• AR and VR Using the WebXR API. Learn to Create Immersive Content with WebGL, Three.js, and A-Frame by Rakesh Baruah - 328 pages

Wikipedia

• Template:Augmented Reality and Virtual Reality
• Virtual artifact
• PlayStation VR
• Open world is a virtual world in which the player can approach objectives freely, as opposed to a world with more linear and structured gameplay.
• VR photography is the interactive viewing of panoramic photographs, generally encompassing a 360-degree circle or a spherical view.