//-------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------------
#include "meshmaker.inc"
//-------------------------------------------------------------------------------------------------
#macro p_Lathe( Spline )
  #local __S=function{spline{Spline}}
  Parametric(
    function(x,y){(__S(u).x * sin(v)/2)},
    function(x,y){u},
    function(x,y){(__S(u).x * cos(v)/2)},
    <0,0>, <1,2*pi>,
    20,20,""
  )
#end
//-------------------------------------------------------------------------------------------------
#declare Spline_1  =spline {
  cubic_spline
  -1 , < 1, 0, 0>,
  0  , < 1, 0, 0>,
  0.3, < 0.2, 0, 0>,
  0.7, < 0.2, 0, 0>,
  1.0, < 1, 0, 0>,
  2  , < 1, 0, 0>
}
//-------------------------------------------------------------------------------------------------
object{ 
   p_Lathe(Spline_1)
 //  no_shadow
   texture {            // inside texture
     uv_mapping
     pigment{ checker color rgb <0.5,0.0,0.1> rgb <1,1,1> scale <0.04,0.04,0.01>}
     finish { specular 0.5}
   } // 
   interior_texture{   // outside texture
     uv_mapping
     pigment{ checker color rgb <0.0,0,0.0> rgb <1,0.9,0.9> scale <0.04,0.04,1>}
     finish { phong 0.5 }
   } // 
   rotate<0,0,0>
   scale<1,1,1>*1.7
   translate< 0, 0, 0 >
} // end of object 
//---------------------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------------------