I did some googling and I understand 6dof means VR you can move around in, rather than stay in a fixed point. All the adult movies so far are 3dof where you are in a fixed point. 6dof would be great for the kinds of porn movies I would love to see more of, where you are a voyeur watching people have sex. I presume you could move around the actors, watching from whatever angle you wanted. Personally I'd love to see a lesbian scene shot like that.
I'm curious - what kind of a camera set up would be required to film that? How restricted would the area you could move around in be? What kind of file size would it require? Would it affect the resolution?