#https://www.shadertoy.com/view/XsfXz7

pixels = W:1024 H:1024

x = from -4 to 4 W
y = from -4 to 4 H
ox = x
h = 3.0

[Loop Start: 24
x = y*x*(1 - x)
d = abs(x- ox)
h = if(d < h, d, h)
Loop End]

h=20.0*clamp(h,0.0,0.05)
h = 1.0-h
h=h*h

r = h
g = h
b = h
