Descriptions and Samples for the POV-Ray Raytracer by Friedrich A. Lohmüller

Egg

The construction of an egg shape.

Objects:    "box", "sphere".
Methods: "intersection", "difference", "declare" , "union"

//---------------------------------------------------------------------
#declare Egg_Tex =                            //  <-----1
   texture{pigment{color White}
           normal {bumps 0.4 scale 0.01}
           finish {ambient 0.15 diffuse 0.85 phong 0.1}}
//-------------------------------------------//  <-----2  -------------
#declare Egg_upperpart =                 //alternativ with "difference":
intersection{                      //difference{
 sphere{<0,0,0>,1 scale<1,1.75,1>} // sphere{<0,0,0>,1 scale<1,1.75,1>}
 box{<-1,0,-1>,<1,1.75,1>}         // box{<-1,-1.75,-1>,<1,0,1>}
 }//-------------------------------------------------------------------
#declare Egg_lowerpart =                
intersection{                      //difference{
 sphere{<0,0,0>,1 scale<1,1,1>}    // sphere{<0,0,0>,1 scale<1,1,1>}
 box{<-1,-1,-1>,<1,0,1>}           // box{<-1,0,-1>,<1,1,1>}
 }//-------------------------------------------------------------------
#declare Egg =
union{ object{Egg_upperpart}
       object{Egg_lowerpart}
       texture{Egg_Tex}
 }//-------------------------------------------------------------------
object{ Egg_upperpart translate<-1.1,1.1,0>        //  <----3
        texture{Egg_Tex}}
object{ Egg_lowerpart translate<-1.1,0.9,0>
        texture{Egg_Tex}}
object{ Egg       translate< 1.1,1.0,0>}
//------------------------------------------------------------ end ----