The long-rumored Apple Glass could take advantage of data from other units to accurately map an environment, with head-mounted displays capturing data on a scene and sharing it for a better augmented reality experience.Augmented reality depends on having an accurate measurement of geometry in an environment, with imaging devices performing the task as cameras move around an area. For a single headset, this may be a relatively slow process, but performing the same task using multiple devices can both be beneficial and create its own problems.For a start, if multiple AR devices are monitoring an environment independently, the geometry in the maps they each create may not necessarily be accurate. Two people viewing an area based on independently-gathered data may see slightly differently-positioned virtual objects because of the map variations.Read more