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

pixels = W:1024 H:1024

x = from -5 to 5 W
y = from -5 to 5 H

s = 1.0

k = cos(abs(x) * s * PI*2)
k = k + cos(abs(x*cos(PI/3) + y*sin(PI/3)) * s * PI*2)
k = k + cos(abs(x*cos(PI*2/3) + y*sin(PI*2/3)) * s * PI*2)

r = abs(k)
g = abs(k)
b = k
