Reference Chinese entry: virtual reality
VR (Virtual Reality) is composed of a bunch of points and lines. Although it is composed of a bunch of lines and points, if there is sound coordination, it is called virtual reality. On the network, the sound of virtual reality can achieve the effect of surrounding, so the sound can express the orientation of the object, so the application of virtual reality on the network is quite extensive, for example, in education, it can simulate the movement of the object, the operation of the planet and the simulated flight of the plane; In terms of architecture, buyers can know the actual appearance of the house when it is completed and will not regret it after buying it; And it is more effective in entertainment, especially in the current games.
VR has three main meanings:
The first kind of virtual reality is to generate realistic entities with the help of computers, and "entities" are people's feelings (seeing, hearing, touching and smelling);
The second user can interact with this environment through human natural skills, which refer to human actions such as head rotation, eye movements and gestures.
The third kind of virtual reality often needs the help of some three-dimensional devices and sensing devices to complete the interactive operation. In recent years, VR has gradually moved from laboratory research projects to practical applications. At present, it has been widely used in military, aerospace, architectural design, tourism, medical care, culture and entertainment, education and other fields. In China, VR-related projects have been included in the plan, and the research and application of VR are in full swing.
Virtual Reality, referred to as VR or spiritual technology, is actually a computer system that can create and experience a virtual world. This kind of virtual world is generated by computer, which can be a representation of the real world or an imaginary world. Users can naturally interact with the virtual world by means of visual, auditory, tactile and other perceptual channels. It creates a three-dimensional virtual world that reflects the change and interaction of physical objects in real time through simulation, and provides users with a three-dimensional interface to observe the interaction with the virtual world through auxiliary sensing devices such as HMD and data gloves, so that users can directly participate in and explore the functions and changes of simulated objects in their environment, resulting in immersion. Virtual reality technology is the crystallization of high-tech integration such as computer technology, computer graphics, computer vision, visual physiology, visual psychology, simulation technology, microelectronics technology, multimedia technology, information technology, stereoscopic display technology, sensing and measurement technology, software engineering, speech recognition and synthesis technology, man-machine interface technology, network technology and artificial intelligence technology. Its fidelity and real-time interactivity provide strong support for system simulation technology. At the same time, it has immersion, interaction and imagination, which makes people immerse themselves in it, transcend it, get in and out of nature, form a multi-dimensional information environment and have interactive efficiency.
Immersion refers to the user's sense of reality in the virtual world, which makes it difficult for users to perceive and distinguish that they are in a computer-generated virtual environment; Interactivity refers to the user's operability of objects in the virtual world; Imagination means that users can acquire knowledge in all directions, exert their subjective initiative and seek the perfect solution to the problem by relying on their own perception and cognitive ability in the multi-dimensional information space of the virtual world. The fundamental purpose of researching and developing virtual reality technology is to expand human's cognitive and perceptual abilities and establish a harmonious man-machine environment.
Virtual reality technology is one of the emerging technologies in system simulation. In fact, it is a technology that uses computer technology to create a simulated imaginary world. Computers are used to create a dynamic three-dimensional visual environment that simulates the world, so that operators have the feeling of being there. With this new technology, participants use hardware, such as keyboards, data gloves, 3D mice, trackballs, joysticks, space balls, eye tracking devices, ultrasonic head trackers, helmet displays, video recording devices, large-screen color projectors, stereo goggles, headphones, voice recognition and synthesis devices, workstations and data sets. Get the perception and experience of the computer world you need.
VR, VRay for short.
, is a rendering plug-in for 3DsMax.
Characteristics of VRay:
VRay shadow tracing renderer has two packaging forms: basic package and advanced package. The basic suit has complete functions and low price, which is suitable for students and amateur artists. The premium package contains several special features and is suitable for professionals.
The functional features provided by the basic package software package.
Real light and shadow track reflection and refraction. (see: VRayMap)?
Smooth reflection and refraction. (see: VRayMap)
Translucent materials are used to make paraffin, marble and frosted glass.
Surface shadow (soft shadow). Include cubic and spherical emitters.
Indirect lighting system (global lighting system). Direct illumination (intensity) and illumination mapping (HDRi) can be used.
Motion blur. Include a sampling method similar to Monte Carlo.
Camera depth of field effect.
Anti-aliasing function Includes a fixed and simple two-stage and adaptive method.
Defocus function.
G buffer (rgba, material/object id, z buffer, speed, etc. )
Features provided by advanced software packages
In addition to all basic functions, it also includes the following functions:
Anti-aliasing function based on g buffer.
Reusable lightmaps (save and load support). For walkthrough animation, you can increase the sampling.
Photon maps can be reused (saving and loading are supported).
Motion blur and analysis sampling.
Really support HDRI mapping. Contains *. hdr，*。 Rad picture loader, which can handle cube and corner coordinates. It can be mapped directly without deformation or slicing.
A natural surface light source that can produce correct physical illumination.
Natural materials that can be calculated more accurately and quickly.
Distributed rendering based on TCP/IP protocol.
Different camera lenses: fisheye, spherical, cylindrical and cubic cameras.
Network license management enables you to use VRay system on the network without authorization.
Virtual reality (visual rock)
Not a style, VR is just a form ... a form of performance.
In the late 1970s, "gorgeous rock" represented by DAVIDBOWIE appeared in Europe and America. Now Japanese rock bands, especially visual rock, are very popular. They use exaggerated makeup models and wild and intense stage performances to express their views on music. Concert is the best occasion for those visual rock bands to explain their music world. So gorgeous rock is visual rock? In the late 1970s, "gorgeous rock" represented by DAVIDBOWIE appeared in Europe and America. Gorgeous rock introduces visual elements into rock and roll, which is characterized by gorgeous costumes and live performances. In the early 1980s, a band named X-JAPAN appeared in Chiba, Japan. They inherited the style of heavy metals in Europe and America in the 1980s, and at the same time borrowed from the heavy makeup of rock in Europe and America, and developed into a unique plastic aesthetics with the nationality of Japan-hence the birth of a "visual system". After that, the visual system gradually developed and expanded in Japan, and the schools became more and more diversified. The unique aesthetic and unconventional visual effects of the visual system have become a bright color in the Japanese music industry, winning the favor of countless fans with its great influence on the Japanese rock and roll industry. Lunaser, Maris M, Dylan Gray ... The emerging Vision Rock not only reached a high level in musicality, but also integrated his personality into modeling and dress, showing deep thoughts beyond the musical category. This makes the visual system occupy an unshakable position in the Japanese music industry. Similarly, in the early 1980s, Europe and America also led the visual dress in Gorgeous Rock to another aspect, with absurd, weird and even horrible and disgusting shapes. Visual rock represented by KISS, ALICECOOPER, MARILYNMANSON and SLIPKNOT. It was developed one after another, and later it was also called shock rock.
Japanese VR bands also have many music categories:
The first is the heavy metals headed by X and Luna Sea! This form of music appeared in early VR bands! Nowadays, bands rarely take this route because of the high technical requirements for singers and performers ~ ~ Second, GLAY and rainbow-dominated pop rock! Many fans don't classify them as VR because they left VR very early, but they are indeed successful examples of transformation from VR! Now, Gray's younger brother Lucifer is very successful. In just one year, he has stepped onto the stage of the budokan, and his future is limitless ~ ~ Third, the Baroque and Gothic style advocated by Maris M! MM can be said to be a special case of VR! I changed three lead singers in a row, but careful fans will find that the voices of the three lead singers are very similar and full of classical flavor. This may be the greatness of MANA. She can always find a lead singer suitable for MM music, and she can't help wondering if MANA prefers this kind of voice. The younger generation of Raphael followed a similar musical style, except that MM was more baroque, while Raphael was more gothic. Unfortunately 19-year-old guitarist and captain KAZUKI died in 2000 ~
Vibration reduction-reducing jitter and anti-shake technology.
Vibration reduction through the adjustment of a group of magnetic suspension lenses, built-in gyro and other induction systems, correct the bending light when shaking, maximize the clarity of the picture, and improve the three-speed shutter. This technology is a boon for beginners. More importantly, VR technology can also correct and reduce the vertical jitter when users horizontally translate and the horizontal jitter when they vertically translate, making the picture more dynamic and expressing the author's intention more clearly. An optical technology that can improve the image blur caused by camera vibration, and can shoot quickly when the shutter speed is reduced by three levels, so that the telephoto lens can take clear photos. When the photographer shoots a moving object, the system even automatically detects the movement of the camera. VR operation can only be performed on individual Nikon cameras. Nikon original lens can provide unique defocus image control function. There is an out-of-focus positioning rotating ring at the front of the lens. The aperture values on the ring range from F2 to F5.6***4, which are marked on the left and right of the ring respectively, and are denoted by R and F. This is a special fixed-focus lens. Its biggest feature is that it allows fuzzy control of the background or foreground of a specific subject to obtain the best out-of-focus imaging, which is very valuable when shooting portraits, and it can also help us control all parts of the photo according to what we want to express.