After Effect Tutorial - Make An Amazing Motion Reactant Flame

Using just a few video elements of torch flames, we composite a burning hand by using a series of null objects and expressions to drive a time lagged displacement effect to simulate fire burning from a moving source. We use the Puppet tool for the distortion and throw on some tracked lighting effects and a displacement map for the Heat. This principle can be used to add realistic, fluid motion to any tracked object.

DEMO