Hello Mike,

thanks for your help and advice, and examples. I already read your own 
thread where you placed entire planets on your giant-sized patio (which I 
like, actually) and posted there a similar question.

Do you know any way to create clouds like on the photo below with POV-Ray? 
And that blueish shine at the horizon?

True thanks for your link, my browser has it open already. I am checking 
them today and tomorrow.

Later,

Sven




"Mike Sobers" <sob### [at] mindspringcom> schrieb im Newsbeitrag 
news:web.44767236eed6fdf7613e60490@news.povray.org...
> "Sven Littkowski" <sve### [at] jamaica-focuscom> wrote:
>> Greetings.
>>
>> 1
>> I am looking for images like those about our earth, but with real clouds 
>> and
>> in high resolution. I need them as texture for a rendered earth. Who can
>> supply links?
>>
>> 2
>> What is the name of this kind of projection?
>>
>> Thanks,
>>
>> Sven
>
> Try here:  http://www.nasa.gov/vision/earth/features/blue_marble.html
>
> I think it's called a spherical projection, but there may be a more
> technical term for it.
>
> #declare earth_tex = texture {
> pigment {
> image_map {
>  jpeg "nasa_blue_marble.jpg"
>  map_type 1        // 0=planar, 1=spherical, 2=cylindrical, 5=torus
>  interpolate 2     // 0=none, 1=linear, 2=bilinear, 4=normalized distance
>  once           // for no repetitive tiling
> }
> }
>  normal {
>    bump_map {
>      jpeg "earthbump_usgs.jpg"
>      map_type 1        // 0=planar, 1=spherical, 2=cylindrical, 5=torus
>      interpolate 2     // 0=none, 1=linear, 2=bilinear, 4=normalized
> distance
>      once           // for no repetitive tiling
>      bump_size 2.5     // 0...3
>    }
>  }
>
> NASA has some really high resolution ones, but none that I found had 
> clouds.
> I used procedural clouds on mine.  You will have to play with the scaling
> to get it to look natural.
>
> #declare earthclouds_tex = texture {
> pigment {
>      bozo
>      turbulence 0.65
>      octaves 6
>      omega 0.7
>      lambda 2
>      color_map {
>          [0.0 0.1 color rgb <0.85, 0.85, 0.85>
>                   color rgb <0.75, 0.75, 0.75>]
>          [0.1 0.5 color rgb <0.75, 0.75, 0.75>
>                   color rgbt <1, 1, 1, 1>]
>          [0.5 1.0 color rgbt <1, 1, 1, 1>
>                   color rgbt <1, 1, 1, 1>]
>      }
>      scale <2, 0.5,2>
> }
>
> I've also attached the bump map from US Geological Survey.
>
>
> Mike
>

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