In this tutorial we will be using After Effect’s built in tracker to simulate a 3D environment full of people. To better sell the effect, the camera will be in constant motion. This tutorial requires nothing more than After Effects and a little creativity. Enjoy! 
Tutorial
Download Tutorial .mp4
File size: 42 MB
Additional Resources
- 5 Basic Ways To Populate Mass Groups Within After Effects
- RGTV Ep 25: Creating a Crowd Scene with Particular 2
- VCP: Search and Destroy