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                    OpenGL Lesson 48:  ArcBall Rotation
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  Authors Name: Terence J. Grant

  Disclaimer:

  This program may crash your system or run poorly depending on your
  hardware.  The program and code contained in this archive was scanned
  for virii and has passed all test before it was put online.  If you
  use this code in project of your own, send a shout out to the author!

   OpenGL ES CM 1.0 port by Mike Gorchak <mike@malva.ua>, <lestat@i.com.ua>

   Requirements:

   - OpenGL ES headers and libraries 
   - SDL 1.3 headers and libraries
   - gcc (any other ANSI C compiler should do it too; I used gcc 4.2.4)

   Keyboard shortcuts:
   - press ESC to exit.

   Mouse:
   - press right mouse button to restore scene view.
   - press left mouse button and move mouse to rotate the scene.

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                        NeHe Productions 1997-2004
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