#https://www.shadertoy.com/view/XsfBW4

pixels = W:1024 H:1024

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

t = 5.125

x = x + 0.1*sin(t)*sin(y*12)
y = y + 0.1*cos(t)*sin(x*15)

d = abs(0.8 - length2(x, y))
a = atan2(y, x)

d = d + 0.2*sin(a*15)
a = a + sin(t/5)

r = 1 - abs(d*sin(a))
g = r
b = r
