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

pixels = W:1024 H:1024

x = from -1.2 to 1.2 W
y = from -1.2 to 1.2 H

angle = atan2(y, x)
len = length2(x, y)

t = 5

l1 =cos(angle*t) * 0.25
l2 = -cos(angle * 3.0 * t) * 0.25
l3 = -cos(angle * 15.0 * t) * 0.125
l4 = cos(angle * 7.0 * t) * 0.25
    
r = len + (l1 + l2 + l3 + l4) * 0.5
g = r
b = r
	


