Doesn't matter. As long as you use VR to display a virtual 3D environment and you move within it, your inner ear will fight with your vision system if you're moving or not. If the visual system and the accelerometer don't agree, the positioning system throws an exception.
And, for whatever reason, the human exception handler for that problem is firmly linked to the barf() subroutine ;)
Like I said, as long as you're not flying around- moving within it, then your inner ear doesn't care. Turning your head doesn't count. I don't see a need in a code-in-VR system to move like that. And most VR games solve this my having your teleport instead of translate.
I think the barf routine is because when your brain senses your vestibular system not working it thinks "oops I must be poisoned" and tries to make you throw up.
