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Tesselation : A technique to construct a surface by a small set of figures which fit together. They are drawn repeatedly over the entire plane leaving no gaps.
Texture Map : A bitmap used to texture a 3D polygon model, including adjustments for perspective correction, where vertices of the object model are mapped onto the 2D texture bitmap. In addition to color and brightness, textures may also be encoded with the properties of transparency and specular reflectivity. This kind of texture may also be procedural in nature.
A possible side-effect of texture mapping occurs unless the renderer can apply texture maps with correct perspective. Perspective-corrected texture mapping involves an algorithm that translates texels, or pixels from the bitmap texture image, into display pixels in accordance with the spatial orientation of the surface.
TGA : (Targa) A photorealistic graphics file format originally designed for systems with a Truevision display adapter. It supports 1 to 32 bit images, and professional features like an alpha (mask) channel, gamma settings and a built-in thumbnail image.
Thumbnail : A smaller representation of a larger image.
TIFF : Acronym for Tag Image File Format; the graphics file format first released by Aldus Corporation in 1986. TIFF is the standard file format used for most digital imaging programs. TIFF is a highly extensible format that allows image data to be tagged with additional information through an image file directory (IFD) which contains header-type information without actually being a part of the file's header. TIFF can be used for black-and-white, grayscale, RGB, and CMYK images. TIFF can be uncompressed or may use any of a variety of compression methods, though TIFF most commonly uses LZW compression.
Torus : A primitive that looks like a donut.
Transparency : The ratio of the amount of light passing through a material to the amount of light incident on the material.
True Color : The common name for 24-bit color.
TWAIN : An industry wide standard for devices such as scanner and digital cameras to interface with software programs.