add_h.pov

#include "colors.inc"
#include "textures.inc"

background { color rgb 0 }

camera {
  up <0,1,0>
  right <1,0,0>
  location <0, 0, -25>
  look_at <0, 0, 0>
  rotate <0,-30,0>
}

#declare BOND_TX = texture {
  pigment { color rgb 0.35 }
	finish {
		ambient 0.25
		diffuse 0.7
		specular 0.5
		roughness 0.01
	}
}

#declare CARBON_TX = texture {
  pigment { color rgb 0.7 }
	finish {
		ambient 0.25
		diffuse 0.7
		specular 0.5
		roughness 0.01
	}
}

#declare H_TX = texture {
  pigment { color rgb <.8,1,.8> }
	finish {
		ambient 0.25
		diffuse 0.7
		specular 0.5
		roughness 0.01
	}
}

// The carbon atom
union {
  sphere {
    <0,0,0>, 4
    texture { CARBON_TX }
  }
  
  cylinder {
    <0,0,0>, <0,-30,0>, 1
    texture { BOND_TX }
  }
  
  // No translation
}

// H atom 1
union {
  sphere {
    <0,0,-10>, 2
    texture { H_TX }
  }
  
  cylinder {
    <0,0,0>, <0,0,-10>, 1
    texture { BOND_TX }
  }
  
  rotate <20,0,0> // Elevation
}
  
// H atom 2
union {
  sphere {
    <0,0,-10>, 2
    texture { H_TX }
  }
  
  cylinder {
    <0,0,0>, <0,0,-10>, 1
    texture { BOND_TX }
  }
  
  rotate <20,0,0> // Elevation
  rotate <0,-120,0>
}

// H atom 3
union {
  sphere {
    <0,0,-10>, 2
    texture { H_TX }
  }
  
  cylinder {
    <0,0,0>, <0,0,-10>, 1
    texture { BOND_TX }
  }
  
  rotate <20,0,0> // Elevation
  rotate <0,120,0>
}

light_source {
  <20,10,-20>
  color White
}