Am 27.02.2013 20:05, schrieb Ryan Budney:

> light_source
> {
>   <-5, -2, 1 >
>   color White
>   area_light <0.6,0,0>,<0,0.6,0>,16,16
> }

When using area lights, /always/ make them adaptive. Size should be 
2^N+1 for that, so for example:

   area_light <0.6,0,0>,<0,0.6,0>,17,17
   adaptive 1

I usually also use "circular orient".

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