1 # GLEW - The OpenGL Extension Wrangler Library
3 ![](http://glew.sourceforge.net/glew.png)
5 http://glew.sourceforge.net/
7 https://github.com/nigels-com/glew
9 [![Build Status](https://travis-ci.org/nigels-com/glew.svg?branch=master)](https://travis-ci.org/nigels-com/glew)
10 [![Gitter](https://badges.gitter.im/nigels-com/glew.svg)](https://gitter.im/nigels-com/glew?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
11 [![Download](https://img.shields.io/sourceforge/dm/glew.svg)](https://sourceforge.net/projects/glew/files/latest/download)
15 Current release is [2.1.0](https://sourceforge.net/projects/glew/files/glew/2.1.0/).
16 [(Change Log)](http://glew.sourceforge.net/log.html)
19 [ZIP](https://sourceforge.net/projects/glew/files/glew/2.1.0/glew-2.1.0.zip/download) or
20 [TGZ](https://sourceforge.net/projects/glew/files/glew/2.1.0/glew-2.1.0.tgz/download).
22 Windows binaries for [32-bit and 64-bit](https://sourceforge.net/projects/glew/files/glew/2.1.0/glew-2.1.0-win32.zip/download).
26 Snapshots may contain new features, bug-fixes or new OpenGL extensions ahead of tested, official releases.
30 It is highly recommended to build from a tgz or zip release snapshot.
31 The code generation workflow is a complex brew of gnu make, perl and python, that works best on Linux or Mac.
32 For most end-users of GLEW the official releases are the best choice, with first class support.
38 ##### Install build tools
40 Debian/Ubuntu/Mint: `$ sudo apt-get install build-essential libxmu-dev libxi-dev libgl-dev libosmesa-dev`
42 RedHat/CentOS/Fedora: `$ sudo yum install libXmu-devel libXi-devel libGL-devel`
50 Targets: `all, glew.lib (sub-targets: glew.lib.shared, glew.lib.static), glew.bin, clean, install, uninstall`
52 Variables: `SYSTEM=linux-clang, GLEW_DEST=/usr/local, STRIP=`
54 _Note: may need to make **auto** folder_
58 *CMake 2.8.12 or higher is required.*
60 ##### Install build tools
62 Debian/Ubuntu/Mint: `$ sudo apt-get install build-essential libXmu-dev libXi-dev libgl-dev cmake`
64 RedHat/CentOS/Fedora: `$ sudo yum install libXmu-devel libXi-devel libGL-devel cmake`
72 | Target | Description |
73 | ---------- | ----------- |
74 | glew | Build the glew shared library. |
75 | glew_s | Build the glew static library. |
76 | glewinfo | Build the `glewinfo` executable (requires `BUILD_UTILS` to be `ON`). |
77 | visualinfo | Build the `visualinfo` executable (requires `BUILD_UTILS` to be `ON`). |
78 | install | Install all enabled targets into `CMAKE_INSTALL_PREFIX`. |
79 | clean | Clean up build artifacts. |
80 | all | Build all enabled targets (default target). |
82 | Variables | Description |
83 | --------------- | ----------- |
84 | BUILD_UTILS | Build the `glewinfo` and `visualinfo` executables. |
85 | GLEW_REGAL | Build in Regal mode. |
86 | GLEW_OSMESA | Build in off-screen Mesa mode. |
87 | BUILD_FRAMEWORK | Build as MacOSX Framework. Setting `CMAKE_INSTALL_PREFIX` to `/Library/Frameworks` is recommended. |
93 Use the provided Visual Studio project file in build/vc12/
95 Projects for vc6 and vc10 are also provided
99 Available from [Mingw](http://www.mingw.org/)
101 Requirements: bash, make, gcc
104 $ mingw32-make install
105 $ mingw32-make install.all
107 Alternative toolchain: `SYSTEM=mingw-win32`
111 Available from [Msys2](http://msys2.github.io/) and/or [Mingw-w64](http://mingw-w64.org/)
113 Requirements: bash, make, gcc
115 $ pacman -S gcc make mingw-w64-i686-gcc mingw-w64-x86_64-gcc
120 Alternative toolchain: `SYSTEM=msys, SYSTEM=msys-win32, SYSTEM=msys-win64`
124 `glewinfo` is a command-line tool useful for inspecting the capabilities of an
125 OpenGL implementation and GLEW support for that. Please include `glewinfo.txt`
126 with bug reports, as appropriate.
128 ---------------------------
130 ---------------------------
133 Reporting capabilities of pixelformat 3
134 Running on a Intel(R) HD Graphics 3000 from Intel
135 OpenGL version 3.1.0 - Build 9.17.10.4229 is supported
142 glCopyTexSubImage3D: OK
143 glDrawRangeElements: OK
151 A Unix or Mac environment is needed for building GLEW from scratch to
152 include new extensions, or customize the code generation. The extension
153 data is regenerated from the top level source directory with:
157 An alternative to generating the GLEW sources from scratch is to
158 download a pre-generated (unsupported) snapshot:
160 https://sourceforge.net/projects/glew/files/glew/snapshots/
162 Travis-built snapshots are also available:
164 https://glew.s3.amazonaws.com/index.html
168 GLEW is currently maintained by [Nigel Stewart](https://github.com/nigels-com)
169 with bug fixes, new OpenGL extension support and new releases.
171 GLEW was developed by [Milan Ikits](http://www.cs.utah.edu/~ikits/)
172 and [Marcelo Magallon](http://wwwvis.informatik.uni-stuttgart.de/~magallon/).
173 Aaron Lefohn, Joe Kniss, and Chris Wyman were the first users and also
174 assisted with the design and debugging process.
176 The acronym GLEW originates from Aaron Lefohn.
177 Pasi Kärkkäinen identified and fixed several problems with
178 GLX and SDL. Nate Robins created the `wglinfo` utility, to
179 which modifications were made by Michael Wimmer.
181 ## Copyright and Licensing
183 GLEW is originally derived from the EXTGL project by Lev Povalahev.
184 The source code is licensed under the
185 [Modified BSD License](http://glew.sourceforge.net/glew.txt), the
186 [Mesa 3-D License](http://glew.sourceforge.net/mesa.txt) (MIT) and the
187 [Khronos License](http://glew.sourceforge.net/khronos.txt) (MIT).
189 The automatic code generation scripts are released under the
190 [GNU GPL](http://glew.sourceforge.net/gpl.txt).