This is the closed neural network. It consists of closed blocks of neurons. One such block consists of three neurons which are connected between each other. All their axons and dendrites are connected each to other. There are no any open ends (It is right that all ends are connected). One block which you can see on 360 picture consists 33000 polys. The scene consists of 8 clones of it. You can make many clones of this block to create large neural network.