Popular IT channel Linus Tech Tip on 3D

[Just_Discovered_3D]

Originally Posted by trialobite

For projectors to use polarized glasses, you still need to have a special, expensive silver screen installed. You also need a second projector and a polarization filter. The difficulty level goes up significantly. You could also do 2 projectors with Dooby-style color-filter glasses but that is also expensive. There’s no reason to do away with active glasses in projectors. It’s by far the lowest bar to entry for 3D on any device made after 2017. I definitely agree that if we could get new 3D TV’s, it would be great to standardize around polarized glasses (or autostereoscopic lightfield displays.)

I'm not sure that the silver screens are that much more expensive (last I looked it was a 50% price premium or so), and I hear that gray screens can help projectors have better contrast. Snagging 2 projectors and an alignment rig also doesn't seem that costly.
Finding a place to mount them though...

Active 3D on projectors is pretty nice, but I'd like to see modern refresh rates for the glasses. Although, as a side benefit, active glasses put the kibosh onto using a laptop while watching a movie, and they reduce the amount of phone usage during a film as well.