// Weinglas mit Brechung und Photon-Tracing
// ----------------------------------------------------------------------
#version 3.5;                          
#include "textures.inc"
background {color rgb <0.3, 0.3, 0.3>} 
// ----------------------------------------------------------------------
// Photonen
global_settings {
   photons {
     count 50000
     autostop 0
     jitter .4
   }
 }
// ----------------------------------------------------------------------
// Kamera
camera { location <20, 30, -40>  look_at <0, 4.5, 0>  angle 20    }
// ----------------------------------------------------------------------
// Lichtquellen
light_source { <-10, 100, -10> color rgb <1,1,1> area_light  <2, 0, 0> <0, 0, 2>  4, 4  
                                                 adaptive 2  jitter  circular
                 photons {refraction on reflection on}                                   }
light_source { <100, 100, -100> color rgb <1,1,1> area_light  <2, 0, 0> <0, 0, 2>  4, 4  
                                                 adaptive 2  jitter circular 
                 photons {refraction on reflection on}                                   }
// ----------------------------------------------------------------------
// Geometrische Objekte
//---------------------
//Grundebene
object{  plane { y, 0  texture {
    pigment { checker color rgb <0.4, 0.4, 0.4>, color rgb <0.8, 0.8, 0.8> scale 5 }  }   
    finish { ambient 0.1  diffuse 0.4  reflection 0.6 }  
    }  }    
//---------------------      
// Glas (Rotationskörper)
object{
  sor {
    8,
    <0.0,  -0.5>,
    <3.0,   0.0>,
    <1.0,   0.2>,
    <0.5,   0.4>,
    <0.5,   4.0>,
    <1.0,   5.0>,
    <3.0,  10.0>,
    <1.0,  11.0>
 open
  material { M_NB_Glass  }
translate <0,0,0>
 }  
   photons {
     target 0.4
     refraction on
     reflection on
   }
}