Ncam press release about the tech set-up:
The state-of-the-art stage involved a train carriage set flanked by 18 x 3.5-meter Kvant LED sidewalls and an 18 x 1.5-meter front wall. There were also LEDs built on top of the carriage, to simulate the sun without additional equipment. Pre-shot 8k video plates were stitched into 360-degree spherical panoramas, before being projected onto the LEDs in real-time throughout production. Combined with Ncam tracking, this meant the team could visualize live CGI environments, set extensions, and CGI elements directly in-camera.
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