This post is part of a series called Keying and Rotoscoping.
This effect deals with retiming two halves of a tricky shot so that dirt charges can be composited in with a realistic tempo. We'll then move on to precomposing the dirt on top and masking out a hole to make it appear that you're jumping into it.
About Wren Weichman
I'm a VFX compositor currently living in LA making videos for youtube. I graduated college in 2011 with a degree in Mechanical Engineering from the University of Portland. Hit me up on Twitter!+ Expand Bio- Collapse Bio
Suggested Tuts+ Course
Visual Effects Compositing in Adobe After Effects$15