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<div class="moz-cite-prefix">Andreas,</div>
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<div class="moz-cite-prefix">This version (V1.0) of the device API
does not attempt to address augmented reality (where a portion of
the displayed scene is provided by the "real world"). That will be
address in V1.1 (planned for Summer 2020). This version is
strictly for virtual reality where the entire scene is computer
generated. It is difficult to use at the moment because it
requires support from the browser environment. It might be
possible to extend the WebVR polyfill to support this API for much
(but probably not all) features.<br>
</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">There is an issue in the Immersive Web
Community Group to address declarative languages. The issue was
recently opened and is accepting comments.</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">This may be a time for X3D to really
clarify how it is going to fit into the web eco-system by
answering the questions:</div>
<div class="moz-cite-prefix">
<ul>
<li>Does X3D handle AR content/scenes?</li>
<li>If not, where in XR spectrum does X3D apply?</li>
<li>Will X3D be compliant with the Immersive Web specification?</li>
<ul>
<li>If so, what has to change in X3D? <br>
</li>
<ul>
<li>What will happen when X3D is used in a non-browser
environment?<br>
</li>
</ul>
<li>If not, in what environments will X3D operate?<br>
</li>
<li>How does the SAI need to change? (If X3D is not going to
be IW spec compliant, there may be no changes necessary.)<br>
</li>
<li>What happens to non-ECMAScript/JavaScript language
bindings?</li>
</ul>
</ul>
<p>This article that Andreas links below describes what is
necessary to test WebXR in Chrome. You will need to sign up.</p>
<p>Leonard Daly<br>
</p>
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<blockquote type="cite"
cite="mid:CAKdk67usWGU=JPOH_Yha618gSJxf2Ntjf38u-=cwyNcepGTbYg@mail.gmail.com">
<pre class="moz-quote-pre" wrap="">Thanks, good to see. I found this summary helpful as well.
<a class="moz-txt-link-freetext" href="https://developers.google.com/web/updates/2018/05/welcome-to-immersive">https://developers.google.com/web/updates/2018/05/welcome-to-immersive</a>
WebXR is actually available now, but web developers have to request a
revocable permission token to use the API with Chrome.
Easiest to use for experimentation is a polyfill using the now
superceded WebVR API. I feel only actually trying to use it will be
able to discover issues.
I see Layers are still there. In WebVR they were never supported, I think.
X3D was not designed for AR (or perhaps it was ?) but the SAI would
provides a way to feed in the real world into a Scene, using a
backend.
There just does not seem be to a declarative interface to the real
world, if that even would make sense.
How do you best/declaratively provide a floor or a tracked table as
recognized by a smart camera to a X3D scene which then lets you
interact (see how a new couch would fit) ?
-Andreas
On Tue, Feb 5, 2019 at 3:25 PM <a class="moz-txt-link-rfc2396E" href="mailto:x3d-public-request@web3d.org"><x3d-public-request@web3d.org></a> wrote:
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">
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Today's Topics:
1. Immersive Web Device API Specification (Leonard Daly)
----------------------------------------------------------------------
Message: 1
Date: Tue, 5 Feb 2019 08:49:38 -0800
From: Leonard Daly <a class="moz-txt-link-rfc2396E" href="mailto:Leonard.Daly@realism.com"><Leonard.Daly@realism.com></a>
To: X3D Public <a class="moz-txt-link-rfc2396E" href="mailto:x3d-public@web3d.org"><x3d-public@web3d.org></a>
Subject: [x3d-public] Immersive Web Device API Specification
Message-ID: <a class="moz-txt-link-rfc2396E" href="mailto:6f0e735b-21f6-748f-9bf6-14f3ebee247f@realism.com"><6f0e735b-21f6-748f-9bf6-14f3ebee247f@realism.com></a>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
The W3C has just published the first public WORKING DRAFT of the WebXR
Device API (<a class="moz-txt-link-freetext" href="https://www.w3.org/TR/2019/WD-webxr-20190205/">https://www.w3.org/TR/2019/WD-webxr-20190205/</a>). This is not
intended to be a fully fleshed out specification, but an early draft to
elicit comments from the public.
The API is the interface expressed in JavaScript between the user code
and the browser that controls much of the WebXR device functionality or
information. This includes things like setting up the session, handling
device orientation data, etc. It does not include the rendering
pipeline, and you still must call window.requestAnimationFrame for each
change to the display.
A very useful document is the WebXR Device API Explainer
(<a class="moz-txt-link-freetext" href="https://github.com/w3c/webvr/blob/master/explainer.md">https://github.com/w3c/webvr/blob/master/explainer.md</a>). This document
describes in non-spec language the philosophy behind the spec document
and may include more information than the spec WD in areas that are not
fully written.
If you find an issue (or more than one) with the spec document you can
report to the <a class="moz-txt-link-abbreviated" href="mailto:public-immersive-web@w3.org">public-immersive-web@w3.org</a> list (you need to be a member
of the list (see
<a class="moz-txt-link-freetext" href="https://lists.w3.org/Archives/Public/public-immersive-web/">https://lists.w3.org/Archives/Public/public-immersive-web/</a>) or to any
Immersive Web WG member
(<a class="moz-txt-link-freetext" href="https://www.w3.org/2000/09/dbwg/details?group=109735&order=org&public=1">https://www.w3.org/2000/09/dbwg/details?group=109735&order=org&public=1</a>).
Of particular interest are
1. items that differ from the Explainer
2. items that cannot be done in JavaScript
3. items that are inconsistent within the WD specification
4. items that conflict with other W3C standards.
--
*Leonard Daly*
3D Systems & Cloud Consultant
LA ACM SIGGRAPH Past Chair
President, Daly Realism - /Creating the Future/
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--
Andreas Plesch
Waltham, MA 02453
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<p><br>
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<div class="moz-signature">-- <br>
<font class="tahoma,arial,helvetica san serif" color="#333366">
<font size="+1"><b>Leonard Daly</b></font><br>
3D Systems & Cloud Consultant<br>
LA ACM SIGGRAPH Past Chair<br>
President, Daly Realism - <i>Creating the Future</i>
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