Production and processing technology of film and television special effects

First, film and television special effects production

With the rapid development of film and television art, we should not only understand the theoretical basis of time arrangement in film and television production, but also understand the combination of film and television pictures and sounds. In the film and television picture, according to the scene, focal length, movement, angle, composition, light and shadow, color and other angles, an aesthetic picture is constructed. , thus giving the audience a beautiful enjoyment.

In film and television works, sound expresses emotion through the change of tone, timbre and sound intensity. When the sound appears on the screen, it will reflect the aesthetic feeling of film and television works and make the audience feel intimate. Compared with the picture, the picture is directly mapped to the audience's thinking, while the sound is indirectly mapped, and the picture is always in a dominant position in expression.

1, picture layout planning

Taking the promotional film of a concert as an example, the key to construct a theme that conforms to the concert lies in the composition of the background. For example, in this concert, the orange solid layer, the card wiping effect and the linear wiping effect are mainly used to assist the background picture, which is combined with the red solid layer and the crimson solid layer, and then the picture of a symphony orchestra, the rotating lighting effect and the outermost curtain form the first shot.

Open the After Effects software: first, right-click to create a solid layer, draw the shape of light with the pen tool, and modify the distance of the mask in time.

Secondly, select the entity layer and press ctrl+D twice, that is, copy it twice. After copying, remember to set the mode to overlay soft.

Finally, to simulate the real lighting effect, we need to add dynamic actions. Three light layers, the left one turns left, the middle one is still, and the right one turns right.

In the second shot, the poor stretching of the camera is a main control factor, because it controls the animation of six characters, so the lens effect of the picture is controlled by the white flash of the character picture and the light produced by the light factory. And then there will be smoke bombs. XX concert? In that case.

The third shot, the main task is character typesetting, changing the special effects of characters from big to small, and then from small to big. Pay attention to give people a bigger impact and ensure that the latter is smaller than the former. The final version is presented to the audience with a logo as the backplane.

2, the way to extract words

Using this creative writing method, we can express the specific time and place of the concert, highlight the central idea, attract the audience with words, and make the audience remember the date and place.

The specific steps can be carried out as follows: use text tools to? XXXXXXXX？ There are generally three special effects before using them. The first is compound fuzzy mixed fuzzy, and the fuzzy layer has three special effects, namely: right-click selection effect/fractal noise irregular wave noise; Then right-click to select the effect/color scale; Right-click and select Effect/Curve Curve Adjustment to adjust the dynamics of the solid layer. The second is the displacement map displacement mask. Generally speaking, its condition is to use the layer where it is located as a mask layer. This layer has two special effects: first, right-click selection effect/fractal noise irregular wave noise; Second, right-click to select the effect/color scale. The third is self-luminescence. When you return to the main interface, press 0 to preview the special effects.

Second, the film and television special effects processing technology

Generally speaking, in film and television works, the realization method of special effects is familiar to fans, but with the continuous progress of science and technology, the special effects processing technology in film and television is also developing. From the production techniques can be divided into two types, namely: traditional special effects techniques and CG special effects techniques.

1, traditional special effects technology

Traditional special effects technology appeared very early, the simplest of which is makeup, which is also the most effective; There is also a scene, which can realize the setting of a specific scene; Fireworks special effects, in early film works, fireworks special effects can often play a very good role; Early movies, this is also a common special effect means in the early days.

2. CG special effects technology

CG special effects are the so-called computer special effects, which are mainly determined by two aspects: first, the traditional special effects technology can no longer meet the needs of film performance, while the audience's requirements for film and television works are getting higher and higher, requiring more novel and powerful special effects technology; Second, with the continuous development of computer technology, electronic technology and multimedia technology, various technical requirements can meet the new means of special effects production. Now, we can classify special effects according to their functions:

First, three-digit special effects technology. Three-dimensional special effects technology is indispensable in many movies, and it should be used to contrast the roles and set the scenes. Therefore, it can be said that the three-digit special effects technology is the most difficult and difficult to solve in computer special effects technology. The general process of 3D technology is: modeling-determining materials and lighting-image binding-animation and final rendering. At present, the software of 3D special effects technology mainly includes MAYA software, realflow software and c4d software.

Second, digital landscape painting technology and conceptual design technology. Many buildings and backgrounds in film and television works simply do not exist in life. At this time, film and television designers need to combine their own imagination to design digital landscapes and concepts, presenting huge fleets, continuous mountains and magnificent palaces to the audience. In this process, the most important thing is conceptual design. Today, with unprecedented economic development and splendid culture, people's imagination is endless, and they are also very critical of film and television works, so the quality of conceptual design works greatly affects the popularity of film and television works.

Third, synthetic special effects technology. China people are no strangers to synthetic special effects technology. In many martial arts works, the flying heroes we see are all realized by synthetic special effects technology. Generally speaking, the technology of synthesizing special effects is realized in this way. Actor's actions (fighting, jumping, etc.) ) shooting from the sky. Actors need to use wire ropes to shoot on a blue screen or a green screen. Finally, the blue screen and wire rope are removed by computer software technology, and then the necessary sky scene is synthesized, which brings the effect of air fighting to the audience and gives people a sense of reality.

To sum up, in today's unprecedented development of film and television industry, computer software technology, microelectronics technology and multimedia technology will inevitably continue to develop, and film and television production is inseparable from special effects processing. Although there is a certain gap between China and developed countries in the production and processing technology of special effects, it can basically meet the needs of the audience. In the future, the processing technology of film and television special effects will also develop in the direction of humanization and intelligence, and the concept of special effects will be integrated into film and television works.