This simulation works by using a composition that is the same size as the 3 screens combined. Referencing 3 cameras in this composition, which each cover 1/3 of the screen, the animation can extend across the screens. Well, it’s a little bit like that, but a lot more complicated.
When composing the actual animation, it will be easy to practically produce and render each screen output using this model. The simulation I’ve made provides sources an outputs which make it easy to produce content for this set up.