I had the incredible opportunity a couple of years back to work as the Lead Volume Operator for Amazon's "Fallout Season 1". In this role I helped to manage the show-running of the Ndisplay project in UE5, optimise performance, build tools to help validate and check the health of tracking data, work with the VFX team to manage and record tracking and slate information for shots, provide sequencing and animation controls for live moments on-set, and help prototype previs tools for the director while we performed Pre-Light tests and the scenic elements were under construction.
One notable moment during production that validated the robust toolset developed for the show involved a complex lens swap for a shot on the final episode. In order to achieve a low-angle shot with the heavy film camera mounted on a crane arm inside the volume, the cinematographers chose to use a periscope-lens attachment that would allow them to raise the camera and angle it down, while still capturing a low-angle shot facing up. The interior of the observatory in this scene was a fully built set, which meant the volume operation team had no direct visibility of the camera and had to rely on our tracking tools and the camera feed in order to confirm the data was correct. I was able to catch and identify the seemingly erroneous tracking data, deduce what was happening, and apply corrective transforms to the camera frustum before the crew within the volume even radioed back that the lens swap had occurred.