Le 2022-01-20 à 08:20, Kenneth a écrit :
> // This light is NOT the cause of the bright radiosity patches.
> light_source{<-2,4,-3 >*1000000 color srgb <0.5,0.5,0.6>*0.75 }
> 

WHY put that light so far away ? Why not use a much closer one, but with 
the parallel attribute ?

When an object or light is situated at a distance in the million units 
range, you can get unexpected behaviour.

Alternative light that will get the exact same result :
light_source{<-2,4,-3 >*1000 color srgb <0.5,0.5,0.6>*0.75 parallel}

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