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The OpenGL Extension Wrangler Library
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README.md

GLEW - The OpenGL Extension Wrangler Library

http://glew.sourceforge.net/

https://github.com/nigels-com/glew

Build Status Gitter

Downloads

Current release is 1.13.0. (Change Log)

Sources available as ZIP or TGZ.

Windows binaries for 32-bit and 64-bit.

Recent snapshots

Snapshots may contain new features, bug-fixes or new OpenGL extensions ahead of tested, official releases.

glew-20160131.tgz GLEW 2.0.0 release candidate: Core context support, MX discontinued

glew-20151117.tgz

glew-20150805.tgz

Build

From a downloaded tarball or zip archive:

Linux and Mac

Using GNU Make

Install build tools

Debian/Ubuntu/Mint: $ sudo apt-get install build-essential libXmu-dev libXi-dev libgl-dev git

RedHat/CentOS/Fedora: $ sudo yum install libXmu-devel libXi-devel libGL-devel git

Build
$ make
$ sudo make install
$ make clean

Targets: all, glew.lib, glew.bin, clean, install, uninstall

Variables: SYSTEM=linux-clang, GLEW_DEST=/usr/local, STRIP=

Using cmake

CMake 2.8.12 or higher is required.

Install build tools

Debian/Ubuntu/Mint: $ sudo apt-get install build-essential libXmu-dev libXi-dev libgl-dev git cmake

RedHat/CentOS/Fedora: $ sudo yum install libXmu-devel libXi-devel libGL-devel git cmake

Build
$ cd build
$ cmake ./cmake 
$ make -j4

Windows

Visual Studio

Use the provided Visual Studio project file in build/vc12/

Projects for vc6 and vc10 are also provided

MSYS/Mingw

Available from Mingw

Requirements: bash, make, gcc

$ mingw32-make
$ mingw32-make install
$ mingw32-make install.all

Alternative toolchain: SYSTEM=mingw-win32

MSYS2/Mingw-w64

Available from Msys2 and/or Mingw-w64

Requirements: bash, make, gcc

$ pacman -S gcc make  mingw-w64-i686-gcc mingw-w64-x86_64-gcc 
$ make
$ make install
$ make install.all

Alternative toolchain: SYSTEM=msys, SYSTEM=msys-win32, SYSTEM=msys-win64

glewinfo

glewinfo is a command-line tool useful for inspecting the capabilities of an OpenGL implementation and GLEW support for that. Please include the output of glewinfo with bug reports, as appropriate.

---------------------------
    GLEW Extension Info
---------------------------

GLEW version 2.0.0
Reporting capabilities of pixelformat 3
Running on a Intel(R) HD Graphics 3000 from Intel
OpenGL version 3.1.0 - Build 9.17.10.4229 is supported

GL_VERSION_1_1:                                                OK
---------------

GL_VERSION_1_2:                                                OK
---------------
  glCopyTexSubImage3D:                                         OK
  glDrawRangeElements:                                         OK
  glTexImage3D:                                                OK
  glTexSubImage3D:                                             OK

...

Code Generation

A Unix or Mac environment is neded for building GLEW from scratch to include new extensions, or customize the code generation. The extension data is regenerated from the top level source directory with:

make extensions

An alternative to generating the GLEW sources from scratch is to download a pre-generated (unsupported) snapshot:

https://sourceforge.net/projects/glew/files/glew/snapshots/

Travis-built snapshots are also available:

https://glew.s3.amazonaws.com/index.html

Authors

GLEW is currently maintained by Nigel Stewart with bug fixes, new OpenGL extension support and new releases.

GLEW was developed by Milan Ikits and Marcelo Magallon. Aaron Lefohn, Joe Kniss, and Chris Wyman were the first users and also assisted with the design and debugging process.

The acronym GLEW originates from Aaron Lefohn. Pasi Kärkkäinen identified and fixed several problems with GLX and SDL. Nate Robins created the wglinfo utility, to which modifications were made by Michael Wimmer.

Copyright and Licensing

GLEW is originally derived from the EXTGL project by Lev Povalahev. The source code is licensed under the Modified BSD License, the Mesa 3-D License (MIT) and the Khronos License (MIT).

The automatic code generation scripts are released under the GNU GPL.

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