The following tutorial for creating a simple light writing effect in After Effects, is from VfxBro. Checkout VfxBro site for more great tutorials.
Creating Animated Light Streaks in After Effects
December 30, 2011 By Leave a Comment
From VFXbro: Learn how to make make a light writing effect using after effects as seen in the Tiffany Alvord and Luke Connard music video Back Home.