A very simple extension was made to what was already in use, and contained information on width, height, pixel depth, an associated color map and image origin. The file format was created and implemented by Brad Pillow (EPICenter) and Bryan Hunt (EPICenter) and was developed in response to this need for a less board specific file format. It was later determined by Alan Wlasuk (then head of EPICenter), Brad Pillow (EPICenter) and Steven Dompier (Island's president) that a more codified file format was needed. The file extensions ".vda" and ".icb" implied information about the board specific data contained. What later became Truevision was the result of a leveraged employee buyout from AT&T in 1987.ĮPICenter's first two cards, the VDA (video display adapter) and ICB (image capture board), used the first incarnations of the TGA file format. AT&T EPICenter was an internal spin-off of AT&T created to market new technologies AT&T had developed for color frame buffers. The TGA file format was originally defined and specified by AT&T EPICenter with feedback from Island Graphics Inc in 1984. This type of compression performs poorly for typical photographic images, but works acceptably well for simpler images, such as icons, cartoons and line drawings. Image data may be stored raw, or optionally, a lossless RLE compression similar to PackBits can be employed. Color data can be color-mapped, or in direct color or truecolor format. The format itself permits any pixel bit depth up to 255, of which up to 15 bits can be dedicated to an alpha channel however, the only bit depths supported in practice were 8, 15, 16, 24, or 32, where the 16 and 32-bit formats used 1 and 8 bits respectively for the alpha channel.
Wotja ime file format Pc#
TGA files commonly have the extension ".tga" on PC DOS/ Windows systems and macOS (older Macintosh systems use the "TPIC" type code). TARGA is an acronym for Truevision Advanced Raster Graphics Adapter TGA is an initialism for Truevision Graphics Adapter.
Wotja ime file format professional#
This family of graphic cards was intended for professional computer image synthesis and video editing with PCs for this reason, usual resolutions of TGA image files match those of the NTSC and PAL video formats. It was the native format of TARGA and VISTA boards, which were the first graphic cards for IBM-compatible PCs to support Highcolor/ truecolor display. Truevision TGA, often referred to as TARGA, is a raster graphics file format created by Truevision Inc.
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