Gas Chamber

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Gas chamber

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Pixel vs. Texel

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Digital images are composed of dots arranged on a grid. Each of these little dots is called a pixel, a contraction of the term 'picture element'. The same is true of the texture graphics that get drawn onto polygons in 3D games; a Texel simply a pixel within a texture image. Pixel is the fundamental unit of screen space. Texel, or texture element (also texture pixel) is the fundamental unit of texture space. Textures are represented by arrays of Texels, just as pictures are represented by arrays of pixels. When texturing a 3D surface (a process known as texture mapping) the renderer maps Texels to appropriate pixels in the output picture. Between, it is more common to use fill rate instead of write speed and you can easily find all required information, since this terminology is quite old and widely-used. As part of their performance specifications, graphics cards often describe how many Texels they can process each second. This is their texture fill rate: the num...
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