installation and setup
These directories contain extension libraries that are needed to run OpenGL with the X
Server.
/opt/graphics/common/lib/hpux32
/opt/graphics/common/lib/hpux64
These directories contain run time shared libraries that are needed to run OpenGL.
The other libraries you will see in these directories are all drivers for specific graphics devices.
All libdd... are loaded automatically at execution time, contingent upon device type.
2–4
OpenGL implementation guide