Last is the fake hdri, fake total global Illumination setup. A white sphere around the whole scene, no lights or atmosphere, or sun. Shadow Ambience turned to white, sky dome white. Objects made 100% TRANPARENT. It only works this way which is why it is so limited. But the scene actually looks cool, and real. Why? Because the white haze fools us into thinking its properly globally lit AND is getting total radiosity from the surroundings. But, bump textures will never show and there are all sorts of limitations. Oh well.