Anyone noted which software stack he is using? Is it plain Java 3D API or any libraries on top of it? Also, I'd expect things would be more dynamic in whatever

Anyone noted which software stack he is using? Is it plain Java 3D API or any libraries on top of it? Also, I'd expect things would be more dynamic in whatever new game he's making, but that seems to be pretty static room he's playing with. Of course he could just be testing out various engine features, before setting out on the "content" part of the game.