A spaceship hangar 3D environment designed for compositing and motion tracking practice in Blender. The project files complement a tutorial on integrating chroma key footage with a 3D scene. The package includes raw green screen video, pre-keyed footage elements including alpha channels and spill-suppressed video, and full HD motion tracking footage. Multiple Blender files are provided, offering different starting points such as the initial motion tracking setup, the 3D environment, and the completed compositing project.