background.
The red image is to the left of it's partner.  Those parts which are
further away (logically, I don't have funny glasses to hand) are further
to the left than the foreground.  Which is what you'd expect of a properly
windowed image if the left eye sees the red image.

Is that description clear?

Have I misunderstood something?

Dave Spacey

_____________________________________________________________________________

Of Bill Gates, "In fact, he's Ernst Stavro Blofeld as played by Woody 
Allen." - Charles Shaar Murray


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