{"action":"created","issue":{"url":"https://api.github.com/repos/googlevr/gvr-android-sdk/issues/129","repository_url":"https://api.github.com/repos/googlevr/gvr-android-sdk","labels_url":"https://api.github.com/repos/googlevr/gvr-android-sdk/issues/129/labels{/name}","comments_url":"https://api.github.com/repos/googlevr/gvr-android-sdk/issues/129/comments","events_url":"https://api.github.com/repos/googlevr/gvr-android-sdk/issues/129/events","html_url":"https://github.com/googlevr/gvr-android-sdk/issues/129","id":162527401,"number":129,"title":"Mismatch between Cardboard (2015) specification and QR code info","user":{"login":"shirj","id":10003477,"avatar_url":"https://avatars.githubusercontent.com/u/10003477?v=3","gravatar_id":"","url":"https://api.github.com/users/shirj","html_url":"https://github.com/shirj","followers_url":"https://api.github.com/users/shirj/followers","following_url":"https://api.github.com/users/shirj/following{/other_user}","gists_url":"https://api.github.com/users/shirj/gists{/gist_id}","starred_url":"https://api.github.com/users/shirj/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/shirj/subscriptions","organizations_url":"https://api.github.com/users/shirj/orgs","repos_url":"https://api.github.com/users/shirj/repos","events_url":"https://api.github.com/users/shirj/events{/privacy}","received_events_url":"https://api.github.com/users/shirj/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2016-06-27T19:19:47Z","updated_at":"2016-08-01T21:36:51Z","closed_at":null,"body":"_(I understand this is not really a code issue with this project, but this is probably the closest related project where I could find an answer)_\r\n\r\n\r\nI am working on a project that requires accurate knowledge of the Field of View (FOV) of the Cardboard viewer.\r\n\r\n\r\nIn \"Google Cardboard IO 2015 Technical Specifications.pdf\" (which is a part of the [Google Cardboard Manufacturer Kit (.zip)](https://vr.google.com/cardboard/downloads/wwgc_manufacturers_kit.zip) or also [available here](http://schd.ws/hosted_files/ssslc2016/0b/Google%20Cardboard%20IO%202015%20Technical%20Specifications.pdf#page=3)) it specifies on _page 3_:\r\n\r\n> Google Cardboard (I/O 2015 edition) contains custom designed, **80° FOV**, 34 mm diameter lenses.\r\n\r\n\r\nHowever, when I decoded the QR code on the Cardboard with [this CardboardDevice.proto message definition](https://github.com/google/wwgc/blob/master/www/CardboardDevice.proto), I obtained the following information:\r\n\r\n> vendor: \"Google\"\r\n> model: \"Cardboard\"\r\n> screen_to_lens_distance: 0.0392999984324\r\n> inter_lens_distance: 0.0639000013471\r\n> **left_eye_field_of_view_angles: 60.0**\r\n> **left_eye_field_of_view_angles: 60.0**\r\n> **left_eye_field_of_view_angles: 60.0**\r\n> **left_eye_field_of_view_angles: 60.0**\r\n> tray_to_lens_distance: 0.035000000149\r\n> ...\r\n\r\n\r\nTherefore the QR code is suggesting that this Cardboard has a **120° FOV**.\r\n\r\n\r\nWhy is there a mismatch between the two sources? And which is the correct number? If the number on in the QR code is wrong, then does it mean that this SDK has always been rendering incorrectly for the Cardboard Viewer? \r\n\r\n\r\nThanks! \r\n\r\n"},"comment":{"url":"https://api.github.com/repos/googlevr/gvr-android-sdk/issues/comments/236715752","html_url":"https://github.com/googlevr/gvr-android-sdk/issues/129#issuecomment-236715752","issue_url":"https://api.github.com/repos/googlevr/gvr-android-sdk/issues/129","id":236715752,"user":{"login":"dav-cz","id":200551,"avatar_url":"https://avatars.githubusercontent.com/u/200551?v=3","gravatar_id":"","url":"https://api.github.com/users/dav-cz","html_url":"https://github.com/dav-cz","followers_url":"https://api.github.com/users/dav-cz/followers","following_url":"https://api.github.com/users/dav-cz/following{/other_user}","gists_url":"https://api.github.com/users/dav-cz/gists{/gist_id}","starred_url":"https://api.github.com/users/dav-cz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dav-cz/subscriptions","organizations_url":"https://api.github.com/users/dav-cz/orgs","repos_url":"https://api.github.com/users/dav-cz/repos","events_url":"https://api.github.com/users/dav-cz/events{/privacy}","received_events_url":"https://api.github.com/users/dav-cz/received_events","type":"User","site_admin":false},"created_at":"2016-08-01T21:36:51Z","updated_at":"2016-08-01T21:36:51Z","body":"Thanks for the report, I forwarded this to relevant folks."}}
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