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In order to see things in 3D each eye must see a slightly different picture. This is done in the real world by your eyes being spaced apart so each eye has its own slightly different view. The brain then puts the two pictures together to form one 3D image that has depth to it.
A 3D film viewed without glasses is a very strange sight and may appear to be out of focus, fuzzy or out of register. The same scene is projected simultaneously from two different angles in two different colors, red and cyan (or blue or green). Here's where those cool glasses come in -- the colored filters separate the two different images so each image only enters one eye. Your brain puts the two pictures back together and now you're dodging a flying meteor!
3D glasses make the movie or television show you're watching look like a 3-D scene that's happening right in front of you. The screen is converted to the bottom of the sea or to a stadium. While watching the Olympic Games, the spectator feels like being in the stadium. At the Opening Ceremony he thinks that he is in front of the athletes who are parading, that he is participating and he is not just a spectator
The method of the Cultural Centre uses linear polarized lenses because they allow color viewing. Two synchronized projectors project two respective views onto the screen, each with a different polarization. The glasses allow only one of the images into each eye because they contain lenses with different polarization.
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