README.TXT

Using Vertex Arrays for Improved Performance 
 
 
The VASPHERE sample demonstrates the use of vertex-arrays, available 
in OpenGL 1.1. A significant performance improvement can be gained 
if objects in the scene are drawn using vertex-arrays instead of 
other primitives. In this sample, a lit revolving sphere is drawn 
using one of the following methods 
 
 - Vertex-arrays 
 - Triangles 
 - Triangle-Strips 
 
In addition, either immediate mode or display-list mode are used. Cycle 
through the three primitives by pressing the space-bar, and toggle between 
immediate-mode and display-list mode by pressing the 'd' key. 
The window title shows the triangle/sec figure. 
 
Note 
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VASPHERE will not run on an implementation of OpenGL version 1.0. The OpenGL 
for Windows 95 redistributables included on the Win32 SDK are an 
implementation of version 1.0.