I was trying to create some nice plasma effects and found that David had created some interesting fire effects using it (http://www.scirra.com/phpBB3/viewtopic.php?f=16&t=1601&p=11146&hilit=plasma+fire#p11146)
I tried recreating it but my plasma just fills the entire box, how do I stop it from rising infinitely high?
I've tried using plasma before but I've always had the same problem, but I just figured that that's how plasma works, until now of course.
<img src="http://img19.imageshack.us/img19/1056/plasmahelp.png">