Very interesting!

3D7A4E47.5F24F970@taconic.net...
>
> The following images show the sun at elevations of 30, 15, 8, 6, 2 and 0
> degrees above the horizon with the only variable being the sun
> elevation. This is actually a bit of an exception since a noon sky and
> an evening sky often want specific components tweaked (e.g. light
> intensity, scattering color etc.) for the best effect. Actually, you
> have to do this in Terragen too.

Great!

>
> I'm pretty sure the sharpness of the "rays" in the last couple of images
> are sampling artifacts - I just haven't been able to locate the
> offending statement.

Uncreasing intervals won't help?

>
> While I'm happy so far with the results, my big question is
> incorporating clouds (media or pigment) and how they will be treated by
> the atmosphere.

Pigment on stacked planes?

>
> Render time for this series was approx. 15 minutes on a 90 MHz pentium.
> Not too slow, but not very fast either.

Don't you mean an 900Mhz?

>
> Any comment or criticism on this series of postage stamps is welcome.
>
> Abe


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