%http://k3dsurf.s4.bizhat.com/k3dsurf-ftopic11.html input mp-solid %3'' figureespace(-10u,-10u,10u,10u); Initialisation(2000,20,-10,75); incolor=0.5[vert,white]; outcolor=0.5[jaune,white]; draw Sparam("(sin(2*u)*sin(2*v)*sin(5*v),sin(2*u)*sin(2*v)*cos(5*v),cos(2*u)*sin(2*v)+3*v-2.4)",0,47*pi/48,pi/48,0,23*pi/48,pi/48); finespace; end