electron microscope

I tryed to simulate particle under a (noisy) electron microscope. It’s not correct, because I should have used the normal-value instead of the z-value. Well, the next time…

http://tn3-2.deviantart.com/fs11/300W/i/2006/238/7/2/electron_microscope_by_panzi.png
Click the image to see a bigger version. You can download the .blend file there, too.