What are the main aspects of the relationship between film and technology?

With the help of advanced and properly used scientific and technological means, the picture effect of the film can be better, so as to show the theme of the film in a more perfect form, improve its artistic level and bring more wonderful visual experience to the audience.

Film is a comprehensive art, and the combination of artistry and technology is the general trend. If the two can be perfectly integrated, such a work is worth looking forward to watching.

The following examples show the scientific and technological means that have been applied in movies at present:

Digital virtual camera technology.

Avatar has three formats for viewers to choose from: 2D, 3D and IMAX-3D. The budget of this film is over 500 million dollars, which is the highest in the history of film.

The production of Avatar mainly relies on the digital virtual camera technology proposed by Cameron. Yao Rui analyzed the principle of digital virtual photography technology: "Digital virtual camera technology is to put the motion capture points on people's faces and characters, and the characters with tracking points perform in front of the camera. The computer captures the motion information of each motion point (including each joint) and makes a three-dimensional model. Like the Na Wei people in the film, they were all shot after looking for real people to perform. "

Step 2: Matte painting

The virtual planet of Avatar adopts the technology of sub-light painting, which is commonly called digital landscape painting. Yao Rui said: "Just like the panorama in the film, the director will go to the location to collect the scenery, make a visual reference, and then surrealise these human imaginations, and then ask the digital landscape painter to draw it with relevant production software." The image drawn by matte painting is more realistic than that made by 3D, and some details of human movements can also be accurately recognized by matte painting.

Action control system

Iron fist is a sci-fi movie produced by DreamWorks Pictures. Focusing on the robot boxing competition in the future world, the film tells an inspirational story full of action, dreams and affection.

How is the robot scene made in the movie? Yao Rui said: "The film uses two sets of equipment, one is a digital virtual camera, and the other is a motion controller, which is the rocker trajectory system. The motion control machine is used to take action shots. First, you should set the first entry point accurately, then set all points in the process of movement, and finally set the last point. The motion controller can draw up the motion trajectory according to the set point, so that the displacement between the initial point and the last point remains unchanged. In the face of complex scene scheduling, the motion control machine comes in handy, which can ensure that every action has the same motion trajectory, and at the same time, every action is accurately captured. "

If it is controlled manually, there will be a little deviation every time you shoot, and the motion controller can ensure that the two tracks are exactly the same. In the film, the robot's fighting scene was shot by a motion control machine. As for the crowded boxing scene, it is a combination of the later audience scene and the robot fighting scene.