[Radiance-general] Multiple spherical glow sources?

[Mark Stock]

Lars,

Yes, I have that paper. I aim to include the atmospheric horizon 
glow in another step (mixfunc with the stars), and not even 
include the stars when their influence is negligible. The 
illumination from the stars will also only be effective when 
there is no moon (or a new moon).

Mark

On Tue, 15 Sep 2009, Lars O. Grobe wrote:

> Hi Mark,
>
> I have never looked into night skies, but from what I observed, they show 
> little angular variance, as finally you have starts everywhere over the dome. 
> Maybe I am ignoring something important here, but can't you assume a gradient 
> for the illuminance to be totally fine to light your scene? I would assume 
> that towards the horizon you get much higher levels due to "light pollution", 
> but I cannot imagine that for the illumination of an object under the sky 
> different "densities" of stars under different angles really show up.
>
> By the way, do you know the paper on night sky modeling by Henrik Wann Jensen 
> and others "A Physically-Based Night Sky Model"?
>
> Cheers Lars.
>
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