#https://www.shadertoy.com/view/Mds3W7

pixels = W:1024 H:1024

u = from 0 to 1 W
v = from 0 to 1 H

t = 514.08

tx = u*2 - t
ty = v - t

t2x = tx + 2
t2y = ty - 1

ycenter = iq_fbm2(tx, ty)*0.5
ycenter2= iq_fbm2(t2x, t2y)*0.5

diff = abs(v - ycenter)
c1 = 1.0 - mix(0.0,1.0,diff*20.0)
   
diff2 = abs(v - ycenter2)
c2 = 1.0 - mix(0.0,1.0,diff2*20.0)
   
c = max(c1,c2)

r = 0.6*c
g = 0.2*c2
b = c

