Cloning this repository:

git clone git://gitorious.org/~riccardocanalicchio/qt-labs/riccardocanalicchios-qt3d.git riccardocanalicchios-qt3d
cd riccardocanalicchios-qt3d

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

git remote add riccardocanalicchios-qt3d git://gitorious.org/~riccardocanalicchio/qt-labs/riccardocanalicchios-qt3d.git
git fetch riccardocanalicchios-qt3d
git checkout -b my-local-tracking-branch riccardocanalicchios-qt3d/master_or_other_branch