ATI X800 User Guide - Page 22
Z-buffer, objects are in front of other 3D objects.
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19 Z-buffer A z-buffer is an area of off-screen memory used to hold "depth" information. For each dot, or pixel, in the display buffer, there is a corresponding dot in the z-buffer which holds the depth (z) value for the display pixel. The depth data helps the ATI accelerator card decide what 3D objects are in front of other 3D objects. The larger the 3D window, the larger the z-buffer is in memory.
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19
Z-buffer
A z-buffer is an area of off-screen memory used to hold “depth”
information. For each dot, or pixel, in the display buffer, there is a
corresponding dot in the z-buffer which holds the depth (z) value for the
display pixel. The depth data helps the ATI accelerator card decide what 3D
objects are in front of other 3D objects.
The larger the 3D window, the larger the z-buffer is in memory.