#https://www.shadertoy.com/view/XsXSz2

pixels = W:1024 H:1024

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

t = 1.29

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

dis = dis*(1.0+ sin(angle*20.0) * 0.1)
color = sin(dis*PI*24.0 - t*23.3)

r = 0.1*color
g = r
b = color

