Cinema What is the difference between 2D movies and 3D movies?

Difference: 2D movies are ordinary film movies. The biggest difference between the two is the viewing effect. 3D movies are more lifelike and real, and have an immersive feeling. Film movies cannot achieve this. A feeling, as for the sound, the difference is not very big.

Comparison:

3D is not necessarily better than 2D, it is just newer. They have attracted the attention of many software developers, and these people are attracted by the Hollywood-style Attracted by the charm of special effects.

There is no doubt that the artistry of 3D animation has not been fully developed. For most users, it is just a science rather than an art.

Compared with 3D animation, unit animation is easier to understand and easier to complete in many aspects, but in fact, it mainly relies on the talents of artists who have mastered traditional painting skills, and rarely relies on computers. , it is less attractive to those who would rather fall behind a No. 2 Pencil than a Pentium II. Extended information

3D principle:

People look at the same object with their left and right eyes. The angles seen by the two eyes are different, and the images formed on the retina are not exactly the same. The two images pass through After integration, the brain can distinguish the front, back, far and near of objects, thus producing stereoscopic vision.

The principle of stereoscopic movies is to use two cameras to imitate the perspective of human eyes to shoot at the same time. During screening, two projectors are also used to simultaneously project onto the same screen for viewing by the left and right eyes. Produce a three-dimensional effect.

When shooting a three-dimensional movie, two cameras need to be mounted on a special pan-tilt with adjustable angles, and the shooting must be done at an angle that suits the human eye.

The synchronization of the two cameras is very important, because even an error of a few tenths of a second will make the left and right eyes feel uncoordinated; therefore, it is necessary to make a plan when filming, so that the synchronization can be found during editing. point.

When showing a three-dimensional movie, two projectors are placed in a certain way, and the two images are projected point-to-point on the same screen in complete consistency and synchronization.

A polarizer must be added in front of the lens of each projector, one is a transverse polarizer and the other is a longitudinal polarizer (or an oblique cross), so that the screen will separate different polarized lights. reflected into the viewer's eyes.

Viewers should also wear polarized glasses when watching movies. The polarization direction of the left and right lenses must match the projector, so that the left and right eyes can filter out images with inconsistent polarization directions.

Only the corresponding polarized light image is 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 images are integrated by the brain, stereoscopic vision is produced.

Reference: Baidu Encyclopedia-3D Movie