This is my jedi lightsaber effect I did under Paint. I just used on pic I had to see if it would work.It did so this is what lightsabers will look like in my pics now.
nice effort ... i've tried that before also ... but i now just use directional lamps and lights, to make the lightsaber blades glow on their own - like the ones shown here ... http://www.mocpages.com/moc.php/85664 ... PS. ... look at the second pic there. :)