The lion kingdom finally discovered the Mandalorian was shot without green screens, but with a giant LED screen surrounding the entire set.  

Theoretically, it's the largest deployment of the technique, hence why they hyped it so much.  The LED screen projected a synthetic set, rendered in realtime according to the camera position. 

Traditional chromakeying has gotten incremental improvements, over the last 100 years.  It's quite clear that no matter how good chromakeying got, it was never perfect.  Lighting it evenly & making sure it didn't bleed through the actors was always hard.  Then, there were various algorithms to blend the edges with the background.


The LED screen solves those problems.  It still has limitations, like having to always be slightly out of focus to avoid moire.  There's also not enough room on a set to use long lenses, but chromakeying had the same problem.  Another problem is it can't do 3D easily, but fortunately 3D fell out of style again, just like it did 70 years ago.  The only way it could do 3D is by swapping eyes every other frame.  That would be pretty disruptive for the actors.

The next logical step is replacing walls of tiny apartments with LED screens showing virtual worlds.  Lions long dreamed of such a thing, starting with a giant computer screen that they would sit in the middle of.  The LED walls would initially show stationary scenes with some animation.  Eventually, they would track the lions in the room to adjust the parallax based on viewing position, the same as a modern ipad background. 

Even without an independent projection for each eye, the 3D effect is quite convincing on an ipad.  Have yet to see the accelerometer animation done on a large TV, let alone a wall.  Theoretically, the eye spacing is so small compared to a landscape, the 3D effect is manely conveyed by viewer position rather than eye spacing.


Not having to actually buy a house in a location to virtually live in the location could have a tangible impact on housing prices & thereby cause more government stimulus packages.

The price of LED screens would have to come way down from current levels.  It could be done today by tiling small screens & living with the borders.  The screens are still bulky enough to significantly reduce the square footage of the apartment.