At present, augmented reality (AR) is usually a one-time product, and users will disappear after leaving or closing the application, requiring users to restart and recreate objects. To this end, Google launched cloud anchors last year to create more durable ar objects. With the official release of arcore 1.20, Google officially displayed earth cloud anchors today. < / P > < p > cloud anchors was first announced at the I / O Developers Conference in 2018 as a way to build collaborative AR applications. The way they work is for devices to create 3D feature maps based on visual data and allow other users to access them. These experiences used to be useful only for a single session and disappear after you close the application / game. < / P > < p > now, android with arcore 1.20 can be widely used by IOS and unity mobile developers. Some applications already support persistent cloud anchors, including: < / P > < p > SJ labs: helping passengers find their way at Stockholm central station, making it easier and faster for them to leave the train. < p > < p > < p > changdeok Arirang: visitors from Changde palace, South Korea, are allowed to arrive at relevant places under the leadership of Haechi in the theory of transmission, where they can experience the high fidelity ar content of history and culture. < / P > < p > at the same time, Google has been trying to make this feature easier to discover. Earth cloud anchors will use global localization technology that supports real-time view orientation in Google maps to “guide users to use AR content.”. Some ar experiences – whether historical entertainment or games – are related to the actual location. Earth cloud anchors will give users step-by-step instructions to indicate where they are going. Global Tech

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