isosurface { //------------------------------------------------------------- function { f_rounded_box(x,y,z,0,1,1,1 ) - f_superellipsoid( x,y,z, 1.0, 0.45)// exponents east-west, north-south } contained_by {box {<-1,-1,-1>*1,<1,1,1>*1}} threshold 0.00 max_gradient 5 texture{ pigment{ color rgb <0.3,0.15,1.00>} // normal { bumps 0.15 scale 0.015} finish { specular 0.2 phong 0.7 reflection 0.1} } rotate<-20,50,0> scale 1.00 translate< 0,1.1,0> } // end of isosurface -------------------------------------------------------