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LinkedIn Learning

VFX Techniques: Crowd Replication with After Effects

via LinkedIn Learning

Overview

Simulate a large crowd using live-action footage of a small group of people, 3D renders, and Photoshop artwork.

VFX Techniques introduces common yet critical visual effects techniques that are used in film and television shows on a regular basis. This installment shows how to simulate a large crowd by combining live-action footage of a small group of people, 3D renders, and Adobe Photoshop artwork—transforming an otherwise empty building into a rapt audience. Author Lee Lanier uses After Effects to set up image sequences, apply motion tracking to match the motion of the original camera, and key green-screen footage. Finally, you'll learn how to make all the elements cohesive with color correction and lighting techniques.

Syllabus

Introduction
  • Welcome
  • Using the exercise files
1. Getting Started
  • The breakdown of the final composition
  • Reviewing image sequences
  • Setting up the project in After Effects
2. Tracking and Integrating Renders
  • Removing camera jitter
  • Motion tracking CG renders
  • Integrating CG renders
  • Adding multiple trackers
  • Adding artwork and renders
  • Utilizing corner pin tracking
  • Looking closer at corner pin tracking
  • Creating light effects
3. Working with Greenscreen
  • Keying with Keylight
  • Motion tracking greenscreen
  • Applying tracks to multiple layers
  • Solving bad matte edges
  • Creating fake reflections and parallax
  • Utilizing prerendering and precomps
  • Rotoscoping greenscreen
  • Employing multiple keyers
  • Applying matte tools
  • Adding lens blur
  • Using Color Range and Matte Choker
4. Color Grading and Rendering
  • Balancing the saturation and brightness of elements
  • Changing clothing and hair color
  • Relighting in the composition
  • Finalizing the composite
  • Adding audio and rendering
  • Looking at the final scene
Conclusion
  • Next steps

Taught by

Lee Lanier

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