"Bruno Cabasson" <bru### [at] alcatelaleniaspacefr> wrote in message 
news:web.4669641f43579e8de8ba46670@news.povray.org...
> the colors I get are OK and quite realistic: the blue of the sky is
> obtained by Rayleigh scattering and a density function for the atmosphere,

i'm curious .... what color blue are you using? not pure blue? i'm playing 
with a tweeked skyblue from kolors.inc

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