#https://www.shadertoy.com/view/ltl3WH

pixels = W:1024 H:1024

x = from -10 to 10 W
y = from -10 to 10 H

t = 0.456
px = x - 0.5*sin(t*5)
py = y - 0.5*cos(t*11)

[LOOP Start: 10
w = px*px + py*py
px = abs(px)/w - t
py = abs(py)/w - t
LOOP END]

r = px
g = py
b = py - px
