How do overlays in NFL look so real? Like paint? How are they so accurate?

Question

Players can walk over them and stuff and nothing happens, almost like they are real paint in the grass.

In: Technology

Answer 1

Vox did a really nice, but short video that explains how it works: [https://www.youtube.com/watch?v=1Oqm6eO6deU](https://www.youtube.com/watch?v=1Oqm6eO6deU)