input mp-solid

%2"
figureespace(-10u,-10u,10u,10u);
Initialisation(2000,20,-10,25);
arcenciel:=true;
incolor:=0.5[gris,white];
draw Sparam("(1.21**v*(sin(u)*cos(u)),1.21**v*(sin(u)**2*sin(v)),1.21**v*(sin(u)**2*cos(v)))",pi/24,11*pi/12,pi/24,0,10*pi/4,pi/24);
TraceAxesD(5,5,5);
finespace;
end