Traditional Culture Encyclopedia - Photography and portraiture - What is rendering?
What is rendering?
Question 2: What does rendering mean in general software? Simply put, it is the process of synthesizing various effects after editing into finished products.
For example, a video work, a series of effects such as coloring, switching, sequence and action can only become a video file after rendering.
Question 3: What is the rendering technology? Normal rendering is based on graphics card (hardware), and virtual rendering is based on traditional graphics card. A virtual graphics card rendering system is established on the computer to improve the effect that graphics card rendering cannot achieve physically. The so-called virtual rendering supports HDR (High Dynamic Illumination Rendering Technology), Shader Model 3.0, halo effect and other visual effects! However, the requirements for physical graphics cards are also very high, basically above 6200.
Question 4: What does rendering mean? When making format files, include. 3D and. DWG, the computer records vertex information, and they will not become actual pixels. Without 3dmax, the software computing environment such as cad CAD cannot be browsed. And at this time, the material information and light and shadow information are calculated independently. In order to integrate them into pixel information, you need to render. These bits and pieces of information will be calculated into a picture, or a continuous animation in which a pixel forms a plane.
In video processing, what you do is often similar to adding a mask, such as brightening, lightening, cutting blue and cutting green. The original film hasn't really changed, so you render it to reflect your processing results on the original film. . . .
Lightscape is an excellent lighting rendering software, and its unique calculation method of light energy transfer and unique performance produced by material properties are completely different from other rendering software.
Lightscape is an advanced lighting simulation and visual design system, which is used for accurate lighting simulation and flexible and convenient 3D model visual design. Lightscape is the only rendering software in the world with light and shadow tracking technology, light energy transmission technology and holographic technology. It can accurately simulate the propagation of diffuse reflection light in the environment and obtain direct and indirect diffuse reflection light; Users can get real and natural design effects without accumulating rich practical experience. LIGHTSCAPE can easily use a series of interactive tools for radiosity processing, light and shadow tracking and result processing. LIGHTSCAPE3.2 is the first updated version of LIGHTSCAPE after being acquired by AUTODESK. Lightscape has now been merged into 3DMAX.
VRay is a high-quality rendering software jointly produced by chaosgroup and asgvis, which was promoted by Manheng Company in China. VRay is the most popular rendering engine in the industry at present. Based on the V-Ray kernel, there are many versions such as VRay for 3ds max, Maya, Sketchup, Rhino, etc. To provide high-quality pictures and animation rendering for excellent 3D modeling software in different fields. In addition, VRay can also provide a separate rendering program, which is convenient for users to render various pictures.
Hope to adopt!
Question 5: What exactly does rendering do? Rendering is to render a solid model into a realistic effect by giving it materials, lighting, environment and other factors. Commonly used renderers are vray, keyshot, MAX, C4D, etc.
Question 6: What does rendering mean? There are many kinds of rendering, such as the rendering of three-dimensional model making and the post-output rendering of post-synthesis picture and video.
What we generally call rendering refers to the ray rendering of the three-dimensional part.
Rendering is called Render in English, and some people call it coloring, but generally Shade is called coloring and Render is called rendering. Because rendering and shading are two completely different concepts in 3D software, although their functions are similar, they are different. Shade is a display scheme, which generally appears in the main window of 3D software. Like the wireframe of 3D model, it plays an auxiliary role in observing the model. Obviously, the coloring mode makes it easier for us to understand the structure of the model than the wireframe mode, but this is just a simple display, which is called shading in digital images. In advanced 3D software like Maya, you can also use Shade to display simple lighting effects, shadow effect and surface texture effect. Of course, high-quality coloring effects need the support of professional 3D graphics cards, which can accelerate and optimize the display of 3D graphics. However, no matter how optimized, the displayed three-dimensional graphics can not be turned into high-quality images. This is because Shade uses a real-time display technology, and due to the speed limitation of hardware, it can't feedback the ray tracing effects such as reflection and refraction in the scene in real time. In practical work, we often output models or scenes as image files, video signals or movie films, which have to go through rendering programs.
Question 7: What does XuàNR?n mean? When used as a verb, it refers to the practice of drawing Chinese paintings with ink or light colors to enhance the artistic effect. When used as an adjective, it refers to an exaggerated description or a feeling of forgetting troubles, being happy together and being intoxicated by a happy atmosphere. Others also refer to rendering in film and animation production.
Chinese painting techniques
Rendering "rendering" painting method comes from a kind of paper used, called "Xuan paper". When painting on "raw rice paper", if ink drips on it, natural irregular faint ink marks will penetrate instantly, or when painting on paper with a brush dipped in ink, the length of time the pen tip stays on rice paper and the contact amount between the pen tip and the pen body make the ink move to the edge, resulting in different ink diffusion effects. This phenomenon is called "rendering" painting.
Raw rice paper has strong water absorption, and it is easy to produce rich Mo Yun changes. By splashing and accumulating ink, you can collect water and dilute ink, and achieve the artistic effect of leaving ink. Used for freehand brushwork. What students pursue in painting is this "changeable" interest in ink, which is determined when they put pen to paper, and ink permeates quickly, which is not easy for unskilled people to master. It is this magical variability that has attracted countless celebrities and masters from ancient times to the present to make unremitting explorations in the pursuit of Mo Yun and change, and never stopped.
ancient chinese translation
In the narrative of rendering, the environment and characters in the article are described and compared by means of rendering, so as to strengthen the atmosphere and deepen the theme. Rendering is a traditional technique of Chinese painting, which usually emphasizes rendering in some places to make a certain aspect of the image more prominent. Used in artistic creation to express positive and intentional description. For example, Bai Letian's Pipa Trip (Part II) shows the beauty of music by describing and reproducing the pipa sound and its various performances. Zhang's "Moonlit Night on the Spring River" depicts the scenery of moonlit night on the Spring River, reveals his sadness, and expresses his short-lived feelings and exploration of the universe. For example, Du Fu's quatrains: two orioles sing green willows, and a row of egrets go up to the sky. My window framed the snow-covered western hills. My door often says "goodbye" to ships sailing eastward. The author emphasizes the newly grown willow branches, paired orioles, free egrets and blue sky. Four bright colors are fresh and bright, forming a gorgeous picture. Color rendering can convey the feeling of happiness. In short, rendering is to describe things in a positive way and pursue pen and ink.
Rendering process
First of all, the camera should be positioned in a three-dimensional scene, which is the same as real photography. Generally speaking, 3D software has provided four default cameras, that is, four main windows in the software, which are divided into top view, front view, side view and perspective view. Most of the time, we render perspective views, not other views. The perspective camera basically follows the principle of real camera, so the result we see will be as three-dimensional as the real three-dimensional world. Next, in order to reflect the sense of space, the renderer should do some "special" work, that is, decide which objects are in front, which objects are behind and which objects are blocked. The sense of space cannot be perfectly reproduced only by the occlusion of objects. Many beginners only pay attention to the shaping of three-dimensional sense, but ignore the sense of space. You should know that the sense of space has a lot to do with the attenuation of light source, the fog in the environment and the effect of depth of field.
After the rendering program obtains the range to be rendered through the camera, it needs to calculate the influence of the light source on the object, which is the same as the real world. Many 3D softwares have default light sources, otherwise we can't see the coloring effect in perspective, let alone rendering. So the rendering program is to calculate the influence of each light source we add to the scene on the object. Different from the light sources in the real world, rendering programs often have to calculate a large number of auxiliary light sources. In the scene, some light sources will illuminate all objects, while some light sources only illuminate one object, which makes the original simple things complicated again. After that, do you use depth mapping shadow or ray tracing shadow? This usually depends on whether transparent objects are used in the scene to calculate the shadow cast by the light source. In addition, after using the surface light source, the rendering program has to calculate a special kind of shadow-soft shadow (only ray tracing can be used). If the light source in the scene uses light source special effects, the rendering program will also spend more system resources to calculate the results of special effects, especially the volume light, which is also commonly known as light fog, will occupy a lot of system resources, so it must be paid attention to when using it.
After that, the rendering program will also calculate the surface color of the object according to its material ... >>
Question 8: What is the renderings? It means that you paste the edited model map with materials, lighting and other effects, and finally generate a physical effect map.
Question 9: What is the rendering technique of the text? In narrative writing, the environment and characters in the article are described and compared by means of rendering, so as to strengthen anger and deepen the theme.
There are two common rendering methods:
(1) Repetition: Use the same or similar sentences repeatedly to express the feelings of * * * and highlight the theme, such as "Premier Zhou, where are you".
(2) Contrast: Describe the environment or specific atmosphere, and express some emotions of the characters. This is the description of the winter scenery of hometown at the beginning of Lu's hunger novel "Hometown". Such an environment and atmosphere have played a powerful role in rendering the sad psychology of the characters and the theme of the works.
Question 10: What is graphic rendering? Rendering pipeline, also known as rendering pipeline, is an independent parallel processing unit for processing graphics signals inside the display chip. The function of vertex pipeline in GPU is to process geometric data and project 3D data onto 2D screen. Borrow a simple example from a netizen to illustrate the role of vertex pipeline and pixel rendering pipeline. When a painter paints, he needs to draw the outline of the person or thing he is painting, which we call "composition" here; Then we color it according to the light, which we call "rendering" here. Vertex pipeline and pixel rendering pipeline play these two roles. Vertex pipeline and engine are responsible for drawing "outline and frame", while pixel rendering pipeline and engine are responsible for coloring the drawn "outline and frame" according to factors such as illumination to form a complete graph. Rendering pipeline is directly related to the rendering performance of graphics cards.
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