// 3D non-CSG shape with curved surface created with a mesh of triangles bicubic_patch { type 1 // patch_type (0 or 1) // 0 = Bezier patch, just store the triangular vertices // 1 = Bezier patch, store all plane equations defined by // the triangulation of the patch into sub patches (faster, but needs more memory) flatness 0.1 // flatness_value from 0.0 to 1.0, // higher values are giving flatter, less smooth results! u_steps 4 // number of triangles to subdivide (1 to 5) v_steps 4 // number of triangles to subdivide (1 to 5) <0, 0, 2>,<1, 0, 0>,<2, 0, 0>,<3, 0, -2>, <0, 1, 0>,<1, 1, 0>,<2, 1, 0>,<3, 1, 0>, <0, 2, 0>,<1, 2, 0>,<2, 2, 0>,<3, 2, 0>, <0, 3, 2>,<1, 3, 0>,<2, 3, 0>,<3, 3, -2> texture { pigment{ color rgb< 0.75, 0.5, 1.0> } // light violet // normal { bumps 0.5 scale 0.05 } finish { phong 0.3} } // end of texture /* texture { pigment{ color rgb< 0.0, 0.5, 0.0> }// dark green // normal { bumps 0.5 scale 0.05 } finish { phong 0.1} } // end of texture */ scale <1,1,1> rotate< 0,90,0> translate<0,0,0> } // end of bicubic_patch ----------------------------------------------------------