Chen Feng walked over and patted him on the shoulder, Yao Yi turned around and saw that it was Chen Feng, and said, "It's here...... Let's take a look, the special effects needed for the movie are basically about 20% completed, and now you can just come to the test. In the past few days, he has been busy adding post-effects to "Dusk", and his eye circles are a little dark, and he may not have slept for a few days.

Chen Feng said: "The work really needs to be inspected...... I feel like you've lost a lot of weight recently, and it seems that this kind of work is really a good way to lose weight, so help me do it more in the future. ”

Yao Yi waved his hand and said with a wry smile: "Forget it, this painful weight loss method is not suitable for me, I still hope to lose weight in a relaxed environment, you look at this." Yao Yi was still a little chubby and pointed to the computer screen in front of him with his right hand, and then said: "This scene, this shot of shrapnel flying horizontally, we have used nearly one hundred and sixty layers alone, see how it works?" ”

Chen Feng nodded and looked at his gaze on the computer screen, the shrapnel flying sideways on it was indeed quite shocking, I believe that with the addition of three-dimensional technology like theirs, it will be quite powerful. It's just that this kind of scene originally only needed dozens of layers to complete, after all, although Chen Feng was not professional in this area, he at least had a certain degree of attainment, and Chen Feng was also able to solve many production problems.

In fact, under normal circumstances, when watching a 3D movie, we can not only see the movement in the up-down, left-right direction, but also the movement that leaves us or comes towards us. 3D movies have this effect because the world we see has been processed by the brain. Because of the difference in the position of the two eyes, the image seen by each eye is slightly different. The brain processes these images into dimensional vision, allowing us to distinguish the sense of distance. That's how 3D movies work – let each eye receive different images, and let the brain do the rest.

The most common cinematic 3D effects. It is achieved by "optical separation technology". It relies on polarized light and optical filters so that each eye receives only a portion of the light. and filter out the other part. In the last century, when shooting 3D films, people would add a horizontal polarizer in front of a lens to let only the light vibrating horizontally pass through; A vertically oriented polarizer is added in front of the other lens. Side by side, the distance between the two lenses is about the same distance as the human eye, and you can start shooting. During playback, have the viewer wear glasses with polarizers in the same direction as the camera's polarizers. In this way, the glasses in the left eye will completely filter out the image taken by the camera on the right, and the glasses in the right eye will filter out the image from the camera on the left. This kind of 3D film requires the viewer to sit up straight.

The 3DH technology that Chen Feng and the others want to use is an improvement of 3D technology, which created RealD3DH. The direction of its polarized light vibration rotates in one circle. Coupled with the playback speed of 6 times the speed of traditional movies. You can watch the movie as much as you want. Chen Feng believes that RealD3DH will replace the existing 3D technology as the most widely used 3D film technology.

Light fractionation is a passive 3D film technology. That is, it does not require control glasses. The same is true for color separation technology. Some people may still remember the stereoscopic film of the 80s of the last century -- its two spectacle lenses are different colors. Without glasses, the film is projected like a color album with a biased print. When you put on the filter glasses, you can see a three-dimensional scene with vivid colors. Its biggest weakness is that it is easy to cause visual fatigue, and it has faded out of the field of filmmaking. Until 2007. Dolby developed the Dolby3D system, and the color separation technology was re-energized. With the help of a filter placed in front of the projector, the light emitted by the projector is divided into red, green and blue primary colors and projected onto the screen. By using filters to receive the high-frequency and low-frequency parts of these spectrums separately, a stereoscopic effect can also be achieved. This technology is much better than traditional color separation technology. On top of that, the projector can show 3D movies with a filter attached, while traditional movies can be shown with the filter removed. At the premiere of "Zhu Xian", Dolby3D+IMAX was used. …,

As long as the two eyes see the exact difference in the image, we will see a three-dimensional world. Therefore, active 3D cinema technology adopts another way of thinking -- controlling the light transmission of glasses. Let each eye see half of the picture. As long as the program of the lens darkening is synchronized with the display, stereoscopic vision can be formed. Nvidia, a major graphics card manufacturer, has already made this product available on home computers, and some movie theaters have started using this technology. But it costs more.

The current 3D film technology has reached a mature stage, and as for which technology will eventually become mainstream, it is no longer a technical problem, but another question.

3D cinema is not the only direction in the development of film technology. For example, the viewing area of the "giant super large screen" IMAX screen is about 10 times larger than that of ordinary movie screens. And through a variety of technological innovations to ensure that the big screen can still get clear and good visual effects, it is easier for the audience to have a sense of immersion. After 30 years of development, IMAX screens have begun to become an important standard for people to watch movies. This is also the reason why many articles encourage everyone to watch 3D+IMAX "Zhu Xian".

After looking at the clip, this kind of scene was really shocking, Chen Feng felt that the shrapnel was flying in his ears and in front of his eyes, and he felt that his body was about to be pierced by shrapnel.

"It's really good," Chen Feng said admiringly: "I can't fault this effect, it's just, how did you come up with more than 1oo layers?" ”

Yao Yi knew what Chen Feng meant, so he said to him: "That's the case, the special effects of three-dimensional movies are completely different from the special effects of traditional movies, and they are more difficult...... Especially now with your stereoscopic technique, we need more energy to express the desired effect, and 160 layers is not too much. ”

Chen Feng nodded, but he figured it out in his heart, after all, they are now an extremely powerful stereo technology, and their requirements for special effects will also be extremely complicated.

His face was a little heavy, because now he was a little skeptical that these special effects could be completed within the estimated time, so Chen Feng asked Yao Yi: "Then according to this, these special effects may not be completed within the scheduled time, how long will it be extended?" ”

Yao Yi frowned and said, "It's a little later than expected...... But it won't be too much, everyone will work overtime, and it should be successfully completed as soon as possible. Now the situation is more serious than expected, but there is always a way to solve it......" (Your support is my biggest motivation.) )