// Height Feild Tutorial - HFCentered

// some users may want to un-comment and adjust the following line to suit the brightness of their monitor
//global_settings {  assumed_gamma 2.6}

camera{location <0, 1.5, -2> look_at 0 translate <0,-0.2,0>}
light_source {<40, 40, -5> rgb 1} 

height_field {
  png "hf1.png"
  translate -0.5
  scale <2,1.5,2>
  texture{pigment{colour rgb <0,1,0>} finish{ambient 0.4}}
}

#declare CylPig = pigment{colour rgb <0,0,1>}
cylinder{ <-100,0,0> <100,0,0> 0.02 pigment{CylPig}}
cylinder{ <0,-100,0> <0,100,0> 0.02 pigment{CylPig}}
cylinder{ <0,0,-100> <0,0,100> 0.02 pigment{CylPig}}