The process of filming in 3D is designed to mimic the way one views objects in real life. In recording 3D the technologically starts life by having two cameras mounted side-by-side, often on a rig separated by the same distance as between a person’s pupils. When watching the finished film, the images are transmitted to the left and right eye sequentially (one after the other) in a continuous flow; a process which is known as stereoscopic 3D imaging.
In order to obtain the 3D effect, one needs special active shutter glasses which decode that which the 3D cameras originally recorded. Active shutter glasses are synchronised with a 3D television via an infrared signal. When watching a 3D film, the stereoscopic method has the advantage of a Full High Definition 3D image for each eye versus other methods where the resolution is only half of Full HD. The result is said to be a very good perception of being right there in the actual scene.