Remember that silly—but rather cool—video in which a guy showed a completely preposterous way to watch 3D movies, using electronic-induced blinking rather than shutter glasses? Of course, the guy wasn’t blinking at 60Hz. Here’s how they did it: Using 3D projection in post-production.
https://gizmodo.com/this-is-absolutely-positively-the-best-way-to-watch-3d-5734541