How to create a "drag/attraction" effect in a painting?

OK, picture a solid color of bright red on a canvas. I'm thinking of oil paint, Let it dry a bit. Now mix some off white paint and add some varnish to thin the color so that as you drag the brush loaded with the white across the canvas it shows some of the red and gives an effect like when you open the freezer on a hot day. You have just discovered one of the great paint techniques. Sometimes painters use many coats of this glaze to get a certain look.