There is a standard Application Binary Interface defined for OpenGL on Linux that gives application compatability for OpenGL for a range of drivers. Supporting OpenGL on Linux involves using GLX extensions to the X Server. Graphics on Linux is almost exclusively implemented using the X windows system. The system will redirect you to the default System32 directory automatically this is also true for the 32 bits versions of Windows. To find your Windows’ System32 directory, go to: Start, Run… and type in %WINDIR%\System32. WOW means Windows On Windows which is a backwards-compatibility layer. It contains the OpenG元2.dll which is actually a 64 bit dll.įor 32 bit programs, Windows detects the exe as a 32 bit program and instead of using System32 files, it uses Windows\SysWOW64 which actually contains the 32 bit DLLs. On both of these Operating Systems, Windows\System32 contains all the 64 bit DLLs. If you are running the 64 bit version of Windows Vista or perhaps you are running Windows XP 圆4, you might be wondering if there is a OpenGL64.dll file. Once again, by installing the latest version of the video driver, you can get hw acceleration, you avoid the Direct3D wrapper, you get the maximum version of GL supported by your GPU. Windows Vista supports OpenGL version 1.4 as a Direct3D wrapper. On Windows 2003, you aren’t suppose to use it as a desktop machine, but it is similar to Win 2000/XP. Since performance will be lousy, installing drivers is a good idea. Windows XP supports OpenGL version 1.1 as a Direct3D wrapper in OpenG元2.dll. There is no support for hardware acceleration therefore installing drivers is necessary. Windows 98, Me, 2000 support OpenGL version 1.1 as a software rasterizer implemented in OpenG元2.dll. Other libraries like GLUT, freeGLUT, QT, etc are not part of the OS. You can get precompiled lib from vmelkon’s GLU The current version is 1.3. You can get a GLU’s source code from MESA3D. Updated DLL should be placed in your program’s folder. GLU is also included in the system folder as glu32.dll This is also a system component. Some sites also distribute beta versions of graphics drivers, which may give you access to bug fixes or new functionality before an official driver release from the manufacturer: The second reason to install new drivers is to have the latest version of GL on your system (the max version supported by your GPU): In order to get hardware acceleration, you will need to install the latest drivers for your graphics card. The standard Windows OpenG元2.dll library alone will not provide you with hardware acceleration for OpenGL. This also means that you do not have to ship a copy of the library with your application since it will already be available on the system. The filename is OpenG元2.dll and is either in WINDOWS\SYSTEM, WINNT\SYSTEM32 or WINDOWS\SYSTEM32. DO NOT modify or copy OpenG元2.dll from one OS to another. Remember that GL is a system component on Windows. If you are running Windows 98/Me/NT/2000/XP/2003/Vista, the OpenGL library has already been installed on your system. Basic to basic in Open GL 3D Programing : Day 1 > Introduction to OpenGL
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