{"action":"created","issue":{"url":"https://api.github.com/repos/immersive-web/anchors/issues/3","repository_url":"https://api.github.com/repos/immersive-web/anchors","labels_url":"https://api.github.com/repos/immersive-web/anchors/issues/3/labels{/name}","comments_url":"https://api.github.com/repos/immersive-web/anchors/issues/3/comments","events_url":"https://api.github.com/repos/immersive-web/anchors/issues/3/events","html_url":"https://github.com/immersive-web/anchors/issues/3","id":309689320,"number":3,"title":"Fixed anchors independant from world understanding","user":{"login":"tbalouet","id":5400381,"avatar_url":"https://avatars3.githubusercontent.com/u/5400381?v=4","gravatar_id":"","url":"https://api.github.com/users/tbalouet","html_url":"https://github.com/tbalouet","followers_url":"https://api.github.com/users/tbalouet/followers","following_url":"https://api.github.com/users/tbalouet/following{/other_user}","gists_url":"https://api.github.com/users/tbalouet/gists{/gist_id}","starred_url":"https://api.github.com/users/tbalouet/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tbalouet/subscriptions","organizations_url":"https://api.github.com/users/tbalouet/orgs","repos_url":"https://api.github.com/users/tbalouet/repos","events_url":"https://api.github.com/users/tbalouet/events{/privacy}","received_events_url":"https://api.github.com/users/tbalouet/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":5,"created_at":"2018-03-29T09:47:38Z","updated_at":"2018-04-10T15:16:48Z","closed_at":null,"author_association":"NONE","body":"From the explainer \"Anchors update as real-world understanding improves\". We might want to leave the option to the developer for such updates. If the experience is about to place objects relative to each other, having one object's pose update while the second one doesn't might mess up with the system representation (think assembling a puzzle with different parts all having a pose).\r\nThis problem might be solved by setting an initial pose and then adding objects relative to it, but there might be use cases where that wouldn't work"},"comment":{"url":"https://api.github.com/repos/immersive-web/anchors/issues/comments/380138811","html_url":"https://github.com/immersive-web/anchors/issues/3#issuecomment-380138811","issue_url":"https://api.github.com/repos/immersive-web/anchors/issues/3","id":380138811,"user":{"login":"judax","id":5706282,"avatar_url":"https://avatars3.githubusercontent.com/u/5706282?v=4","gravatar_id":"","url":"https://api.github.com/users/judax","html_url":"https://github.com/judax","followers_url":"https://api.github.com/users/judax/followers","following_url":"https://api.github.com/users/judax/following{/other_user}","gists_url":"https://api.github.com/users/judax/gists{/gist_id}","starred_url":"https://api.github.com/users/judax/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/judax/subscriptions","organizations_url":"https://api.github.com/users/judax/orgs","repos_url":"https://api.github.com/users/judax/repos","events_url":"https://api.github.com/users/judax/events{/privacy}","received_events_url":"https://api.github.com/users/judax/received_events","type":"User","site_admin":false},"created_at":"2018-04-10T15:16:48Z","updated_at":"2018-04-10T15:16:48Z","author_association":"COLLABORATOR","body":"@tbalouet if I understand correctly, when you are referring to \"object\" in your reply, you mean a real world object right? Tracking of real world objects is out of the scope of the current proposal. No system, at the moment, is completely tracking relative anchors and if you want to constantly update an object you could perform a continious hit test against that location. In the future it might be possible to have such concept of tracking things, but not currently. Should you create an anchor for each hit? Well, that depends on your need. If you rely on the hit to place the virtual object, then you may not need an anchor. But if you are thinking about placing the virtual object in a hit for a prolonged period of time without updating it yourself, then you may require an anchor. We will create a new issue to comment on how lightweight anchor creation should be in order to enable easy and fast creation/destruction of them."}}
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