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Graphics library notes
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We will use CMake, a
cross-platform, open-source make system. The provided homework code
will be developed on MaxOSX using CMake/clang, but has been tested and
should also work on Linux using CMake/g++, and Windows using
CMake/VisualStudio. Note that fighting through the installation & compilation
of the various graphics libraries on a specific OS/hardware can be frustrating.
Use the Google and please ask for help if you are stuck.
When you start a new assignment/project, you should first run
cmake on the provided code following the directions below. These
steps allow you to setup the build environment, verify installation of
all libraries, ensure the project correctly compiles and links, and
allows you to test the initial executable. These steps create the
Makefile or Visual Studio project file for your system. Once
completed you can launch your favorite source code editor or
Integrated Development Environment (IDE) and start working on the
Please let the instructor know (by email or through LMS) if there are
errors/updates to any of the information below. Also, please share
any additional installation/compilation instructions you have for your
specific environment. And if you catch any portability bugs in the
code while working on the homework let us know so we can update the
Common Instructions for all Operating Systems
CMake. You'll need version 2.8 or later.
Note for the Windows OS: Windows CMake should be on the path
ahead of Cygwin CMake. This is a common mistake!
Install GLFW, GLEW, and GLM following
the Graphics library installation
Download the provided files and put them in a new directory, e.g.,
AdvancedGraphics/hw0/src. The CMakeLists.txt file, all the
.cpp and .h files, the shaders, the data files, as well as your
README.txt file and your self-assessment gradesheet will go in this
Make a separate directory for building this project (e.g.,
Note: Separating the source code from the compilation/build
directory is a good software development strategy and works well with
version control (we recommend the git
version control system). You should "check in" all files in
the src directory. It also makes it simple to submit the
source code w/o submitting any platform-specific compilation files.
To do a clean build from scratch, you can simply delete and recreate
the build subdirectory.
Now on to the OS specific CMake instructions...
On Linux or MacOSX
Open up a terminal/shell and cd into the build directory.
Then run CMake giving it the relative path to the source code
directory. For example:
Now build the program:
Your executable will be in the current directory.
To run the program, and refer to a data file that is in the src
directory, you'll type something like this:
./ifs -input ../src/fern.txt
If you add new .cpp files, be sure to add them to the CMakeLists.txt file.
To rebuild the program after changing the source files, just type make.
On Windows with Visual Studio
Install Visual Studio
Launch the Visual Studio command shell (not just the cmd shell and not
a Cygwin shell). From the Start menu, under All Programs, find your
Visual Studio version and expand it. Then expand Visual Studio
Tools. Select the "Visual Studio 20XX Command Prompt". Or, on Windows
8.... hold down the windows key and hit 'q', then search for "Visual
Studio Tools" or "VS2012" or "Command Prompt", and double click on the
"Developer Command Prompt for VS20XX". Make sure to use the command
prompt without "x64" in the name if you're using 32-bit
libraries, and use a command prompt with "x64" in the name
for 64-bit libraries. You don't need "Cross Tools".
Within the Visual Studio command shell, navigate (using cd)
into the build directory. Then run CMake giving it a generator and
the source code directory.
To list the available generators, run:
For Visual Studio 2013, using the 64-bit graphics libraries:
cmake -G"Visual Studio 12 Win64" ../src
For Visual Studio 2013 using the 32-bit graphics libraries:
cmake -G"Visual Studio 12" ../src
It should say something like: "Building for: Visual Studio 2013".
Hopefully it finds all the necessary libraries and completes successfully!
If it complains about one of the graphics libraries not being
found, make sure you have installed them correctly. (NOTE: You need
to re-launch the Visual Studio command shell after installing new
Now actually run the compiler:
cmake --build .
And hopefully the build is successful and you have an executable
will be in Debug\your_program.exe or debug\your_program.exe
To run your executable with a data file in the source directory, type something like this:
debug\ifs.exe -input ../src/fern.txt
Once your build environment is setup, you can launch the Visual
Studio IDE by opening the solution file (named XXX.sln). E.g.,