2, 3D movie principle: the reason why human vision can distinguish between near and far, is to rely on the gap between the two eyes. People's eyes are separated by about 5 centimeters, two eyes in addition to aiming straight ahead, look at any one thing, the angle of the two eyes will not be the same. Although the gap is very small, but through the retina to the brain, the brain will use this tiny gap, to produce the depth of the distance, thus creating a sense of three-dimensional. Although one eye can see the object, it is not easy to distinguish the distance between the object's near and far. According to this principle, if the same scene, with two eyes perspective gap to create two images, and then let the two eyes on one side, each see their own side of the image, through the retina can make the brain to produce a stereoscopic sense of depth of field. A variety of three-dimensional demonstration technology, but also the use of this principle, we call it "polarization principle".
4D movie principle: 4D cinema is based on 3D stereoscopic film plus environmental effects simulation simulation and the composition of the new film and television products. The so-called 4D film, also known as four-dimensional film; that is, three-dimensional stereoscopic film and the surrounding environment simulation to form a four-dimensional space. Audience in watching three-dimensional film, along with the changes in film and television content, real-time feel the storm, lightning, rain, impact, spraying water spray, patting the legs and other events around the stereoscopic image corresponding to the events that occur around the 4D seat has a water spray, jet, vibration, sweeping the legs and other functions, to pneumatic power. Environmental simulation simulation refers to the theater installed with snow, rain, lightning, smoke and other special effects equipment to create an environment consistent with the content of the film. Both of these types of movies have an immersive and thrilling effect.