Keying Greenscreens in After Effects

In this course, you will learn how to properly composite footage using Adobe After Effects CC.

In this After Effects tutorial we'll learn how to key greenscreen or bluescreen footage in After Effects. Using greenscreens is a common practice in today's VFX workflow, so understanding how to get a good alpha from greenscreen footage is very important. We'll begin this tutorial by learning what a chroma key is and what we need to look out for while we shoot the greenscreen footage. From there, we begin keying a sample shot using the Keylight keyer. We'll then learn how to refine our matte and edge using the various built-in modifiers. Finally, we will composite our keyed footage over a background and learn about spill suppression and some compositing tricks to integrate our pieces of footage. We'll end the tutorial by learning a method of treating compressed or chroma subsampled footage to pull better keys. Software required: After Effects CS5 and up.

• Introduction 20mins
• Preparing Your Project File 12mins
• Tracking and Masking the Skateboard 44mins
• Keying, Stabilizing, and Animating Footage 33mins
• Building the Rear Wheels 23mins
• Adding the Exhaust Footage 43mins
• Building the Bottom of the Skateboard 47mins
• Replacing the Exhaust Port and Foot 28mins
• Applying Color Correction 26mins
• Creating the Subject's Shadow 19mins
• Adding a Shaky Cam Effect 18mins
• Conclusion 4mins