"RobF" <nomail@nomail> wrote in message 
news:web.4de47962d55febdd7ab7c0b80@news.povray.org...
> Hi Anthony,
>
> Since your planet is far away, you may also want to consider using the aoi
> pattern to fake an atmospheric glow. Although it doesn't give that 
> soft/hazy
> look, it renders very fast.  Here's a code snippet and an example of what 
> it
> looks like (with the USS Enterprise, of course! :-)
>
> #declare p_planet_atmosphere =
>      pigment {rgbt <0.5,0.5,0.5,0.5>}; // adjust transparancy component to
> change atmospheric translucency
>
> #declare p_planet_atmosphere_glow =
>    pigment {rgb <0.9,0.95,1>*1.8}; // atmospheric glow
>
> #declare p_planet_atmosphere =
> pigment {
>  aoi
>  pigment_map {
>  [0.5 p_planet_atmosphere_glow]
>  [0.7 p_planet_atmosphere]
>  }
> };
>
> #declare t_planet_atmosphere =
>      texture {pigment {p_planet_atmosphere}
>              finish {ambient 0}
>      }
>    union {
>      sphere {0,3   texture {T_Stone22  finish {phong 0 ambient 0 
> reflection 0}}
> }  // planet surface
>      sphere {0,3.0001 texture {t_planet_atmosphere}}
>   // planet atmosphere
>     }
>
> // need a bright light to make it glow
>
> ---
> Rob.
> Rob Fitzel
> www.fitzel.ca/dart
>
>
>

That background media looks amazing!  Is there any chance you could share 
that code snippet too?  I've been struggling getting a nice looking cloud 
like that.

Thanks!

Cheers Dre

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