Future users of Oculus VR’s Rift headset could use their hands to control virtual reality games, or visit a 3D model of the Roman Colosseum, thanks to two acquisitions the company made this week.

Facebook-owned Oculus VR has bought Nimble VR and 13th Lab, which specialize in hand tracking and 3D modelling, the company said in a blog post on Thursday.

U.S. company Nimble VR has been working on letting people use their hands in virtual worlds. Until now, Nimble was working on a product called Sense, which would sit on top of Oculus’ headset.

With the help of laser technology Sense can create an infrared image of the world, and track the location and joint angle of each finger. That makes it possible to control virtual objects and user interfaces without gloves or controllers, according to Nimble.

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