Visual Effects

5 Basic Ways To Populate Mass Groups Within After Effects


In this tutorial we look at 5 individual ways of duplicating crowds. These methods are:

  • Simple Masking (garbage matting)
  • Rotoscoping
  • Difference Matting
  • Chroma Keying
  • Camera Technique

The tutorial explains each of the methods, the pros and cons, and goes in depth to show how to create the final preview using the difference matting technique. The last part also contains some general compositing techniques that can be applied to each method.

Republished Tutorial

Every few weeks, we revisit some of our reader's favorite posts from throughout the history of the site. This tutorial was first published in July 2010.



Basic Masking

Download Tutorial .flv

File size 48MB

Chroma Keying

Download Tutorial .flv

File size 41MB


Download Tutorial .flv

File size 31MB

Difference Matte

Download Tutorial .flv

File size 241MB

Compositing and Camera Techniques

Download Tutorial .flv

File size 61MB

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