isosurface { //------------------------------------------------------------- function{ f_helix1( x,y,z, 6, // number of helixes, (1 = single helix, 2 = double helix etc.) 1*2*pi, // For number N of turns pro heigth of y = 1 unit, use N* 2*pi 0.082, // minor radius, 0.80, // major radius, 1.00, // shape parameter, 0.70, // cross section type, (0.0 to 1.0 = from square to rounded to circle // over 2.0 to 3.0 = rounded to diamond and concave diamond 0 // cross section rotation angle ) //----------------------------------------------- } contained_by {box {<-1,0,-1>,<1,1,1>}} max_gradient 1.5 texture{ pigment{ color rgb <0.9,0.73,0.35>*0.75} finish { specular 0.5 roughness 0.005 phong 1 phong_size 10 reflection {0.60 metallic } } } rotate<0,0,0> scale <1,1,1> translate< 0,0.00, 0> } // end of isosurface -------------------------------------------------------