Question Is it worth using 3D glasses?

[DamonDice]

I found some 3D glasses that were originally included with a newspaper — I found them in the trash.


When I looked at the original newspaper through these 3D glasses, the areas with outlines showed colorful, shiny lines, but nothing special overall.

Then I configured the PotPlayer media player to play normal videos as 3D videos:


Why is the default 3D mode in many media players, such as PotPlayer and Media Player Home Cinema – Black Edition, set so that under the “Output” option it uses “Left/Right image (Side by Side)”?
As a result, what should be in the center of the image is pushed to the far left and right edges, making it impossible to watch properly even with 3D glasses.


I also found another pair of glasses in the trash, but I’m not sure whether they are meant for 3D:


However, it’s not possible to see any 3D image with them.

If I were to buy expensive 3D glasses, would the visual experience be impressive or mind-blowing?

 

[Paperdoc]

There are many different ways to do 3-D imaging, and each needs its own type of special glasses. Ones that work for some things do nothing when the image is presented differently.

An old method printed images on paper in red and green, and the glasses had lenses those colours. The impact was a 3D image that was almost simply black-and white, but with some red/green elements.

A technique widely used for movies recorded on film and projected two versions of the full-colour image each polarized differently, and the glass lenses wete similarly polarized at different angles so that each eye saw only one of those two images. This gave very realistic 3-D vision in full colour.

For computer monitors one method is to flash the images for left and right eyes on the screen alternately very briefly each and rapidly (e.g. 60 frames per second). The special glasses have lenses that can switch between transparent and opaque rapidly, too, and they are synchronized with the screen image flashes so that each eye sees only the part of the image it is supposed to. The frame rate is so fast that normal eyes cannot see this all as flashing images, but sees instead a stable full 3-D scene.

There are other methods I am not familiar with. But you can see that there are no single magic "3-D glasses". The right glasses have to match the image creation technology in use.