// QUALTIC2 - SPHERES by QUALTIC / A SPINDLE '02.06 // By Tsutomu HIGO E-mail: nj2t-hg@asahi-net.or.jp #version 3.1; global_settings { max_trace_level 12 assumed_gamma 2.2 } /* Quartic */ // a00 x^4 +a01 x^3 y +a02 x^3z +a03 x^3 + a04 x^2y^2 + // a05 x^2yz +a06 x^2 y +a07 x^2z^2 +a08 x^2z + a09 x^2 + // a10 xy^3 +a11 xy^2z +a12 xy^2 +a13 xyz^2 + a14 xyz + // a15 xy +a16 xz^3 +a17 xz^2 +a18 xz + a19 x + // a20 y^4 +a21 y^3z +a22 y^3 +a23 y^2z^2 + a24 y^2z + // a25 y^2 +a26 yz^3 +a27 yz^2 +a28 yz + a29 y + // a30 z^4 +a31 z^3 +a32 z^2 +a33 z + a34 = 0 // (x^2+A^2*y^2+A^2*z^2-1)*(A^2*x^2+y^2+A^2*z^2-1)=C #declare A=2.4; #declare B=-28; #declare C=-0.2; quartic { < A*A, 0.0, 0.0, 0.0,1+A*A*A*A, 0.0, 0.0,A*A+A*A*A*A,0.0,-1-A*A, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, A*A, 0.0, 0.0,A*A+A*A*A*A,0.0, -1-A*A, 0.0, 0.0, 0.0, 0.0, A*A*A*A+B, 0.0,-2*A*A, 0.0, 1-C > rotate <130, 30, 60> texture { pigment { color rgbt <0.2, 0.5, 1, 0.6> } finish { reflection 0.67 phong 1 phong_size 20 ambient 0.2 diffuse 0.8 } } no_shadow } camera { location <-8, 26, -10> angle 5 look_at <0.0, 0, 0.0> } light_source { <200, 30, -300> color rgb <1.5, 1, 1> }