Ray tracer project for SI350 class @ Télécom ParisTech

First of all, we will use homebrew as a package & dependency manager. If you don't have it, you can simply install it with the line

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

If you do have it, make sure to update and upgrade all packages by running

brew upgrade
brew update

The project has dependency on qt and libqglviewer : install both of those by typing brew install qt and brew install libqglviewer. You will need to remove previous versions of those libraries if you installed them any other way. Quick sanity check : brew info qt should tell you you have version 4.8.5.

Finally, as the libqglviewer guys really aren't that clever, we need to execute the following commands:

ln -s /usr/local/Cellar/libqglviewer/2.5.1/QGLViewer.framework/ /usr/local/lib/QGLViewer.framework
install_name_tool -id /usr/local/lib/QGLViewer.framework/Versions/2/QGLViewer /usr/local/lib/QGLViewer.framework/QGLViewer 

The project has been correctly configured to work under those conditions. Loading the Xcode project and pressing cmd+B should successfully build the program : a RayTracer binary should appear in the bin folder at the root of the project.

The program hard-codes a bunch of path to model files and expects to be launched with the project directory as the working directory. Two solutions: you can navigate to the project directory (the directory containing the Xcode file) using your terminal and launch the program like that: ./bin/RayTracer, which is easy but not really convenient.

Better yet; you can configure Xcode to set the custom working directory: in the upper-left corner, click on RayTracer, "Edit Scheme".

Go to "Run" -> "Options" -> Check "Use custom working directory" and choose the project directory as custom working directory

Running the project (cmd+R) should bring up this Qt window :