// Parametric in a kind of ornamental shape

parametric {
// (4) or maybe... ?? (can be very slow and inaccurate)
  function{ sin(v)*sin(u)*pow(cos(v), 3) },     // x-axis
  function{ cos(u)*pow(sin(v), 2) },            // y-axis
  function{ sin(v)*cos(u)*pow(cos(v), 3) }      // z-axis
  <0,0>, <5,5>
  contained_by { box { <-0.5,-1,-0.5>, <0.5,1,0.5> } }
 // max_gradient 2
  accuracy 0.01 // 0.001 default, lower slower but better
  precompute 10 x,y,z // precompute normally gives faster rendering (<=20) but longer parsing

  scale 1.5 rotate -90*x
  texture{ pigment{ color rgb<1,1,1> } 
            
         } 
  translate<0,0,0>
}