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

pixels = W:1024 H:1024

x = from -8 to 8 W
y = from -8 to 8 H

k = 0.04

grid = 	   step(abs(x), k*0.5)*0.8
grid = max(step(abs(y), k*0.5)*0.8, grid)
grid = max(step(fract(x), k*1.2)*0.2, grid)
grid = max(step(fract(y), k*1.2)*0.2, grid)

r = grid
b = r
g = r
	


