It is really hard to explain exactly how to do it... Lol. Like if you look at your nose, you will notice that your whole computer screen will probably split in two. You kind of have to ease up from there until the two screens overlap about 70%. That is around about the amount I cross my eyes before focusing. Again, it's really hard to explain..
woo 2D!
I'd want to do this solely for the 3D porn images, which I'd post if it wasn't against the rules.
Psshh Index, I googled the shit out of that. Not gonna lie.