can someone point me towards a tutorial or some pointers on how to create a dust cloud that exapands and contracts as the camera spins around and through the cloud. basically recreating the effect found on the pontiac ad that was used in the promo material for Final Cut studio and Motion.
thanks for any pointers
G5 DP 2.0 (Power PC)
BMD Decklink Extreme 5.7.2
Don't know the particular clip in question, but for such a setup you'd use custom particles with very low opacity. Some sort of fractal puff created using Fractal Noise wit ha feathered edge mask. For the motion itself there are many ways how to go about it, but most likely you want to use a directional emitter with a wide spread. To slow down the particles use Air Resistance and for a swirling effect use Turbulence and Spin.