2015-04-20 Google、VR企業を2社買収、VR内で絵を描く「Tilt Brush」とVR用オーディオ「Thrive Audio」 http://shiropen.com/2015/04/17/7463 http://www.tiltbrush.com/ https://play.google.com/store/apps/details?id=com.sandh.tiltbrushgallery http://www.mee.tcd.ie/thrive/