sphere -0.6 1.5 0    0.5   1 0.1 1   1 1 1   -1   100   
   sphere 0 -1.5 0    0.3   0.2 1 0.8   1 1 1   -1   100   
   sphere 0.6 1.5 0    0.5   0.8 1 0.1   1 1 1   -1   100   
 triangle -0.6 1.5 0    0 -1.5 0    0.6 1.5 0    0.2 0.2 1   1 1 1   -1   100   
    light 0 0 0.2    1 1 1   1   
   camera 0 0 8    0 0 0    0 1 0    30   
    image 400   400