It's a pretty simple to do, but it also depends on how your model is set up.
Does the camera need to be on the surface of a real sphere? or will a plane do?
(Unless you're going for extreme panoramas from high altitudes, a plane would
work.) Another thing to consider is this: do you need the sun placed accurately
or not? Perhaps if you could give us some clues as to what your process needs in
more detail we can provide a clear answer

By the way, someone has been working on an accurate model of the solar system,
so you could probably use those figures to create the planets, but you'll have
to ask Uncle Ken where it is, because I've lost that link.

Josh
Ammar wrote:

> Hello All
>
> I am currently working on a project to render skies using physically
> accurate or t least approximate colours and intensities. I have been advised
> to use POV-Ray simply because it is a very good ray tracing program. My
> knowledge of the language is very bad and I am struggling to use it.
> I have gathered all the equations to implement my model, but I am completely
> clueless as to how POV-Ray works. I would be very greatful if anyone could
> provide with a skeleton program that would setup the scene for me. That is,
> create the earth and sky spheres and postion the view on the surface of the
> earth looking at the sky.
>
> Then I can use that to change the colour of the sky based on equation I
> have.
>
> I would like to apologise for this, but my POV-Ray knowledge is very bad and
> I am starting to panic !!!
>
> Any help would be greatly appreciated.
>
> Please feel free to reply to me on the email address listed below.
>
> Thanks..
>
> Ammar
>
> a.a### [at] ueaacuk

--
Josh English
eng### [at] spiritonecom
"May your hopes, dreams, and plans not be destroyed by a few zeros."

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