You really wouldn't want to turn the 3D off, as it's pretty much the whole point of the Rift and it's the only scenario so far where "3D" has been done right - rather than a useless gimmick like 3D movies.
Having a scene rendered from a different viewpoint for each eye is the only way I can see 3D having any meaningful purpose, and that's how the Rift does it.
Having a scene rendered from a different viewpoint for each eye is the only way I can see 3D having any meaningful purpose, and that's how the Rift does it.