doublevr
doublevr I don't think things have to be filmed specifically for it. It's going to work just great even with current videos.
Then I would not really call that interactive.
Sure there would be some benefit to preprogram "chapters", but my understanding from interactive would be something different.
This already starts in the pre-sex conversation where you might have different answers that change the outcome of the conversation. Or the girl asks you if you rather have a blowjob or fuck her tits.
Obviously all this forks of the scene would have to be shot to have a consistent footage.
An example would be dezyred, which does exactly this, or in the flat world lifeselector.
Virtualrealporn also did scenes like that years ago, but the problem was it only did really work with streaming and back then streaming was resolution wise even worse than downloads. For some reason they did stop once technology got to a point you actually could recognize something on the screen.
Virtualrealporn generally had a strange regression into mediocrity. I think they have been one of the first if not the first site to shoot 3k, they have been the first in de VR world to do interactive stories, they have been the first with integrated toy synchronizaton. And then it suddenly stopped, they took forever to upgrade to 5k, interactives are completely gone, the only thing that came back are the toys.