{"action":"closed","issue":{"url":"https://api.github.com/repos/mrdoob/three.js/issues/6527","labels_url":"https://api.github.com/repos/mrdoob/three.js/issues/6527/labels{/name}","comments_url":"https://api.github.com/repos/mrdoob/three.js/issues/6527/comments","events_url":"https://api.github.com/repos/mrdoob/three.js/issues/6527/events","html_url":"https://github.com/mrdoob/three.js/issues/6527","id":74404074,"number":6527,"title":"css3dObject tracking relative to camera","user":{"login":"bcbirkhauser","id":476142,"avatar_url":"https://avatars.githubusercontent.com/u/476142?v=3","gravatar_id":"","url":"https://api.github.com/users/bcbirkhauser","html_url":"https://github.com/bcbirkhauser","followers_url":"https://api.github.com/users/bcbirkhauser/followers","following_url":"https://api.github.com/users/bcbirkhauser/following{/other_user}","gists_url":"https://api.github.com/users/bcbirkhauser/gists{/gist_id}","starred_url":"https://api.github.com/users/bcbirkhauser/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bcbirkhauser/subscriptions","organizations_url":"https://api.github.com/users/bcbirkhauser/orgs","repos_url":"https://api.github.com/users/bcbirkhauser/repos","events_url":"https://api.github.com/users/bcbirkhauser/events{/privacy}","received_events_url":"https://api.github.com/users/bcbirkhauser/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/mrdoob/three.js/labels/Help%20(please%20use%20Stackoverflow)","name":"Help (please use Stackoverflow)","color":"cfcfcf"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-05-08T15:38:36Z","updated_at":"2015-05-08T16:02:51Z","closed_at":"2015-05-08T16:02:51Z","body":"I am trying to keep track of CSS3DObjects to know when they come into view as the camera rotates.  I have my objects placed in a circle around the viewer and they spin around, as if the user is in the middle of the circle.  I want to know when they come into view and how close they are to the center of the screen.  Raycasting doesn't' seem to work with the CSS3DRenderer,  as it always returns an empty array.  I have also tried to convert the objects position to a 2d position and calculate it that way, but it doesn't really accomplish what I need. Any ideas how to accomplish this?  "}}