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The term seems to have been introduced from cinematography and is now widely applied to 3D modeling and rendering, especially in the development of 3D video games. [citation needed] In volumetric lighting, the light cone emitted by a light source is modeled as a transparent object and considered as a container of a "volume".
In addition to the '2' value after 48 to specify a Red-Green-Blue format (and the '5' above for a 0-255 indexed color), there are alternatives of '0' for implementation-defined and '1' for transparent - neither of which have any further parameters; '3' specifies colors using a Cyan-Magenta-Yellow scheme, and '4' for a Cyan-Magenta-Yellow-Black ...
The first line is either the ASCII text "PF", for a color file, or "Pf", for a grey-scale file. The next ASCII text line contains the width and height, separated by the space character hex 20 or sometimes with hex 0A (resulting in four lines). After each line a white space character hex 0A is written and not the Windows/DOS CR/LF combination.
Irrlicht (pronounced [ˈɪʁlɪçt] in German) is an open-source game engine written in C++.It is cross-platform, officially running on Windows, macOS, Linux and Windows CE and due to its open nature ports to other systems are available, including FreeBSD, Xbox (up to Irrlicht version 1.8.1), PlayStation Portable, [1] Symbian, [2] iPhone, [3] AmigaOS 4, [4] Sailfish OS via a Qt/QML wrapper, [5 ...
Recursive flood fill with 4 directions. Flood fill, also called seed fill, is a flooding algorithm that determines and alters the area connected to a given node in a multi-dimensional array with some matching attribute.
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an image that is not rectangular can be filled to the required rectangle using transparent surroundings; the image can even have holes (e.g. be ring-shaped) in a run of text, a special symbol for which an image is used because it is not available in the character set, can be given a transparent background, resulting in a matching background.
In computer graphics, pixels encoding the RGBA color space information must be stored in computer memory (or in files on disk). In most cases four equal-sized pieces of adjacent memory are used, one for each channel, and a 0 in a channel indicates black color or transparent alpha, while all-1 bits indicates white or fully opaque alpha.