FlaPovFan wrote:
> sky_sphere {
>   pigment {
>   bumps    scale 2
>    // gradient y
>     color_map {
>       [0.0 color rgb<0.8, 1.0, 1.0>*.5]
>         [.6 color rgb<0.0, 0.5, 1.0>*.85]
>       [1.0 color rgb<0.0, 0.5, 1.0>*.85]
>     }
>   }

  Regardless of what the documentation mistakenly implies, sky_sphere is
*not* intended to be used for cloud textures. It just doesn't look good
(because it's physically completely incorrect; the camera is not at the
center of the Earth).

  Just use sky_sphere for a color gradient from light blue (at the
horizon) to dark blue (at the zenith).

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