3D certain film must take 3 D glasses? Why?
Do not wear 3D glasses, then there is no 3D
Not necessarily, some can be presented from the computer
In order to ensure the best results withTake off the 3D glasses, you see the movie screen is heavy. The two overlapping images are not exactly the same, but with two different cameras. In fact, the principle of 3D film as the human eye is the same, we see with the naked eye, the world is a three-dimensional, two eyes because of slight angle difference to the brain via the retina, can distinguish the scene before and after the distance, and thus have a strong three-dimensional sense.The 3D film was filmed with two cameras imitating the human eye. There is an insect eye, a 'human eye', and a giant eye in the line. If you want to take a very close view, the two cameras are as close as the eyes of a fly. In general, the distance between the two cameras is similar to that of the human eye. If you're going to take a long view, the two cameras will have to look like giant eyes. According to the shooting distance, there is a formula to calculate the distance between the two cameras should be placed far. But the formula can not rely on light, mainly rely on experience. Sometimes two cameras may be vertically or diagonally placed, and then use a mirror, can finish shooting."
