https://i.ytimg.com/vi/37TjHH7sUFY/hqdefault.jpg Gravity Sketch is bringing hand tracking to its 3D design app. WEBSITE: http://futurism.com FACEBOOK: https://www.facebook.com/futurism TWITTER: https://twitter.com/futurism INSTAGRAM: https://instagram.com/futurism TUMBLR: http://futurismnews.tumblr.com/ source