UPDATE

For the air, I am using now successlessly the code below: it is just dark.

cylinder // Air
{
 < 0.0, 0.0,  0.0 > < 0.0, 0.0, 5000.0 > 1500.0
 hollow
 interior
 {
  media
  {
   scattering
   {
    3
    < 0.5, 0.7, 1.0 >
    extinction 1.0
   }
  }
 }
}

Post a reply to this message