Kirk Andrews nous apporta ses lumieres en ce 2008/03/19 17:28:

There is a problem with that media.
> 
> #if (MediaOk = on)
> sphere {0,500
>   hollow
>   pigment {rgbt 1}
>   interior {
>     media {    // atmospheric media sample
>       intervals 4
This should stay at 1. With sampling method 3 (default) lager values can cause 
artefacts. It's also much faster.

>       scattering { 1, rgb 0.01 }
>       samples 1, 10
Not enough samples, must be at least 3. The value after the comma is always 
ignored. This is beter:

samples 10
// samples 100 would be about as fast as your settings, for a beter quality.

>       confidence 0.9999
>       variance 1/1000
>       ratio 0.9
>       density {
>         planar
>         //poly_wave 1/4
>         scale 10
>         translate -5*y
>         turbulence .2
>       }
>     }
>   }
>   photons {collect off pass_through}
> }
> #end
> 
> 
The documentation text is about the former default of method 1. Greatly missleading.

-- 
Alain
-------------------------------------------------
You know you've been raytracing too long when you prefer bald romatic partners, 
because they're easier to model.
John VanSickle

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