P3D Re: Anaglyph filter material

[Allan Woods <allanwx@xxxxxxxxxx>]

>>I wonder if one (or more) of the subscribers to this list have tried
>>(found) a Kodak Wratten filter combination?
>
>I use a Wratten 25 (red), with a 44a (cyan). These are so-called "Two color
>separation filters." An even more exact solution would be to use dichroics,
>as in the old Technicolor two-strip cameras.
>
>
As I understand it, the main things at work here are (should be):

The two colours used in the anaglyph image should be complementary.
The coloured filters used to view the image should match the colours
used to produce the image.

So, the coice of filters to use in viewing a CRT would depend on the
colours being generated by the display tube.

Likewise, filters should match inks/dyes used in preparing a paper
image.

The filters should completely occlude the complementary colour in
order to accomplish the desired result - i.e. present apparently
different images to each eye from viewing the composited image.

n'cest pas?

So, the "ideal" colours for filtres are the ones which meet those
criteria. (?)

allanwx@xxxxxxxxxx



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