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

pixels = W:1024 H:1024

x = from -1 to 1 W
y = from 1 to -1 H

s = 10
n = iq_fbm2(s*x, s*y)*2.5
				
k = mix(1.0, 0.0, n + y/0.4434)
r = k
g = k*k*k*0.8
b =  k*k*k*k*k*0.6
