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

pixels = W:1024 H:1024

x = from -1.1 to 1.1 W
y = from -1.1 to 1.1 H

a = x*x + y*y
b = abs(y) - a
c = (a - 1) * if(b > 0, y, x) * (b-0.23)*100000

r = c
g = c
b = c
	
