This has been done many times--in fact, not so long ago someone was 
using some rather advanced techniques with very nice results, but I 
couldn't find the post or remember who was doing it.  In any case, I was 
inspired last night to make a POV planet, and here it is.  I'm fond of 
the atmosphere and the water, but I should keep working on the texture 
for the landmasses.

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Preview of image 'blueplanet.jpg'

"Kirk Andrews" <kir### [at] tektonartcom> schrieb im Newsbeitrag 
news:4b964a07@news.povray.org...
> This has been done many times--in fact, not so long ago someone was
> using some rather advanced techniques with very nice results, but I
> couldn't find the post or remember who was doing it.  In any case, I was
> inspired last night to make a POV planet, and here it is.  I'm fond of
> the atmosphere and the water, but I should keep working on the texture
> for the landmasses.

Beatiful, as always ;-)

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Kirk Andrews wrote:
> This has been done many times--in fact, not so long ago someone was 
> using some rather advanced techniques with very nice results, but I 
> couldn't find the post or remember who was doing it.  In any case, I was 
> inspired last night to make a POV planet, and here it is.  I'm fond of 
> the atmosphere and the water, but I should keep working on the texture 
> for the landmasses.
> 
> ------------------------------------------------------------------------
> 

Wow,,, nice

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Thanks for the nice comments.  Here's another, larger render.  This one 
I rendered with beta 35, and the media seems to have rendered quite 
substantially different.  I had to do some post-processing to make up 
for it.

In case you were curious, the land forms are an isosurface based on 
F_ridged; the ocean is a transparent sphere with colored fade statements 
in the interior.  I used two separate spheres with media--one for 
general atmosphere and another for clouds.

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"Kirk Andrews" <kir### [at] tektonartcom> schrieb im Newsbeitrag 
news:4b96ae73@news.povray.org...
> Thanks for the nice comments.  Here's another, larger render.  This one
> I rendered with beta 35, and the media seems to have rendered quite
> substantially different.  I had to do some post-processing to make up
> for it.

The dark side of the planet in this render features a few lights. Are these 
city-lights (intentionally placed) or stars from the background shining 
through or artifacts (from beta)?

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TC wrote:
> "Kirk Andrews" <kir### [at] tektonartcom> schrieb im Newsbeitrag 
> news:4b96ae73@news.povray.org...
>> Thanks for the nice comments.  Here's another, larger render.  This one
>> I rendered with beta 35, and the media seems to have rendered quite
>> substantially different.  I had to do some post-processing to make up
>> for it.
> 
> The dark side of the planet in this render features a few lights. Are these 
> city-lights (intentionally placed) or stars from the background shining 
> through or artifacts (from beta)?
> 
> 
> 
Ah yes, I forgot to mention that.  The render did show some artifacts on 
the landmasses on the dark side of the planet.  However, their placement 
seemed realistic enough to serve as city-lights, so I boosted their 
brightness and blurred them slightly in post-processing.

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On 09/03/2010 20:24, Kirk Andrews wrote:
> Thanks for the nice comments.  Here's another, larger render.  This one
> I rendered with beta 35, and the media seems to have rendered quite
> substantially different. I had to do some post-processing to make up for
> it.
>
> In case you were curious, the land forms are an isosurface based on
> F_ridged; the ocean is a transparent sphere with colored fade statements
> in the interior. I used two separate spheres with media--one for general
> atmosphere and another for clouds.

Any chance of posting the code?  This is something I have played with a 
few times but never got this good a result.

Rarius

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On Tue, 09 Mar 2010 22:24:03 +0200, Kirk Andrews  
<kir### [at] tektonartcom> wrote:

> Thanks for the nice comments.  Here's another, larger render.  This one
> I rendered with beta 35, and the media seems to have rendered quite
> substantially different.  I had to do some post-processing to make up
> for it.
>
I had to change a lot in my media statements when changing from 3.6 to 3.7  
beta, but it looked better in the end :)

-Nekar Xenos-

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On Wed, 10 Mar 2010 00:15:20 +0200, Kirk Andrews  
<kir### [at] tektonartcom> wrote:

> TC wrote:
>> "Kirk Andrews" <kir### [at] tektonartcom> schrieb im Newsbeitrag  
>> news:4b96ae73@news.povray.org...
>>> Thanks for the nice comments.  Here's another, larger render.  This one
>>> I rendered with beta 35, and the media seems to have rendered quite
>>> substantially different.  I had to do some post-processing to make up
>>> for it.
>>  The dark side of the planet in this render features a few lights. Are  
>> these city-lights (intentionally placed) or stars from the background  
>> shining through or artifacts (from beta)?
>>
> Ah yes, I forgot to mention that.  The render did show some artifacts on  
> the landmasses on the dark side of the planet.  However, their placement  
> seemed realistic enough to serve as city-lights, so I boosted their  
> brightness and blurred them slightly in post-processing.

You could also just put a smaller black sphere inside to stop anything  
 from shining through. Did you try playing around with the isosurface  
accuracy setting?

-Nekar Xenos-

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> You could also just put a smaller black sphere inside to stop anything 
> from shining through. Did you try playing around with the isosurface 
> accuracy setting?
> 
> -Nekar Xenos-

An inner sphere is a good idea which would probably fix it.  I did have 
to boost the accuracy setting 1000 fold already just to prevent the 
coastlines from showing up black, for some reason.

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