SharkD escribió:
> I have some other lighting questions as well.
> 
> 1. Does CIE_Skylight.inc in LightsysIV use media to create the sky 
> color, or does it simply create a sky_sphere pigment?

   It is a mesh dome, where triangles are colored according to complex 
calculations. Read the readme_skylight.txt file: it's all explained there by 
the author, Philippe Debar.

> 2. Does it create a sun as well as a sky? Is the sun an object, or is it 
> just a brighter spot in the sky?


   No object, is just a spot in the dome mesh. AFAIK, this spot doesn't 
models the sun, but the brightness of the sky at that point. I usually put a 
light_source at the SolarPosition returned by the include.

> 2.Right now I am using the looks_like statement, to create a sun object 
> and light source. Unfortunately, the distances are so great that the sun 
> object is culled from the scene. Is there a way to place the object 
> nearer to the camera while still having the light source very far away? 
> I'm guessing that this would normally create problems such as shadows. 
> How do I get around them?

   Just take out the object from the looks_like and place it where you want, 
adding no_shadow to it.

--
Jaime

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