Virtual Production vs Traditional Green Screen: What’s the Difference?

Traditional Green Screen: Tried and Trusted
Green screen (also known as chroma keying) is one of the most established visual effects tools in the industry. The subject is filmed in front of a green backdrop, and the background is replaced in post-production with whatever environment the scene calls for, whether that’s a city skyline, a spaceship, or a rolling countryside. Green screen is a flexible, cost-effective method that’s well suited to commercials, interviews, and smaller narrative projects. However, it does come with some challenges:- Actors often perform without real context or reference points
- Lighting must be extremely well controlled to avoid green spill
- Backgrounds can only be judged after post-production is complete
Virtual Production with LED Volumes: A New Era
Virtual production, often using LED volume walls, is a more recent technique that allows digital environments to be displayed live on-set in real-time. This means actors perform in front of a huge LED screen that shows the actual background, whether it’s a 3D landscape, interior, or animated scene. The benefits are:- Real-time environments: Everyone, from actors to DOPs, can see and react to the world around them
- In-camera VFX: Many effects are captured live, reducing time in post
- Natural lighting: LED walls can provide realistic reflections and ambient light
- Faster decision-making: Directors can adjust the virtual environment instantly on set