According to the film's VFX supervisor, Pablo Helman, who stated that 1,750 shots were required for two and a half hours of shooting, the carefully placed on-set lighting captured the actor's facial performances from different angles, while at the same time shining infrared light on the actors' faces without being seen on the production camera. Thus, the system was able to analyze the lighting and texture information and created a machinable geometry network for each frame. Working with multiple cameras is indispensable in the process. While shooting, they work with a three-camera rig with a central camera, which also has a director's camera. The other two cameras are there to record data.