Truevision TGA

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{{Infobox file format | name = Truevision TGA | extension = .tga | mime = | owner = Truevision Inc | creatorcode = | genre = Raster Image file formats | containerfor = | containedby = | extendedfrom = | extendedto = }} Truevision TGA is a raster graphics file format. It was the native format of Truevision Inc.'s TARGA boards, which were some of the first graphic cards for IBM-compatible PCs to support truecolor display.

TGA files commonly have the extension ".tga" on PC DOS/Windows systems, and ".tpic" on older Macintosh systems (Mac OS X uses the .tga extension). The format can store image data with 1–32 bits of precision per pixel. Color data can be color-mapped, or in directcolor or truecolor format; optionally, a lossless RLE compression can be employed.

The TGA file format was originally defined by Truevision Inc.'s Brad Pillow in 1984. Several enhancements such as "postage stamps" (better known as thumbnails), an alpha channel, gamma value, and textual metadata were introduced in 1989.

Despite its limited colour-depth, TGA is still used extensively throughout the animation industry.

BeOS creates screenshot files in TGA format. POVray engines natively uses TGA as format for textures and height maps.

External links

• Truevision's TGA file format specification
• Truevision's TGA file format specification - cover pages and table of contents
• TGA specification - previous version of the file format taken from the Truevision Technical Guide
• Creating TGA Image files - a description of the TGA format
• Truevision TGA Specification 2.0Template:Compu-graphics-stub

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