We're much in agreement here, I prefer gray anaglyphs. Don't like the
distorted colors and increased ghosting of "color" analgyphs, but
ocasionally
they're better than the grayscale. Like you said, if the color saturation is
not too high and if there isn't a lot of red in it. It is unfortunate that
publications like Sports Illustrated insist on using the color anaglyphs
even where there is too much retinal rivalry and ghosting. Whenever I make
an anaglyph from a stereo image I try it both ways and 75% of the time I
prefer the gray anaglyph.

Harold

"Rune" <run### [at] inamecom> wrote in message
news:395bc162@news.povray.org...
> "Harold Baize" wrote:
> > I think you did the color separations just right, many people
> > have a strong opinion that all anaglyphs should be gray scale,
> > but often a "color" anaglyph works.
>
> The image in question has very much gray in it in the first place, so it
> works ok. However, with more colorful images it doesn't work if you don't
> convert to grayscale first.
>
> If you have a scene with a red sphere in it, it will appear bright to your
> one eye, and dark to your other eye. With a blue or cyan sphere it will be
> the other way around. You can imagine how a colorful scene may appear
> totally different with your two eyes... The most correct method always is
to
> convert to grayscale first, I think.
>
> Greetings,
>
> Rune

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