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Most graphics editing programs, such as Adobe Photoshop and GIMP, allow users to modify the basic blend modes, for example by applying different levels of opacity to the top "layer". The top "layer" is not necessarily a layer in the application; it may be applied with a painting or editing tool.
XCF, short for eXperimental Computing Facility, [1] is the native image format of the GIMP image-editing program. It saves all of the data the program handles related to the image, including, among others, each layer, the current selection, channels, transparency, paths and guides.
GIMP's native format XCF is designed to store all information GIMP can contain about an image; XCF is named after the eXperimental Computing Facility where GIMP was authored. Import and export capability can be extended to additional file formats by means of plug-ins. XCF file size is extended to more than 4 GB since 2.9.6 and new stable tree 2 ...
GTK (formerly GIMP ToolKit [2] and GTK+ [3]) is a free software cross-platform widget toolkit for creating graphical user interfaces (GUIs). [4] It is licensed under the terms of the GNU Lesser General Public License, allowing both free and proprietary software to use it. It is one of the most popular toolkits for the Wayland and X11 windowing ...
G'MIC (GREYC's Magic for Image Computing) is a free and open-source framework for image processing. It defines a script language that allows the creation of complex macros. Originally usable only through a command line interface, it is currently mostly popular as a GIMP plugin, [2] and is also included in Krita.
To emphasize: this is only one possible rule for transparency. If working with transparency, check the rules in use for your situation. The color at a point, where color G1 and G2 are to be combined, is ( G1 + G2 ) / 2. Some consequences of this are: Where the colors are equal, the result is the same color because ( G1 + G1 ) /2 = G1.
The A-buffer is a computer graphics technique introduced in 1984 which stores per-pixel lists of fragment data (including micro-polygon information) in a software rasteriser, REYES, originally designed for anti-aliasing but also supporting transparency. More recently, depth peeling [1] in 2001 described a hardware accelerated OIT technique ...