It's certainly an idea with a future (not really a new one). But, as Flamey says, it does require oodles of light. Perhaps when we all have webcams with infra-red LEDs built in. They certainly are aiming it in the right direction, by keeping it generalised.
I disagree that most PC gamers play DOOM3 in the dark. But, I agree that gameplay doesn't usually result in having lots of lights on.
I disagree that most PC gamers play DOOM3 in the dark. But, I agree that gameplay doesn't usually result in having lots of lights on.