Yesterday I saw the movie Final Destination-4 in 3D. The 3D effects was awesome but the movie was not up to the mark when compared to its previous series. The whole time I was thinking about the 3D technology, a nostalgic scenario - that is the same thoughts came wen I watch avatar for the 2nd time. And after that movie I was searching for how to view a 3D movie in my 17" crt. but ended up with no-working-proofs/findings. But this time while watching movie I tried watching with one eye closed for sometime. But you know what, i didn't feel that 'effect' then. And I was so interested in thinking about its technology.

Here we go. In this 3d technology, two images are projected superimposed onto the same screen through different polarizing filters. The 3d glass we wear will b having the polarizing filters. And each eye sees different images. So projecting the same scene in to both eyes from different perspectives will create the ILLUSION or 3D EFFECT.

So the technology behind the stereoscopic motion picture (3D movie) is Fooling Our Eyes ;)

If you check the 3D image below you can see that there are 2 images overlapped.

NB:- Image is borrowed from ioquake3.org