A-Frame is an open source framework for easily creating WebVR experiences with HTML. It is designed and maintained by MozVR (Mozilla’s virtual reality team research team). A-Frame wraps WebGL in HTML custom elements, enabling web developers to create 3D VR scenes that leverage WebGL’s power, without having to learn its complex low-level API. Because WebGL is ubiquitous in modern browsers on desktop and mobile, A-Frame experiences work across desktop, iPhone (Android support coming soon), and Oculus Rift headsets.
Cross-platform is particularly important to gain a mass market.
Via Andy Baio.