Cloning this repository:

git clone git://gitorious.org/~valerius/qt-labs/valeriuss-scene-graph-demo.git valeriuss-scene-graph-demo
cd valeriuss-scene-graph-demo

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

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