input mp-solid

figureespace(-10u,-10u,10u,10u);
Initialisation(500,10,20,100);
incolor:=0.75[jaune,white];
outcolor:=0.5[green,white];
draw Sparam("(u*cos(v)*sin(pi/6),u*sin(v)*sin(pi/6),u*cos(pi/6))",-2,-0.1,0.2,-2.6,2.6,0.2);
finespace;
end