Febrile Incantation

An audiovisual playground that renders a swirling "incantation" of geometric particles based on the expression you supplied.
Expression snippet used (interpreted): circle(x += cos(a = bezierTangent(0, d, sin(d)*9, sin(t+e), e*sin(t+e*5)) + r)*3, y += sin(a)*3, e*e*6)
Tip: resize the window for different compositions. Use darker/lighter backgrounds by editing CSS at the top.