Rendering is the process of generating an image from a model (or models in what collectively could be called a scene file), by means of computer programs. Also, the results of such a model can be called a rendering. A scene file contains objects in a strictly defined language or data structure; it would contain geometry, viewpoint, texture, lighting, and shading information as a description of the virtual scene. The data contained in the scene file is then passed to a rendering program to be processed and output to a digital image or raster graphics image file. The term "rendering" may be by analogy with an "artist's rendering" of a scene. Though the technical details of rendering methods vary, the general challenges to overcome in producing a 2D image from a 3D representation stored in a scene file are outlined as the graphics pipeline along a rendering device, such as a GPU. A GPU is a purpose-built device able to assist a CPU in performing complex rendering calculations. If a scene is to look relatively realistic and predictable under virtual lighting, the rendering software should solve the rendering equation. The rendering equation doesn't account for all lighting phenomena, but is a general lighting model for computer-generated imagery. 'Rendering' is also used to describe the process of calculating effects in a video editing program to produce final video output.
Rendering is one of the major sub-topics of 3D computer graphics, and in practice is always connected to the others. In the graphics pipeline, it is the last major step, giving the final appearance to the models and animation. With the increasing sophistication of computer graphics since the 1970s, it has become a more distinct subject.
Rendering has uses in architecture, video games, simulators, movie or TV visual effects, and design visualization, each employing a different balance of features and techniques. As a product, a wide variety of renderers are available. Some are integrated into larger modeling and animation packages, some are stand-alone, some are free open-source projects. On the inside, a renderer is a carefully engineered program, based on a selective mixture of disciplines related to: light physics, visual perception, mathematics and software development.
In the case of 3D graphics, rendering may be done slowly, as in pre-rendering, or in real time. Pre-rendering is a computationally intensive process that is typically used for movie creation, while real-time rendering is often done for 3D video games which rely on the use of graphics cards with 3D hardware accelerators.
Other articles related to "renders, render":
... There are also a wide variety of premixed renders for different situations ... Acrylic premixed renders have superior water resistance and strength ... Some of these premixed acrylic renders have a smoother complexion than traditional renders ...
... adjudicated insanity which renders the instrument void 5 ... infancy which renders the instrument voidable or void 6 ... illegality which renders the instrument void ...
... Monocouche renders are a type of decorative finish applied to the outside of buildings to provide both decoration and weather protection ... The French term monocouche has been adopted by the European render industry, in an attempt to distinguish modern renders and their application methods from those of traditional renders and their application methods ... It refers to the development of more advanced render formulations that can be applied in one coat to form and cure as one monolithic layer on the elevation of a building ...
... A gray render is a big, bulky, bulbous creature which stands 9 feet tall, despite a hunched posture, and 4 feet wide and long ... Gray renders are never found in groups, and the only times they are not solitary is when parents carry their young ... Gray renders have the interesting habit of picking a group of other creatures native to its own home, and then protecting and serving that group of ...
Famous quotes containing the word renders:
“In reality, in love there is a permanent suffering which joy neutralizes, renders virtual, delays, but which can at any moment become what it would have become long earlier if one had not obtained what one wanted, atrocious.”
—Marcel Proust (18711922)
“The service a man renders his friend is trivial and selfish, compared with the service he knows his friend stood in readiness to yield him, alike before he had begun to serve his friend, and now also. Compared with that good-will I bear my friend, the benefit it is in my power to render him seems small.”
—Ralph Waldo Emerson (18031882)
“The whole book by noble gestures and inclinations renders many words unnecessary.”
—Henry David Thoreau (18171862)