#http://www.mathcurve.com/courbes3d/lissajous3d/lissajous3d.shtml

vertices = D1:360 D2:5

a = rand2(1, 10)
b = rand2(1, 10)
c = rand2(1, 10)

u = from 0 to (20*PI) D1
v = from 0 to (0.1) D2

x = a*sin(3*u)
y = b*sin(v*u)
z = c*sin((5*v - 3)*u)
