Hey thanks - you just sped my renders up *10
Now Using

global_settings
{
 ambient_light  color rgb <0.392160, 0.392160, 0.392160>
 assumed_gamma 1.800000
 adc_bailout 1/64
 max_trace_level 6
        photons {
                spacing 0.5  }
            //    count 5000000    }
                   }



      media {
   scattering { 1, rgb 0.03 extinction 0}
    // intervals 1
    // >   samples 5
   method 3
   }

"Alain" <ele### [at] netscapenet> wrote in message
news:446273d6$1@news.povray.org...
> Simon Dyer nous apporta ses lumieres en ce 09/05/2006 03:48:
> > I had a file that had a mesh using mesh2 imported from 3d Studio.
> >
> > All was rendering well, except I wanted to see where the light was
> > travelling, so wanted to add some mist.
> >
> > Implementing media and suddenly the entire picture is dark.
> >
> > Help?
> >
> > My objects use:
> > interior {ior 1.25 } photons {target 0.9 refraction on reflection on}}
> >
> > My global settings use:
> >
> > global_settings
> > {
> >  ambient_light  color rgb <1.392160, 1.392160, 1.392160>
> >  assumed_gamma 1.800000
> >            max_trace_level 6
> >         photons {
> >                 spacing 0.05
> >                 count 50000000    }
> > }
> >
> >
> > media {
> >   scattering { 1, rgb 0.03}
> >   intervals 5
> >   samples 5
> >   method 3
> > }
> >
> You use scattering media, that media scatters the light and reduce the
amount that goes trough. You
> can try adding extinction 0, this will prevent the media from casting
shadows.
>
> When you use method 3 (the default, don't need to specify), it's best and
faster to not mention
> intervals, or set it to 1 (default value). If you want to have more
samples, just increase the
> samples value accordingly. Set it to 25 in the present case. This will
enable your scene to render
> faster, in fact, samples 100 will probably be faster than samples 5
intervals 5.
>
> In the photons block, you use BOTH count and spacing. Use one or the
other, not both. When you use
> count, you don't need spacing. When you use spacing, you don't need count.
>
> -- 
> Alain
> -------------------------------------------------
> 42.7 percent of all statistics are made up on the spot.

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