clipka wrote:
> SharkD schrieb:
>> #local Inc_Scale_Amount = Width;
>> #local Dec_Scale_Amount = sqrt(3) / vlength(Inc_Scale_Amount);
> 
> What is "Width"?
> 
> It should be a scalar, otherwise you'll be running into trouble, as 
> you'd need an anisotropic media density (i.e. different density 
> depending on the orientation of the traversing ray) for a proper job.

Good catch! Yes, "Width" is a scalar. However, even after fixing this 
the clouds don't look quite like the image on the website I linked to. 
The clouds are supposed to be dark underneath, but aren't when I render 
the scene.

light_source
{
	<+3000, +6000, -7000,> * Width
	rgb 2.0
	parallel
}

The location of the light source is well above the clouds. But, the 
light source is twice as bright. How might I modify the media to 
compensate? I suppose I could contain the clouds in a light group with a 
dimmer light source, but I'd rather avoid this since it affects things 
like shadows.

-Mike

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