/*  Re: Dragonfly revisited in p.b.i
For those who may wish to play with it, this is simplified extract of
my
source to show the problem with wing-to-body join in posted image.
For DOS versions of Pov 3.1g and MegaPov 0.4

Alf

Alf### [at] compuservecom
http://www.peake42.freeserve.co.uk/
http://ourworld.compuserve.com/homepages/Alf_Peake/
*/

global_settings { assumed_gamma 1 }
// camera{ location <0,2.5,0> look_at 0 } // Top view
camera{ location <0,3.5,-4> angle 20 look_at <0.5,0.5,0> }
light_source { <-10,36,0> 1 }
plane{ y,-1 pigment{ rgb 1 } }
#declare Filtr=1; // Sets filter value in rgbf
#declare Wing = // Dummy wing
box{ 0, 1 rotate -y*35 scale <0.8,0.02,2>
     translate <0.5,0.74,0> pigment{ blue 1 } }

merge{  // union is OK
  object{ Wing }
  blob{ threshold 0.5
       sphere{ 0, 2, 1}
       sphere{ <0.50, 2,0>, 1.5, -1 }
       sphere{ <0.2,-1.8,0>, 2.5, -1.5 }
       pigment{ rgbf <1,0,0,Filtr> }
       finish{ phong 1 phong_size 40 }
       scale <1,1,0.6>
  }
  rotate -z*15  // Play with this

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