In recent years, the world of cinema, television and video games has changed completely thanks to the virtual productionAnd if there is one tool that is leading this change, it is Unreal EngineThis real-time engine, developed by Epic Games, has not only revolutionized the creation of video games, but has also found its place at the heart of the most innovative audiovisual productions, such as the successful series The Mandalorian.
Today I want to tell you how Unreal Engine is marking a before and after in virtual production, how real cameras connect with digital environments, the impact of LED screens and next-generation sets, and, of course, the importance of NVIDIA and its graphics cards in making all this possible.
Unreal Engine: The engine that is transforming the industry
For those unfamiliar, Unreal Engine is a graphics engine capable of creating virtual worlds in real time with breathtaking visual quality. The key? Its power to fluidly render hyper-realistic environments, allowing you to work on projects with a creative freedom that was previously unthinkable.
With technologies such as Lumen (dynamic global illumination) and nanite (which allows you to load millions of polygons without compromising performance), Unreal Engine not only allows you to build movie sets, but it does so in real time, saving hours of work and reducing production costs.
But what has truly taken it to the top of virtual production is its ability to integrate with physical cameras and LED screens, creating a seamless bridge between the real and digital worlds.
How to connect virtual cameras with real cameras
One of the most impressive aspects of virtual production is how the movements of a physical camera on a set can be synchronized in real time with a virtual camera in Unreal Engine. This is critical for digital environments projected onto LED screens to react realistically, maintaining correct perspective and parallax.
How is this achieved?
It all starts with him tracking (tracking) of the physical camera. This is where technology comes into play that allows you to capture its position, orientation, and movement in real time. Some of the most common tools include:
- optical systems , the Vicon o OptiTrack, which use infrared cameras to track markers on the camera.
- Real-time tracking devices such as Mo-Sys o Ncam, which are placed directly on the camera and collect data about its position and lens parameters (focus, zoom, etc.).
This data is sent to the Unreal Engine through systems such as LiveLink, a native feature that synchronizes the physical camera with its virtual counterpart. This way, every movement of the real camera is instantly reflected in the digital environment, allowing the director to see the final result on a monitor, just as it will appear on screen.
LED screens and new production plates
Now, cameras are only one part of the equation. The other big piece of the puzzle is the LED volumes, those recording decks surrounded by huge LED screens that project the digital environments created in Unreal Engine.
Why are they so important?
- Total immersion: Unlike traditional green screens, LED screens allow actors to interact with their surroundings in real time, enhancing their performance.
- Natural lighting: The screens emit light directly onto the actors and objects on set, eliminating the need for lighting adjustments in post-production.
- creative flexibility: Switching from a desert landscape to a snowy forest is as easy as loading a new environment into Unreal Engine.
An iconic example of the use of LED volumes is the series The Mandalorian, where these technologies were used to create vast alien landscapes without leaving the set.
NVIDIA's role in virtual production
None of these technologies would be possible without hardware capable of handling such complex real-time graphics processing. This is where NVIDIA, whose impact on virtual production is enormous.
With the launch of the new graphics cards RTX 50 SeriesNVIDIA takes graphics performance to a new level. These cards feature technologies such as:
- Third-generation Ray Tracing, which allows you to manage hyper-realistic lighting, shadows and reflections with incredible fluidity.
- DLSS-4, an artificial intelligence technology that improves graphics quality without sacrificing performance, ideal for working with 8K environments in LED volumes.
Thanks to this combination of power and optimization, NVIDIA and Unreal Engine form a perfect pairing that is transforming audiovisual storytelling.
The future of virtual production
Virtual production isn't just here to stay; it's changing the way we tell stories. Today, with tools like Unreal Engine, LED displays, and hardware like the NVIDIA RTX 50 series, it's possible to create worlds that previously existed only in our imaginations—and do so in an efficient, sustainable, and accessible way.
By Juan Nieto, digital art expert.
