What's the difference between 2D and 3D?

Difference: 2D movies are ordinary movies. The biggest difference between the two is the viewing effect. 3D movies are more realistic and have an immersive feeling, which movies can't achieve. As for the sound, there is not much difference.

Comparison:

3D is not necessarily better than 2D, but it has been updated. They attract the attention of many software developers, who are attracted by the charm of Hollywood-style special effects.

Undoubtedly, the artistry of 3D animation has not been fully exerted. For most users, this is just a science, not an art. ..

Compared with 3D animation, unit animation is easier to understand and complete in many aspects, but in fact it mainly depends on the talent of artists who master traditional painting skills, and rarely depends on computers. For those who prefer to lag behind Pencil rather than Pentium II, it is less attractive.

Extended data 3D principle:

People's left and right eyes look at the same object, and the eyes see different angles, so the images formed on the retina are not exactly the same. After the two images are synthesized by the brain, they can distinguish the front and back, the distance and the distance of the object, thus producing stereoscopic vision.

The principle of stereoscopic film is that two cameras imitate the visual angle of human eyes and shoot at the same time, and two projectors project onto the same screen at the same time for left and right eyes to watch, thus producing stereoscopic effect.

When shooting three-dimensional movies, it is necessary to put two camera brackets on a special tripod head with adjustable angle to shoot at the angle of human eyes.

The synchronization of the two cameras is very important, because even a few tenths of a second error will make the left and right eyes feel uncoordinated; So be sure to hit the board when shooting, so that you can find the synchronization point when editing.

When showing a three-dimensional movie, two projectors are placed in a certain way, and two pictures are projected on the same screen point-to-point in a completely consistent and synchronous way.

A polarizer should be added in front of the lens of each projector, one is a horizontal polarizer and the other is a vertical polarizer (or diagonally crossed), so that the screen will reflect different polarized light into the eyes of the audience.

Viewers should also wear polarizers when watching movies, and the polarization direction of the left and right lenses must match the projector, so that the left and right eyes can filter out unpolarized pictures.

Only the corresponding polarized light image can be seen, that is, the left eye can only see the picture projected by the left machine, and the right eye can only see the picture projected by the right machine. After these pictures are synthesized by the brain, stereoscopic vision is produced.

References:

Baidu encyclopedia-stereoscopic movie