BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Sabre//Sabre VObject 4.5.8//EN CALSCALE:GREGORIAN LAST-MODIFIED:20210406T205008Z BEGIN:VTIMEZONE TZID:America/Los_Angeles X-MICROSOFT-CDO-TZID:13 BEGIN:STANDARD DTSTART:20201101T090000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST END:STANDARD BEGIN:STANDARD DTSTART:20211107T090000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST END:STANDARD BEGIN:DAYLIGHT DTSTART:20210314T100000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:e04319d4-6887-4325-b02c-c4eff5814093 DTSTAMP:20210406T205008Z SUMMARY:Immersive Web Group Calls DTSTART;TZID=America/Los_Angeles:20210406T120000 DTEND;TZID=America/Los_Angeles:20210406T130000 DESCRIPTION:https://www.w3.org/events/meetings/e04319d4-6887-4325-b02c-c4ef f5814093/20210406T120000/\n\nCalls for discussing issues with WebXR and ot her Immersive Web techologies\n\nJoining Instructions\nMeeting number: 648 395 336 Meeting password: w3c\n\nIRC: #immersive-web\n\nIRC and Scribing Instructions\n\nAgenda: https://github.com/immersive-web/administrivia/blo b/main/meetings/wg/2021-04-06-Immersive_Web_Working_Group_Teleconference-a genda.md\n\nAgenda\n\n### Call Agenda\n\nThis agenda can be viewed and upd ated on [Github](https://github.com/immersive-web/administrivia/blob/main/ meetings/wg/2021-04-06-Immersive_Web_Working_Group_Teleconference-agenda.m d).\n\nIf you would like to add an item to the agenda or volunteer to scri be please open a pull request against this agenda.\n\n* [administrivia#154 Home for Raw Camera Access proposal / repository](https://github.com/imme rsive-web/administrivia/issues/154) [requested by bialpio](https://github. com/immersive-web/administrivia/issues/154#issuecomment-806276186)\n> This makes sense - we have been receiving requests for raw camera access API a nd were postponing working on it mostly due to privacy concerns\, but the other side of the argument is that raw camera access allows for more rapid prototyping of solutions while UA vendors work on standardizing privacy-p reserving APIs. This was also something that was mentioned during yesterda y's call in the context of marker tracking API - I believe 8th Wall would be interested in experimenting with JS-powered marker tracking from within WebXR. There are also use cases that are only possible with raw camera ac cess (and there may be more use cases that we don't even know we should be solving). I think Computer Vision is where those discussions & API incuba tions were supposed to happen so it'd seem to me that there was already a need for such features - creating a new repository would only help with th e organizational aspect of the work.\n>\n>For now I should be able to proc eed in my private repository\, but I'm mostly worried that folks will be h esitant to participate due to IP concerns. @-ing people who may have some opinion on this as well: @klausw\, @nbutko\, @thetuvix.\n>\n> In case we s till do not have a clear way forward by the time of the next meeting.\n\n* [webxr#1178 Use session's requested features instead of session device's enabled features to check if a reference space is supported ](https://gith ub.com/immersive-web/webxr/issues/1178) [requested by Manishearth](https:/ /github.com/immersive-web/webxr/issues/1178#issuecomment-805161134)\n> So basically the existing design falls out of the following constraints:\n>\n > - We want people to be able to request permissions _before_ a session st arts to time prompts\n> - We want people to be able to request permissions _during_ a session so they need not overwhelm the user with prompts for f eatures that may not be needed unless the user performs certain actions (l ike clicking an in-ui "enable experimental hand tracking" button)\n> - We wanted to use existing APIs as much as possible instead of inventing our o wn permissions system\n>\n>The second one is what's biting us in particula r here\, we want the following to work:\n>\n>```js\n>let sess = await navi gator.xr.requestSession("immersive-ar"\, { requiredFeatures: ["local-floor "]})\;\n>// ...\n>\n>navigator.permissions.query({name: "xr"\, mode: "imme rsive-ar"\, requiredFeatures: ["hand-tracking"]})\;\n>\n>sess.inputSources [0].hand.doSomething()\;\n>```\n>\n>\n>There are basically a couple paths forward for us here:\n>\n>## Keep it as is\n>\n>The status quo is _fine_\, but it does have the weird pitfall that consecutive sessions (or cached p ermissions) may lead to code working in some cases but not in others. It's a good way to induce "works on my machine" if the permission caching for your setup leads to code just working\, but other people have sessions get rejected.\n>\n>There can also be perf implications on implementations tha t do not spin up system resources when the relevant features are not yet e nabled\; e.g. ideally sessions without hand-tracking do not need to set up hand tracking until needed.\n>\n>## Add a mid-session feature request API \n>\n>We can add a `requestAdditionalFeatures({required:\, optional:})` AP I. This is unfortunate\, we built the permissions API stuff to avoid doing this. But it's probably a minor API\, and the permissions API is still us eful for controlling when permissions are _prompted_ vs when they are used .\n>\n>## Add an optional `session` parameter to `XRPermissionDescriptor`\ n>\n>We can continue to use the permissions API\, but add a way to "tag" p ermissions onto existing sessions by giving it a nullable `session` parame ter. This makes it possible for the permissions API to still be used pre-s ession to control prompt times\, but will still be useful during the sessi on to enable new features.\n>\n>## Add an `optionalFeaturesIMayAskForLater ButDontPromptForThemYet` parameter to `requestSession()`\n>\n>Lets a sessi on declare all features it _may_ rely on. Imperfect\, but works. Likely to be confusing even if we can come up with a better name for it.\n>\n> to d iscuss this next meeting\n\n### Immersive Web Working Group Teleconference - 2021-04-06\n\n\n
San Francisco (U.S.A. - California) Tuesday\, April 6\, 12:00 PM PDT\n
Boston (U.S.A. - Massachusett s) Tuesday\, April 6\, 3:00 PM EDT\n
London (United Kingdom - England) Tuesday\, April 6\, 8:00 PM GMT+1\n
Paris (France) Tuesday\, April 6\, 9:00 PM GMT+2\n
Tokyo (Japan) Wednes day\, April 7\, 4:00 AM GMT+9\n
Corresponding UTC (GMT) Tuesd ay\, April 6\, 7:00 PM UTC\n
\n\n### Logistics\n\nChair: Ada Rose C annon\n\nScribe:\n\nIRC: [irc.w3.org](http://irc.w3.org/):6667 #immersive- web [Instructions](https://github.com/immersive-web/administrivia/blob/mai n/IRC.md)\n\nCall Details can be found on the [Internal Mailing List](http s://lists.w3.org/Archives/Member/internal-immersive-web/2019Feb/0002.html) \n\nIf you are unable to login to view the call details please ask on the IRC before the call.\n\nFor assistance go to https://mit.webex.com/mit/mc and on the left navigation bar\, click "Support".\n\n### Help Wanted\n\nH ere are some issues which are good issues to get involved in\, if you have taken responsibility for one leave a comment in the issue:\n\n- [webvr-po lyfill-dpdb#34 Create a helper script/web page for generating values for a new device](https://github.com/immersive-web/webvr-polyfill-dpdb/issues/3 4)\n- [webxr-input-profiles#69 Resizing the window changes the model viewe r's aspect ratio](https://github.com/immersive-web/webxr-input-profiles/is sues/69) [[Future]](https://api.github.com/repos/immersive- web/webxr-input-profiles/milestones/4)\n- [webxr-gamepads-module#16 Add li nk to the registry](https://github.com/immersive-web/webxr-gamepads-module /issues/16) [[Pre-CR]](https://api.github.com/repos/immersi ve-web/webxr-gamepads-module/milestones/1)\n- [webxr#953 Typescript defini tions](https://github.com/immersive-web/webxr/issues/953) [[Pre-REC ]](https://api.github.com/repos/immersive-web/webxr/milestones/16) \n- [webxr#1115 Explicitly spec when inline animation frame loops are susp ended](https://github.com/immersive-web/webxr/issues/1115) [[Pre-RE C]](https://api.github.com/repos/immersive-web/webxr/milestones/16 )\n- [webxr-samples#80 Example 17: "Hands Test" is missing](https://github .com/immersive-web/webxr-samples/issues/80)\n- [administrivia#147 Platform /Framework Feedback](https://github.com/immersive-web/administrivia/issues /147) STATUS:CONFIRMED CREATED:20210406T054159Z LAST-MODIFIED:20210406T205008Z SEQUENCE:2 ORGANIZER;CN=W3C Calendar;PARTSTAT=ACCEPTED;ROLE=NON-PARTICIPANT:mailto:nor eply@w3.org ATTENDEE;CUTYPE=GROUP;ROLE=OPT-PARTICIPANT;RSVP=FALSE;CN=Immersive Web Comm unity Group:mailto:public-immersive-web@w3.org ATTENDEE;CUTYPE=GROUP;ROLE=OPT-PARTICIPANT;RSVP=FALSE;CN=Immersive Web Work ing Group:mailto:public-immersive-web-wg@w3.org LOCATION:Teleconference RECURRENCE-ID;TZID=America/Los_Angeles:20210406T120000 END:VEVENT END:VCALENDAR