With the objective of creating a more immersive and visually engaging broadcast, Creative Technology (CT) was tasked with designing and implementing a state-of-the-art virtual production LED volume at the BBC’s Cardiff studios. The goal was to provide a dynamic environment that would enable presenter Jeremy Vine to effectively convey complex electoral data in a way that was both accessible and visually compelling. This case study explores the challenges faced, the innovative solutions employed, and the overall success of this ambitious project.

Objective.

The BBC sought to create a broadcast environment that not only enhanced the visual appeal of its election coverage but also improved the clarity and accessibility of complex electoral data. Jeremy Vine’s role as a key presenter involved explaining intricate statistics to a wide audience, a task that demanded a dynamic and visually compelling setting. The BBC’s vision was to move beyond traditional greenscreen setups and employ a cutting-edge virtual production LED volume, capable of delivering multiple perspectives and interactive elements in real-time. CT’s challenge was to create a seamless integration of technology that would meet the high standards required for live broadcast and deploy a system capable of accommodating a multi-camera shoot while providing Realtime information to Jeremy about poll data as it was happening, all while offering a seamless and immersive experience for viewers.

The project began with the installation of a Roe Black Marble LED floor, featuring a matte finish to reduce reflections and enhance the visual quality of the virtual environment. This matte-topped floor was crucial for minimizing unwanted glare and maintaining a consistent, high-quality visual output. Complementing the floor was a curved Roe Black Pearl Version 2 LED wall, designed to create a wraparound effect. The curvature was essential for creating an immersive environment and ensuring visual consistency across multiple camera angles. This design minimised colour shift issues, commonly seen in LED displays when viewed from extreme angles, ensuring a uniform and vibrant visual presentation.

Ghostframe Technology

One of the standout features of this project was the implementation of Ghostframe technology. This allowed the same LED wall and floor to display different video feeds simultaneously, catering to each camera’s perspective. This innovation ensured that each camera captured its own optimized feed without requiring separate setups. Additionally, Jeremy Vine could view critical AR elements and on-screen notes directly on the LED surfaces, enabling him to interact more naturally with the virtual environment, a feat not possible with traditional greenscreen setups.

Advanced Media Servers

Central to the project’s success were CT’s new G2 media servers running VizRT, which were responsible for rendering the high-quality visual content in real time. These servers are equipped with Intel Xeon processors and NVIDIA Ada Lovelace graphics cards, making them exceptionally powerful platforms optimized for real-time rendering. The G2 servers were tasked with processing the enormous amounts of election data, including live updates and complex graphics, and rendering these into visually stunning environments on the fly. This capability ensured that the Viz remained dynamic and responsive, providing real-time feedback and allowing for smooth transitions between different visual elements during the live broadcast.

Curved Back Wall Design

The curved LED wall was a crucial aspect of the set design, creating a continuous visual backdrop that enveloped Jeremy Vine’s performance space. This design choice was visually appealing and functionally important, allowing the space to accommodate multiple camera angles while maintaining a consistent visual narrative, and gave Jeremy are large area to move around. The wall was supported by two flat sections, placed to ensure stability while fully realizing the intricate design. execution of this design ensured that the visual output remained uniform across all angles.

The LED volume was constructed in the atrium, a central area that needed to remain accessible throughout the setup and broadcast. CT carefully planned the load-in and setup processes to avoid disrupting the studio’s regular activities, coordinating closely with the BBC’s operations staff to complete the installation efficiently and with minimal impact.

A significant challenge was managing light contamination in the open atrium. The space featured a glass roof and full-height glass walls, allowing natural light to enter throughout the day. Even though the glass roof was vinyl-wrapped to reduce glare, the changing light conditions presented difficulties in maintaining a consistent colour temperature for the broadcast. The lighting team adapted by placing lights around the perimeter of the atrium, rather than in the ideal overhead positions. This unconventional setup required careful collaboration between departments to ensure that Jeremy Vine was adequately illuminated without causing unwanted light spill onto the LED surfaces, which could have disrupted the visual coherence of the virtual environment.

To ensure perfect alignment between the virtual environment, physical space, and camera tracking systems, CT conducted a laser scan of the LED volume. This scan created a detailed 3D model of the space, used to align the digital content generated by the Viz RT engines with the physical LED displays and the camera tracking system. Precise alignment was critical to maintaining the illusion of a seamless virtual environment, particularly when integrating virtual set extensions and AR elements into the broadcast. Any misalignment could have resulted in visual discrepancies, such as virtual objects appearing out of place, which would have compromised the viewer’s experience.

The innovative use of Ghostframe technology allowed the production team to seamlessly switch between different camera perspectives, each displaying its unique content, without the need for multiple physical setups. Jeremy Vine’s interaction with the AR elements was smooth and natural, adding a dynamic layer to the presentation that engaged viewers and enhanced their understanding of the complex electoral data. The project not only met the BBC’s objectives but also set a new standard for the use of virtual production in live television.