Can't get enough of "life" in three dimensions from the big screen? There's now an option within an app for that. Following in the footsteps of movie theaters everywhere, Youtube has created a new format for 3D viewing.

That could mean some cool innovation for content creators in the future, as people mess with camera angles and have the chance to play smarter tricks on your eyes.

What's more, all of Youtube's library (even the 2D content) can function like 3D content too, thanks to a new option in video playback.

Things like base jumping, helmet cams from the bravest of climbers, scuba diving, or even a play-through of the new Halo game all will feel just a little more real. This definitely changes things for the adventure videos and first-person shooter gaming categories.

Here's the catch (there's always one with such a drastic change): you'll need Google Cardboard, a sort of low-quality housing for your phone that lets you switch mobile video to a format that, through the viewer, will let you see things with a sense of depth.