This is light streak effect using Particular 2.0. It uses high dynamic range and some cool trig functions to control position. The tutorial is part of the new Creative Cow Master Series DVD, Practical Particles, which demonstrates how to use Trapcode Particular in After Effects. The dvd should be on sale from www.creativecow.net around December 1, 2009...so look for it. It is jam packed with ready made royalty free projects using particles and also demonstrates a variety of usefull techniques and expressions.
