S4 Studios Teams Up With Brompton Technology

S4 Studios has partnered with Brompton Technology to deliver a high-efficiency virtual production workflow for Expedition Files, the new hit series from the Discovery Channel.

With the support of Brompton's Tessera LED video processors, S4 Studios achieved an ambitious production pace, completing up to 25 shots per day, while maintaining exceptional image quality and real time control across their LED stage.

Filmed at XRM Studios (soon to be rebranded as Brandon Studios) in Burbank, Expedition Files follows renowned host Josh Gates as he investigates historical enigmas and unsolved mysteries from around the world. The demanding shoot required constant environment changes, rapid turnaround, and seamless coordination between physical and virtual elements, a perfect challenge for S4 Studios’ real time production pipeline.

"On most shoots, LED processors only control brightness and colour temp," explained Geoffrey Kater, Owner and Senior Creative Director at S4 Studios. "Brompton gave us so much more - input switching, nit levels, ShutterSync, phase, fade-to-black, freeze functions - all mapped to a Stream Deck for real-time changes. That kind of flexibility became a vital part of our on-set workflow."

The S4 Studios' production team includes Lead Unreal Engineer, Macario Alvarez, a seasoned developer with years of experience across top-tier game studios, and Unreal Engineer, Luca Lanzillotta, a specialist in LED wall systems with a background in electrical engineering. Together, they support a full creative-to-delivery pipeline for film, television, and commercial content.

The studio's extensive client portfolio includes Marvel, EA Sports, Paramount, Warner Brothers, BBC Worldwide, NBC Universal, Walt Disney Television, Lionsgate, PlayStation, and Focus Features, among others.

For Expedition Files, S4 Studios deployed Assimilate Live FX instead of Unreal Engine, opting for layered 2.5D environments with camera tracking to maximize speed and responsiveness. The LED volume, featuring ROE Visual BPv2 (Black Pearl) panels and driven by Brompton’s 4K Tessera SX40 LED video processors, enabled lightning-fast setup changes without sacrificing creative flexibility.

"This show required us to move fast, with six or more setups per day, for up to 25 shots," said Kater. "There's no room for technical downtime. With Brompton, we could instantly shift between setups, freeze frames using Frame Store, adjust brightness, or switch inputs with zero disruption. It's a game-changer!"

Brompton's SDI input capabilities also played a key role. "We had one system running Unreal and another for video playback," Kater noted. "With Brompton, we could prep new scenes on a second machine, and switch inputs instantly when ready, with no repatching and no lag."

Working closely with their stage partner XRM Studios, who invested in Brompton Tessera hardware, S4 Studios built a custom Stream Deck interface for managing the processors during live shoots.

"We created layouts that let our engineers control the processors directly, switching sources, toggling profiles, applying screen effects, all at the push of a button," Kater continued. "We also built profiles for different setups within the Tessera software, so loading a new scene was just one click. That kind of repeatability is massive when you are doing shot after shot."

This level of real-time responsiveness allowed S4 to choreograph entire scenes, from Arctic shipwrecks and jungle expeditions to the fog-filled streets of 19th-century London, using carefully planned physical props, layered media, and precise camera tracking.

"Virtual production doesn't have to be intimidating," Kater noted. "Our setup shows that it can be fast, cost-effective, and creatively flexible. Brompton is a key part of why that’s possible." He emphasised that using cutting-edge technology like Brompton LED processing gives the team the confidence to explore bold original ideas without being held back by technical limitations. "And it's reliable," he added. "You walk in knowing Brompton will work. That kind of stability reduces stress and lets our team stay focused on creativity."

www.bromptontech.com