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

pixels = W:1024 H:1024

x = from -0.5 to 0.5 W
y = from -0.5 to 0.5 H

u = x
v = y

a = 1.3
b = 1.4

[loop start:30
d = u*u + v*v
u = a*abs(u)/d - b
v = a*abs(v)/d - b
loop end]

r = 0
g = abs(u)
b = abs(v)
	


