On 3-12-2014 23:40, eticre wrote:
> Thanks!
> now I relax for 2000 or 3000 years, clouds and stars are my greatest difficulty.
> I'm also looking for an approach via isosurface instead of normal using ridged
> multifractal for terrain elevation, this is my best result

Isosurfaces is an excellent alternative to height_fields indeed although 
slower to render. I have not yet tried it for planets as I first wanted 
the textures to be right, but ridged multifractals at the core would be 
essential. I did a lot of experimentations with isosurface landscapes in 
the past and would need to reactivate my memory (and my documentation) a 
bit :-)

Thomas

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