PolyVR is a scene authoring system.
clone this repository
git clone https://github.com/Victor-Haefner/polyvr.git
cd polyvr
sudo ./install
build the project in codeblocks with the project file polyvr/PolyVR.cbp. Set the number of compilation processes to 5 or more depending on your CPU. The option is in Settings > Compiler... > Global compiler settings > Build options.