"Bruno Cabasson" <bru### [at] alcatelaleniaspacefr> wrote in message 
news:web.466d0ae043579e8de8ba46670@news.povray.org...
> Depending on the effect I want it may be from <0.1, 0.2, 1> to <0.4, 0.6, 
> 1>

ahhh .... fairly close to what I'm using.

> or so (normalized afterwards). I first tweak the atmosphere, more 
> sensitive
> for low elevations where the blue component is more scattered by the
> thickness of the media, leading to reddening sky), then I tweak the clouds
> density function and the light power.

sounds like we are going at this with simular methodology :-)

> Here is another try with 2 layers. But I am absolutely not satisfied:
> turbulence and thresholds not very good.

I'm using 3 layers and the sun (lightsource) is at the back of the scene 
that is to say I'm looking east at sunset. I have a rising moon and a 
shooting star that have a media componet to them .... I'm thinking about 
loosing the shooting star. anyway I'm feeling like I'm 70% there and at 
~6hrs render time progress is slow. As you mentioned earlier that allows 
only one many two tests per day (and I'm not the only one using this 
machine). Please .... do post the results if you come up with something you 
like .... I'll do the same.

Jim

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