How do you deal with the sun in LightSys? It takes two parameters: color 
temperature and lumens. There's a shortcut for the sun's color 
temperature, but not for the sun's lumens. Further, unless you are 
modeling at astronomical scales, you're going to have to adjust the 
lumens for distance.

According to Answers.com (and assuming they're correct) the sun's power 
in lumens is 3.75x10^28. Let's say I am modeling the sun at 1/100 scale. 
How would I calculate the new value for lumens?


-- 
http://isometricland.com

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