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How 3D Movies Are Made3/25/2021
But do we all know how 3D movies work in theaters The ingenius technology works by exploiting human spatial vision (discussed previously in episode one.This involves some special equipment: a special projector, 3D glasses for viewers and a specially coated screen.This camera features two lenses and always records two perspectives of the scene during filming, and these are placed together during the editing process.These two perspectives are the basis of digital 3D technology and how it uses the human brain to produce surreal effects.
In this case, two types of glasses have been developed: polarization filters and shutter glasses. The 3D projector offsets the images for the left and right eyes in the various directions. ![]() Polarized filter glasses ensure that only the correct images fall on the corresponding eye, since these are only able to pass through the right or left lens. The brain combines this information and enables us to perceive the intended 3D images. The lenses of the glasses use liquid crystals (just like in an LCD TV) that control the light that is able to pass through the lenses electronically by opening and closing them. ![]() The shutter glasses open and close the left or right lens 60 times per second. They are controlled by infrared to ensure that each separate eye is able to see only every other image in alternation. Remember, people perceive movement in a film as fluid when they are shown at 24 images per second. Since the number of images is separated, the images are shown at a high frequency. At 60 images per second, each eye sees 30 images, which results in fluid movement. Since the image does not need to be polarized, it doesnt lose any color or focus. The disadvantage is that these glasses are relatively expensive and heavy. The polarization filter technique, on the other hand, provides a good, low-priced alternative to this. Even if the image quality may not be the best possible, polarized filter glasses are very light and comfortable to wear. They arent as costly and financial damages can be kept at a minimum in case they are lost or destroyed. How 3D S Are Made Install The EquipmentIt remains to be seen whether 3D technology will become so popular that all theaters will need to install the equipment. Several of Hollywoods big names, including Christopher Nolan (Inception), want to wait until 3D technology has developed more before they produce their movies in this style.
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