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z-buffer in Technology

An array used to store the maximum Z coordinate of any feature plotted at a given (X, Y) location on the screen, used for hidden line removal in a 2D rendering of a 3D scene. The Z axis is perpendicular to the screen with values increasing toward the viewer so that any point whose Z coordinate is less than the corresponding Z-buffer value will be hidden behind some feature which has already been plotted.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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