Famous Graphics Chips: Geometry Engine

Although not really a graphics chip in that it directly manipulated any pixels, the Geometry Engine introduced in 1981 was a breakthrough in VLSI of critical mathematics functions used for graphics. The Geometry Engine was a special-purpose processor with a four-component vector, floating-point processor for three basic operations in computer graphics: matrix transformations, clipping, and mapping to output device coordinates. ...

Jon Peddie

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