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Compositor
Compositor may refer to: * Compositor (typesetting), a person or machine which arranged movable type for printing ** Paige Compositor, a device developed to replace manual compositors, which was a commercial failure * Compositing software, used in film post-production for compositing, special effects, and color correction * Compositing window manager A compositing window manager, or compositor, is a window manager that provides applications with an off-screen data buffer, buffer for each window. The window manager Compositing, composites the window buffers into an image representing the screen ..., a software process which composites off-screen buffers for each open window to create a screen image ** Quartz Compositor, the display server and window manager in macOS ** Wayland compositor, any computer display server compatible with the Wayland protocol See also * Compositing, combining visual elements from separate sources into a single result. Originally used for a trad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wayland Compositor
Wayland is a communication protocol that specifies the communication between a display server and its clients, as well as a C library implementation of that protocol. A display server using the Wayland protocol is called a ''Wayland compositor'', because it additionally performs the task of a compositing window manager. Wayland is developed by a group of volunteers initially led by Kristian Høgsberg as a free and open-source community-driven project with the aim of replacing the X Window System with a modern, secure simpler windowing system in Linux and other Unix-like operating systems. The project's source code is published under the terms of the MIT License, a permissive free software licence. As part of its efforts, the Wayland project also develops a reference implementation of a Wayland compositor called ''Weston''. Overview The Wayland Display Server project was started by Red Hat developer Kristian Høgsberg in 2008. Beginning around 2010, Linux desktop graphics h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compositor (typesetting)
Typesetting is the composition of text by means of arranging physical ''type'' (or ''sort'') in mechanical systems or ''glyphs'' in digital systems representing ''characters'' (letters and other symbols).Dictionary.com Unabridged. Random House, Inc. 23 December 2009Dictionary.reference.com/ref> Stored types are retrieved and ordered according to a language's orthography for visual display. Typesetting requires one or more fonts (which are widely but erroneously confused with and substituted for typefaces). One significant effect of typesetting was that authorship of works could be spotted more easily, making it difficult for copiers who have not gained permission. Pre-digital era Manual typesetting During much of the letterpress era, movable type was composed by hand for each page by workers called compositors. A tray with many dividers, called a case, contained cast metal '' sorts'', each with a single letter or symbol, but backwards (so they would print correctly). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compositing Window Manager
A compositing window manager, or compositor, is a window manager that provides applications with an off-screen data buffer, buffer for each window. The window manager Compositing, composites the window buffers into an image representing the screen and writes the result into the display memory. Compositing window managers may perform additional processing on buffered windows, applying 2D computer graphics, 2D and 3D computer graphics, 3D animated effects such as Alpha blending, blending, Dissolve (filmmaking), fading, Image scaling, scaling, Rotation (mathematics), rotation, Multi-monitor#Clone mode, duplication, bending and contortion, shuffling, Gaussian blur, blurring, redirecting applications, and Translation (geometry), translating windows into one of a number of Display device, displays and virtual desktops. Computer graphics technology allows for visual effects to be rendered in real time such as drop shadows, live previews, and complex animation. Since the screen is Double b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compositing Software
Digital compositing is the process of digitally assembling multiple images to make a final image, typically for print, motion pictures or screen display. It is the digital analogue of optical film compositing. Mathematics The basic operation used in digital compositing is known as 'alpha blending', where an opacity value, 'α', is used to control the proportions of two input pixel values that end up a single output pixel. As a simple example, suppose two images of the same size are available and they are to be composited. The input images are referred to as the foreground image and the background image. Each image consists of the same number of pixels. Compositing is performed by mathematically combining information from the corresponding pixels from the two input images and recording the result in a third image, which is called the composited image. Consider three pixels; * a foreground pixel, f * a background pixel, b * a composited pixel, c and * α, the opacity value of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz Compositor
Quartz Compositor is the display server (and at the same time the compositing window manager) in macOS. It is responsible for presenting and maintaining rasterized, rendered graphics from the rest of the Core Graphics framework and other renderers in the Quartz technologies family. Overview The bitmap output from Quartz 2D, OpenGL, Core Image, QuickTime, or other process is written to a specific memory location, or ''backing store''. The Compositor then reads the data from the backing stores and assembles each into one image for the display, writing that image to the frame buffer memory of the graphics card. Quartz Compositor only accepts raster data, and is the only process that can directly access the graphics frame buffer. In managing individual windows, Quartz Compositor accepts a bitmap image of the window's contents from its renderer, along with its position. The choice of the renderer is up to the individual application, although most use Quartz 2D. Quartz Compositor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
