Using the HTC Vive with a green screen lets others follow along Engadget by Mat Smit
 

It's often hard to convey what's happening inside virtual reality. HTC Vive's green screen idea attempts to do just that -- and also make it more interesting to watch. I will admit: Watching someone else play in VR is typically pretty damn boring. Bu...

http://www.engadget.com/2016/05/31/h...reen-computex/