Apophysis

Apophysis is an animation program that animates and renders flames. Apophysis could be used for a number of things from cool screenshots, to media player synthesizers. The key features are the ability for it to make a random flame and for you to take it, add changes to it and put them in layers. You can input certain scripts and edit them so that your flame will move how fast you want and in the way you want. The software works using scripts, for animation, and math for the movement of your flame. I would use this just for fun when I feel creative or to put in videos, or other animations I have.