Margus Ramst wrote in message <3A3### [at] peakeduee>...
>You see, there is no colour_map. All the colours are created by a
cyan-tinted
>scattering media; this media will appear red near the horizon because of
greater
>thickness and thus greater absorption of cyan/blue light.
>Actually there are two scattering medias, one has Raleigh scattering to
simulate
>air, and the other has Mies scattering to simulate air moisture at lower
>altitudes.

You might try replacing the cyan-tinted Rayleigh media with a true
wavelength-dependant Rayleigh media.  The unofficial patch for that is
available at http://www.geocities.com/rengaw03/povray.html.

--
Mark

"The derivative of sin(2x) is cos(2x)"  - Matt Giwer
"I never said that" - Matt Giwer
"I completely agree a flywheel can store a million times more energy if its
rotational velocity is measured in microradians instead of radians." - Matt
Giwer

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