To install the OpenGL module, please follow these instructions: 1. Update your development environment with the latest OpenGL header and lib files. If you are using a GPU, get the latest drivers from your vendor. Install FreeGLUT (or compatible) - you can find this at http://freeglut.sourceforge.net/. NOTE: Strawberry Perl includes the FreeGLUT library and the binary distributions at http://www.sisyphusion.tk provide the needed FreeGLUT as well. On 32-bit MS Windows, a binary FreeGLUT library is installed automatically by this module if needed. On Mac OS X (Leopard and newer), GLUT is available in the default OpenGL programming environment with sufficient extensions (added by Apple) to support full functionality. On most Linux distributions FreeGLUT is available via their package installers. The 'include' subfolder provided with this module contains headers that this module has been tested with. This module looks for libGL.so, libGLU.so and libglut.so (opengl32.dll, glu32.dll and freeglut.dll on Windows) in the normal places for your OS installation. You may need to symlink libraries from various vendors to the proper place/names. Note: If you will be installing OpenGL::Image, it is recommended, but not required, that you install PerlMagick (6.3.5 or newer) first, as this will dramatically simplify and enhance your ability/performance in loading/saving images/textures via OpenGL::Image - see INSTALL note in the OpenGL::Image module. 2. Run 'perl Makefile.PL' Makefile.PL attempts to detemine your OS and available libs. You can override these defaults by specifying addiional options, shown in square brackets : perl Makefile.PL [verbose] [interface=<XFACE>] [dist=<EXCLUSION SETTING>] The "verbose" option provides additional diagnostic output messages which can be helpful for troubleshooting and bug reports. For the "interface" option, <XFACE> is one of the following strings: FREEGLUT Default window interface GLUT Fallback if FreeGLUT is not available AGL GLUT framework on Mac OS X GLX Legacy X11+GLX, use FreeGLUT instead W32API FreeGLUT and W32API OpenGL on CYGWIN WGL Same as W32API Specifying the interface directly should not be needed except where there is some ambiguity in the available interfaces (i.e. you have FreeGLUT, GLUT, and GLX on your system). If you have FreeGLUT and OpenGL installed, it should just work with the defaults. *Please* let us know if it doesn't. Makefile.PL will attempt to build and run a glversion utility to determine what version and extensions your OpenGL installation supports, and will create an gl_exclude.h header file to exclude APIs your libraries do not support. You can manually edit this file to override excluded extensions. Note: glversion assumes libGL.so and libglut.so (opengl32.dll and freeglut.dll on Windows) - and that it will be run via a GUI window (eg. X11 on Unix). This may impact automated build systems. For building POGL without extension exclusions, use: perl Makefile.PL dist=NO_EXCLUSIONS Note: NO_EXCLUSIONS is the default for Windows; this can be overridden by using the EXCLUSIONS option. To install in non-standard locations, use the INSTALL_BASE option when generating the Makefiles: perl Makefile.PL INSTALL_BASE=BASEPATH where BASEPATH is the path of the directory where you wish the module to be installed (e.g. binary executables in BASEPATH/bin, manual pages in BASEPATH/man, library files in BASEPATH/lib/perl5). Then either set the PERL5LIB environment variable before you run scripts that use the modules/libraries (see perlrun) or in your programs say: use lib 'BASEPATH/lib/perl5'; 3. Run 'make' ('nmake' on Windows, 'dmake' on MinGW) to build OpenGL. 4. Run 'make test' ('nmake test' on Windows, 'dmake test' on MinGW) to test your installation. You must have GLUT installed in order to run this test. You should see a spinning cube with textured surfaces. Press 'q' to quit/complete the test (the test window must have focus). Note: Automated builds will normally fail this test, as it requires the ability to open a GL context (window) and provide user input. 5. If all is well, run 'sudo make install' ('nmake install on Windows', and 'dmake install' with MinGW) to intall the OpenGL module onto your system. 6. It is recommended (though not required) that you also install the OpenGL::Image and OpenGL::Shader modules to enhance POGL's features. Read the included README files for additional notes on your particular platform.