This is a free 3d program called Truespace. It's very easy to learn however without updates. The project has been dead since 2008. This download is no longer available on the Caligari website so I uploaded it here for all 3d modelers to enjoy. This is release 7.6 and works very well. You cant compare this 3d program to Blender or Autodesk because it is so different, however you can do the same things.