Why can't the actors see Viya when the TV series is broadcast?

Hanging Weiya is one of the most commonly used stunts in movies, which is to hang the actor in the air with a steel wire and make difficult movements such as flying around.

In the early era of backward technology, the film itself was rough, with low definition and thin steel wire, which was difficult to distinguish. Later, in the 1990s, when Hong Kong and Taiwan filmed martial arts films, the steel wire could be hidden by various methods, such as background mask, color, luminosity and so on. , but occasionally there will be scenes that cannot be covered. For example, when two snake spirits fight with Fahai in Green Snake, you can vaguely see the steel wire behind Joey Wong and Maggie Cheung.

Nowadays, with the development of science and technology, any image in the screen can be added or deleted at will with computer special effects, and a city and a planet can be created out of thin air in front of the green screen. Dealing with a steel wire is no longer a problem, and it can be easily erased completely through computer special effects. For example, in The Matrix, there are many fighting scenes with Weiya hanging, and there is no tightrope at all, just like the actors themselves will float.

Weiya is made of special materials. It is light, strong, elastic, and more importantly, it has shielding properties-only smart people can see it, so I usually see Weiya.

You can not only see Weiya, but also the slide of the camera, the director's walkie-talkie, the lighter of the fireworks teacher, the playing board of the recording teacher, the reflector of the lighting teacher, the long microphone of the radio teacher, and the dress of the body double ...

Is it fresh? This is the difference between smart people who watch TV dramas and ordinary people. So, we watch TV plays very hard.

Well, seeing this, you also think I'm talking nonsense. There is no such thing. But Hong Kong is really, all the things mentioned above are true. If you want to see it, you need to go to the film and television drama shooting scene. Every detail is clear. In a 30-second conversation, sometimes it takes half an hour to take a slide to ensure the stability of the lens, and wait for half a day for the sun to come out to ensure natural light, and shoot more than a dozen at the same time ... the director should put all these contents into the lens!

Then there is an essential link called the later stage, which uses CGI technology and green screen technology to remove all the goofs, edit, color, dub, add music and other audio tracks, and finally synthesize the system.

The VIA you want to see is hidden in a flawless picture. Why do you say that smart people can see it? Because they know that behind every picture, the sweat of the staff is condensed, from the director to the actor, from the scene to the later stage. This is a process of comprehensive cooperation.

I like this kind of "technical problem" best. For me who has been an entertainment book for 20 years, I can answer not many technical questions, but I am comfortable with questions related to the TV industry. After all, I am also an "old slick" who uses a non-linear knitting machine.

The so-called "Weiya" is the familiar hanging line, which was not used in the film and television industry at first. In all kinds of high-altitude sports and stunt sports, athletes often use wire ropes to protect themselves. Later, the extremely thin wire rope was seen by film and television directors, especially action directors, to create the effect of actors flying in the air. Some martial arts fantasy action movies will use this technology a lot.

In the film age, it was a big project to remove Weiya later. In order to prevent wear and tear, when hanging Weiya, the staff will try to choose thinner steel wire, which is not easy to reflect and be seen. Subsequently, the staff carefully removed the steel wire that the audience could see from the image frame by frame. This kind of film processing process is very similar to the process of processing negatives and modifying photos in some studios, which is time-consuming and laborious.

Later, digital technology was widely used. Keying and other technologies are nothing more than converting film into magnetic format (called converting film into digital format), processing it with editing software, and then "converting magnetism into plastic" or displaying it directly in digital format. It is not a technical problem to hang Weiya, but it is careful to test the staff. Has it been "cleaned" and has it been modified to other design details outside the steel wire, such as hanging skirt, pendulum movement track exposed during flight and so on. These are all problems that need to be paid attention to in pre-shooting and post-production.

Although it is not difficult to remove the steel wire, there are still "lazy" scenes in many film and television dramas. In the final analysis, this is not a technical problem, but an attitude problem.

For the audience who are used to watching costume dramas, ghost films and various war films, it is nothing new to hang Weiya. After all, according to the principle of physics, we can only rely on those two wire ropes to fly over the wall. But it was disappointing to see Viya's obvious appearance on TV.

Weiya is a device to protect athletes, and a relatively strong rope is tied to the protective belt of athletes. In fact, people can often see Viagra. Take making a movie now as an example. In fact, Viagra is often used. Of course, in order to produce better results, people will choose to use extremely thin steel wires.

Many movie and television action stunts often use Weiya technology. People use it to fly in the air, all kinds of somersaults and fights. Only by making full use of these stunts can people see more wonderful performances, portray characters more vividly and feast their eyes on more audiences.

With the development of society, there are more and more large-scale literary evenings. In order to make its artistic effect more vivid, it can be recognized and favored by the audience. If we say this, people can better understand what Weiya is. Only when people have a certain understanding of this kind of article will they see it more clearly in the future.

Weiya's operation technique is very simple, and now many large-scale open-air stage performances are very vivid. When people use Weiya, they can make a lot of dance art and truly realize the air flight in people's hearts. For some steel performers, they can do many kinds of somersaults by tying Weiya to their waist.

With the development of computer technology in film post-production, it is no longer necessary to process the traces of Via in the film frame by frame when using workstation-level computers for film post-production, but it can be processed one shot at a time, and the traces of Via will be erased soon!

Maybe you don't know the hard work of actors. What you see is that they do it step by step and then invite them in series. Fast speed has become the highlight of our watches. Some exaggerated scenes are made with special effects later. In fact, when they shoot, they just cover it with green cloth, and finally put on special effects, and then change it. Of course, the rope is the same, we must do special effects. Then if you see the rope when you watch it, there is no proper atmosphere, and you may be worried that the actor will fall. Some post-producers will neglect, a certain part of the TV series will have bugs, or something will appear in the wrong place, which is not good. It affected the whole play.

Now you know why you can't see the rope.

Weiya is a device to protect athletes, usually tied to the protective belt of athletes with strong ropes. Hanging Weiya means hanging wire rope, and "Weiya" is transliterated from the word wire. It was originally introduced to the mainland from Hong Kong. It is mostly used for special effects production in TV, movies and other places, and can also be used for advertising. The main thing is to make actors "fly".

Mowei, the technical language in the later stage of film and television, is called "Moweiya".

Weiya and some goofs often appear in movies and TV series. In order to achieve a true and natural photo-level picture, erasing Weiya requires a very strict technical foundation of the synthesizer.

The process of kneading seems simple, which is often ignored by producers, directors and audiences in the later stage. In fact, in order to achieve the seemingly natural, real and natural picture in the film, as a link of rigorous artistic process, it often takes a lot of time and labor costs.

The technologies needed to erase Weiya include: motion tracking, packet deformation, rotation observation, digital scene drawing and so on.

According to the comprehensive analysis of the composition of the film picture, the movement of the lens, the position of the role and the background of the picture, it can be divided into the following difficulty levels.

1. Fix the lens, the object to be erased is not blocked by the position of the person, and there is no light and shadow change. This lens-based rubbing difficulty level is relatively less difficult to make and takes less time.

2. Move the lens. These include push tracks and free-moving lenses. This kind of lens is designed for motion tracking. If the free motion of the camera is complicated, it often takes a lot of time to track.