You can improve your antialiasing, assuming you're willing to use the well-supported OES_standard_derivatives extension (or WebGL 2). Instead of doing smoothste

You can improve your antialiasing, assuming you're willing to use the well-supported OES_standard_derivatives extension (or WebGL 2). Instead of doing smoothstep(0.0f, 0.01f, dist); with the constants picks sort of at random, instead do smoothstep(fwidth(dist), -fwidth(dist), dist);