Hello i need make smooth brush likes this: I try to create it, i make circle and fill it, but result not successful: Can be seen circles.. this is not smooth like first example my example code: http://codepen.io/anon/pen/NPjwry Answer Try with a smaller globalAlpha and decrease the stepping (so you draw more circles) Updated codepen: http://codepen.io/gpetrioli/pen/ramqBz