#https://www.shadertoy.com/view/4tXGW4

pixels = W:512 H:512

x = from -512 to 512 W
y = from -512 to 512 H

t = 0.05

ux = abs(atan2(x, y))*100
uy = log(length2(x,y))*100

i = 0.7
kx = fract(abs(ux)*0.01 + fract(i) + cos(uy*t+i*8.0)) - 0.5
ky = fract(abs(uy)*0.01 + fract(i*8) + cos(ux*t+i*8.0)) - 0.5
k = length2(kx, ky)

o = pow(k* 1.66, 2.0)

r = o
g = o
b = o
