Anton's OpenGL 4 Tutorials book demo code

This series of demos accompanies the e-book "Anton's OpenGL 4 Tutorials": antongerdelan.net/opengl

Copyright Dr Anton Gerdelan, Trinity College Dublin, Ireland. email: antonofnote AT gmail

Info

See "LICENCE.txt" for licence information.

Each chapter with major demonstration code has a corresponding demo here. There is also an example of code for Hello Triangle for OpenGL 2.1 for reference.

Each demo has easy-to-read Makefiles for Linux, OS X, and 32-bit Windows. There are also Visual Studio projects, but you may have to download newer versions of the libraries in the common/ folder to match your version of VS.

This code is some years old now and builds may fall out of date. I try to maintain this so that it functions but be aware that Makefiles and build details may differ slightly from book text for this reason. If you have a [tidy] CMake setup or updated build feel free to submit a pull request here.

Compiling

The libraries depended on reside in the common/ folder

• common/include - header files
• common/linux_i386 - 32-bit Linux libraries
• common/linux_x86_64 - 64-bit Linux libraries
• common/msvc110 - 32-bit Windows visual studio libraries
• common/osx_64 - 64-bit apple OS X libraries
• common/win32 - 32-bit Windows GCC (mingw) libraries

Linux

• Install a C and C++ compiler - usually by installing a "build-essential" bundle package via the package manager on your distribution:

sudo apt-get install build-essential

• Install the GLFW3 and FreeType libraries:

sudo apt-get install libglfw3-dev
sudo apt-get install libfreetype6-dev

• Open a terminal and cd to the demo of choice, then

64-bit systems:

make -f Makefile.linux64

32-bit systems:

make -f Makefile.linux32

Apple OS X

• Install Clang or GNU compiler and tools - usually by installing Apple XCode through the App Store. It's free.
• Open a terminal and cd to the demo of choice:

make -f Makefile.osx

Windows with GCC

I only provided 32-bit versions of the Makefile and libraries here. The 32-bit builds will run on all Windows machines - I use 32-bit builds on my 64-bit Windows. If you want to add a 64-bit build it's pretty easy to copy the 32-bit Makefile and change the folder. You will need to recompile GLFW, GLEW, AssImp, and Freetype though.

• install the GNU Compiler Collection - usually by installing the MinGW toolkit. http://www.mingw.org/
• open a console and cd to the demo of choice

make -f Makefile.win32 (may have been renamed to mingw-make32 or similar)

• copy the .dll files from the main folder to the demo folder

Windows with Visual Studio

I provided some Visual Studio 2012 project files. You can find an overarching solution file in the main folder. This should convert well to most versions of Visual Studio. I used 32-bit versions of the libraries, but there's no reason that you can't add 64-bit versions if you prefer.

VS 2013 seems to work, but with 2015 you'll probably need to download a newer version of the libraries used to get around linking errors.

Caveats

• Code is directly copy-pasted from book sections. This means that there will be redundant OpenGL calls to bind things etc. but I think it's easier to follow along like this.
• Code explained in prior examples is moved to a file called gl_utils.cpp to avoid cluttering main.cpp. This means that gl_utils.cpp is not necessarily the same in each demo, but is built up gradually.

SDL2 Port

Dr Aidan Delaney at the University of Brighton has made an SDL2 port (as an alternative to using GLFW), which you can find on GitHub https://github.com/AidanDelaney/antons_opengl_tutorials_book/

Credits

Special thanks to all the readers over the years that have submitted additions, bug reports, fixes, and feedback. If you have submitted a correction and don't mind having your name/@ printed here please let me know.

Contributors (mostly via GitHub):

• Olivier Nivoix
• sarangbaheti
• kevin
• Jon
• julien
• define-private-public
• Fwjrei
• guysherman
• 24kwakahana
• battila7
• Gnimuc