Message-ID: <352B3124.64F7@acadia.net>
Date: Wed, 08 Apr 1998 04:11:16 -0400
From: Scott Warner <swarnerx3 AT acadia DOT net>
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To: broadview AT earthlink DOT net
CC: djgpp AT delorie DOT com
Subject: Re: What is Z-sorting?
References: <352B0463 DOT FA9FC86F AT earthlink DOT net>
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Steven S. Falls wrote:
> 
>     Lately I have been hering about somthing called Z-Sorting. What is
> it?
>         Thnaks,
>                 -Ardy
>             http://www.addr.com/~ardy/

Z-buffering is an algorithm used to remove hidden surfaces when
displaying 3d surfaces.  The x and y coordinates (plotted on the screen)
and the z coordinate (projected into the screen) is placed in a buffer. 
Through sorting of these z coordinates hidden surfaces can be removed
for fast display.  As I understand it, z-buffering is built into some 3d
accelerator boards.