That sounds pretty neat! I didn’t even know that existed.
I was astonished. I had no idea it existed either.
I wlll say, I have a copy of the original “Top Gun” movie, and I saw a 3D copy of it and bought it, so...technology exists somewhere to convert flat movies, but it must be expensive.
It isn’t the old type with blue and green lens in the glasses. This technology (which was wholly dropped somewhere after 2017 I think) is in the television, not in the Blue Ray player, and the television syncs via bluetooth with the glasses at a refresh rate of 60 Hz, so that is how fast the polarity switches (I think 90 degrees) in the lens, so you are seeing polarity on in one image with zero degrees polarity visible with the other at either 90-180 degrees on the other, and 1/60th of a second later, I think it switches.
Online, people say it makes their eyes hurt, but I never felt any discomfort or strain from it at all. I think I have several dozen 3D movies (Including “The Martian” which is great, and “Gravity” which, although not being a great movie because it has the douchebag George Clooney in it, is pretty damn gripping to watch in 3D.
I am so disappointed the technology was canned.