Cloning this repository:

git clone git://gitorious.org/~pumper/qt-labs/pumpers-scene-graph-demo.git pumpers-scene-graph-demo
cd pumpers-scene-graph-demo

Add this repository as a remote to an existing local repository:

git remote add pumpers-scene-graph-demo git://gitorious.org/~pumper/qt-labs/pumpers-scene-graph-demo.git
git fetch pumpers-scene-graph-demo
git checkout -b my-local-tracking-branch pumpers-scene-graph-demo/master_or_other_branch