// Persistence Of Vision raytracer version 3.1g isosurface patch with HyperFun
// sample file.
// This image contains an example of 'isosurface'.
 
global_settings { assumed_gamma 2.2 } 
                               
#include "colors.inc"
#include "textures.inc" 
#include "shapes.inc"
#include "glass.inc"
#include "woods.inc"
#include "whiteash.map"

camera {
   up<0,1,0>
   right<-1.33,0,0>
   location <-27, 5, 27>
   direction <0, 0,  1.0>
   look_at <0,-15,-5>
}

light_source {<-50,50,50>  color White  }
light_source {<0,60,0>  color Pink  }
light_source {<40,50,30>  color White  } 
light_source {<20,-40,-10>  color MediumSlateBlue  }  
light_source {<-20,-40,-30>  color Silver  }
background {color DarkSlateGray}

 #declare T11 = texture { T_Yellow_Glass      }
 
 plane { y, -50 
 
    texture{
        pigment {
            P_WoodGrain1A
            color_map { M_Wood1A }
            rotate x*85
            } 
         }    
   finish { ambient 0.45 }
}    

plane { z, -50 
 
    texture{
        pigment {
           P_WoodGrain10A
            color_map { M_Wood8A }
            rotate x*85
            }
        }    
   finish { ambient 0.45 }
}
  
plane { x, 50 
 
    texture{
        pigment {
            P_WoodGrain10B
            color_map {M_Wood3A  }
            rotate x*85
            }
        }    
   finish { ambient 0.45 }
}  

sky_sphere {
    pigment {
        gradient y
        color_map {[0, 1  color Gray20 color Gray80]}
    rotate x*30
    }
} 


isosurface{
     function {"HyperFun", library "hyperfun","HF_program=tora.hf, HF_object=tora, x=1, y=2, z=3", <0,0,0,0>}
     bounded_by{ box {<-23, -23, -23>, <23, 23, 23>}}   
     accuracy 0.05
     sign -1
     eval
     
     texture{T11
        
        finish {
                diffuse 1
                phong 0
                phong_size 0
                reflection 0
        } 
        
     }
     interior{I_Glass}
        translate <-2.5,  -6, 0>

}