Virtual Production and LED Volumes: What Actually Works
Filming live action in front of large LED walls that display real-time 3D environments, known as in-camera visual effects.
Imogen Clarke
What is at stake
Virtual production captures final pixels on set and gives actors real surroundings, but it requires tight coordination between 3D and camera teams.
The playbook
- Finish environments before the shoot
- Calibrate LED colors with the camera
- Keep LED walls out of sharp focus
- Rehearse camera moves
- Plan lighting that matches the environment
Where it goes wrong
Avoid:
- Unfinished environments on set
- Color mismatches between LEDs and foreground
- Focusing on the wall
- Untested tracking systems
The numbers behind it
| Measure | Figure |
|---|---|
| In-camera VFX | backgrounds are captured directly by the camera |
| nDisplay | Unreal Engine's system for rendering across multiple displays |
| Camera tracking | updates the perspective of the background as the camera moves |
| Moiré | focusing on LED panels can create interference patterns |
Getting outside help
When to hand it over: Bring in help when planning LED volume productions.
Where this comes from
- Unreal Engine Documentation — In-Camera VFX
- Unreal Engine Documentation — nDisplay
The figures and practices above come from the sources listed.
Working on something like this?
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Where to go next
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