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<!DOCTYPE html><html lang="en-US"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width,height=device-height,initial-scale=1.0"><meta name="apple-mobile-web-app-capable" content="yes"><meta http-equiv="X-UA-Compatible" content="ie=edge"><meta property="og:type" content="website"><meta name="twitter:card" content="summary"><style>@media screen{body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button,body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-note-container button{-webkit-tap-highlight-color:transparent;-webkit-appearance:none;appearance:none;background-color:transparent;border:0;color:inherit;cursor:pointer;font-size:inherit;opacity:.8;outline:none;padding:0;transition:opacity .2s linear}body[data-bespoke-view=""] 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/*!
* Marp / Marpit Gaia theme.
*
* @theme gaia
* @author Yuki Hattori
*
* @auto-scaling true
* @size 16:9 1280px 720px
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class="bespoke-marp-osc"><button data-bespoke-marp-osc="prev" tabindex="-1" title="Previous slide">Previous slide</button><span data-bespoke-marp-osc="page"></span><button data-bespoke-marp-osc="next" tabindex="-1" title="Next slide">Next slide</button><button data-bespoke-marp-osc="fullscreen" tabindex="-1" title="Toggle fullscreen (f)">Toggle fullscreen</button><button data-bespoke-marp-osc="presenter" tabindex="-1" title="Open presenter view (p)">Open presenter view</button></div><div id=":$p"><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://images.unsplash.com/photo-1567881248445-83ead68a44d8");"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="1" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;" data-marpit-advanced-background="content">
<h1 id="create-web-ar-experiences"><strong>Create Web AR experiences</strong></h1>
<p>Fivos Doganis | <a href="mailto:fivos.doganis@gmail.com">fivos.doganis@gmail.com</a></p>
</section>
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<h1 id="why-use-the-web-for-ar">Why use the Web for AR?</h1>
<ul>
<li><strong>mobile</strong> experiences</li>
<li><strong>open</strong> technologies
<ul>
<li><strong>cross-platform</strong></li>
<li><strong>non-propietary</strong> (unlike Unity or Unreal)</li>
<li><strong>free</strong></li>
</ul>
</li>
<li>easy integration with many existing Web APIs
<ul>
<li><strong>anchors the the web to the real world</strong></li>
</ul>
</li>
</ul>
<footer>cover picture: Artem Bryzgalov <a href="https://unsplash.com/@abrizgalov">https://unsplash.com/@abrizgalov</a></footer>
</section>
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<h1 id="basic-ar">Basic AR</h1>
<p>Marker Based<br />
GPS based<br />
Works on desktop with webcams<br />
Works on old smartphones</p>
</section>
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<h1 id="steps">Steps</h1>
<ul>
<li>Run <img class="emoji" draggable="false" alt="⬅️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b05.svg" data-marp-twemoji=""/></li>
<li>Debug</li>
<li>Build</li>
<li>Modify</li>
<li>Create</li>
</ul>
</section>
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<h1 id="run-demo">Run: Demo</h1>
<ul>
<li>Check that your phone supports <a href="https://en.wikipedia.org/wiki/QR_code">QR code</a> scanning</li>
<li>iOS : Camera app by default</li>
<li>Android :
<ul>
<li>use Google Chrome + scan button</li>
<li>or install a reliable QR code scanning app such as <strong><a href="https://play.google.com/store/apps/details?id=com.trendmicro.qrscan">Trend Micro</a></strong></li>
</ul>
</li>
<li>Web alternatives :
<ul>
<li>webqr.com</li>
<li>qrcodescan.in</li>
</ul>
</li>
</ul>
</section>
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width="1280" height="720"><section id="6" data-theme="gaia" lang="en-US" style="--theme:gaia;" data-marpit-advanced-background="content"></section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-theme="gaia" lang="en-US" style="" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-theme="gaia" lang="en-US" style="--theme:gaia;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://media.giphy.com/media/ujUdrdpX7Ok5W/giphy.gif");background-size:contain;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="7" data-theme="gaia" lang="en-US" style="--theme:gaia;" data-marpit-advanced-background="content"></section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-theme="gaia" lang="en-US" style="" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="8" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="8" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="magic">Magic!</h1>
<ul>
<li>100% web AR application</li>
<li>open-source</li>
<li>cross-platform</li>
<li>no installation needed</li>
<li>easy to share</li>
<li>printable!</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="9" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="9" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="creating-your-own-qr-code">Creating your own QR code</h1>
<ul>
<li><a href="https://duckduckgo.com">https://duckduckgo.com</a>
<ul>
<li>"qr " + url</li>
<li><img class="emoji" draggable="false" alt="⚠️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/26a0.svg" data-marp-twemoji=""/> you must modifiy the link in THREE.js examples to remove iframes (iframes are not supported by XR Viewer on iOS) :<br />
<s>(<a href="https://threejs.org/examples/?q=paint#webxr_xr_paint">https://threejs.org/examples/?q=paint#webxr_xr_paint</a>)</s><br />
<img class="emoji" draggable="false" alt="➡️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/27a1.svg" data-marp-twemoji=""/> <a href="https://threejs.org/examples/webxr_xr_paint">https://threejs.org/examples/webxr_xr_paint</a></li>
</ul>
</li>
<li>Alternatives:
<ul>
<li><a href="https://support.google.com/chrome/answer/9979877?hl=en&co=GENIE.Platform%3DDesktop">use Google Chrome's QR code generator</a></li>
<li><a href="https://www.the-qrcode-generator.com/">https://www.the-qrcode-generator.com/</a></li>
<li><a href="https://codepen.io/chriscoyier/pen/QyPbXz">https://codepen.io/chriscoyier/pen/QyPbXz</a></li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="10" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<h1 id="steps-1">Steps</h1>
<ul>
<li>Run <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Debug <img class="emoji" draggable="false" alt="⬅️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b05.svg" data-marp-twemoji=""/></li>
<li>Build</li>
<li>Modify</li>
<li>Create</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="11" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="11" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="debug--how-does-it-work">Debug : how does it work?</h1>
<ul>
<li>QR code <img class="emoji" draggable="false" alt="➡️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/27a1.svg" data-marp-twemoji=""/> URL</li>
<li>corresponding URL
<ul>
<li><a href="https://jeromeetienne.github.io/AR.js/three.js/examples/mobile-performance.html">https://jeromeetienne.github.io/AR.js/three.js/examples/mobile-performance.html</a></li>
<li>Debug (F12)</li>
<li>source code: <a href="https://github.com/jeromeetienne/AR.js/blob/master/three.js/examples/mobile-performance.html">https://github.com/jeromeetienne/AR.js/blob/master/three.js/examples/mobile-performance.html</a></li>
</ul>
</li>
<li>loads the code (see next slide)</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="12" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="12" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="code">Code</h1>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-html"><span class="hljs-tag"><<span class="hljs-name">script</span> <span class="hljs-attr">src</span>=<span class="hljs-string">'vendor/three.js/build/three.min.js'</span>></span><span class="hljs-tag"></<span class="hljs-name">script</span>></span>
<span class="hljs-tag"><<span class="hljs-name">script</span> <span class="hljs-attr">src</span>=<span class="hljs-string">"vendor/three.js/examples/js/libs/stats.min.js"</span>></span><span class="hljs-tag"></<span class="hljs-name">script</span>></span>
<span class="hljs-tag"><<span class="hljs-name">script</span> <span class="hljs-attr">src</span>=<span class="hljs-string">"../build/ar.js"</span>></span><span class="hljs-tag"></<span class="hljs-name">script</span>></span>
<span class="hljs-tag"><<span class="hljs-name">script</span>></span><span class="language-javascript"><span class="hljs-title class_">THREEx</span>.<span class="hljs-property">ArToolkitContext</span>.<span class="hljs-property">baseURL</span> = <span class="hljs-string">'../'</span></span><span class="hljs-tag"></<span class="hljs-name">script</span>></span>
</code></pre>
<ul>
<li><a href="https://threejs.org/">THREE.js</a></li>
<li><a href="https://ar-js-org.github.io/AR.js/">AR.js</a> includes:
<ul>
<li><a href="http://thorstenbux.github.io/jsartoolkit5/">jsartoolkit</a>: asm.js version of <a href="https://github.com/artoolkit/artoolkit5">ARToolkit</a> using <a href="https://emscripten.org/">emscripten</a></li>
<li><a href="https://github.com/nicolocarpignoli/GeoAR.js">GeoAR.js</a>: geospatial AR (discussed later)</li>
</ul>
</li>
<li><a href="https://github.com/jeromeetienne/threex">THREEx</a>: THREE.js extensions (ancient code!)</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="13" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<h1 id="arjs">AR.js</h1>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="14" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://ar-js-org.github.io/AR.js-Docs/intro-image.gif");"><figcaption>fill</figcaption></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="14" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="14" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="content"></section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="14" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="15" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="15" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="arjs-features">AR.js <a href="https://ar-js-org.github.io/AR.js-Docs/">Features</a></h1>
<ul>
<li>Monochrome marker detection (cf. ARToolkit 1999!)</li>
<li>Markers <a href="https://medium.com/arjs/how-to-create-your-own-marker-44becbec1105">can be customized</a> <a href="https://jeromeetienne.github.io/AR.js/three.js/examples/marker-training/examples/generator.html">here</a> and <a href="https://jeromeetienne.github.io/AR.js/three.js/examples/arcode.html">here</a> (<a href="https://medium.com/arjs/ar-code-a-fast-path-to-augmented-reality-60e51be3cbdf">QR code</a>)</li>
<li>Color image detection using <strong>NFT</strong> (<strong>N</strong>atural <strong>F</strong>eature <strong>T</strong>racking) (cf. 2010!)
<ul>
<li>you must choose between <a href="https://raw.githack.com/AR-js-org/AR.js/master/three.js/build/ar.js">marker</a> and <a href="https://raw.githack.com/AR-js-org/AR.js/master/three.js/build/ar-nft.js">NFT</a></li>
</ul>
</li>
<li>Geospatial AR</li>
<li>But <strong>no SLAM!</strong>
<ul>
<li>there is another library for that (<a href="https://github.com/alanross/AlvaAR">AlvaAR</a>)</li>
<li>we can still imagine many AR experiences using AR.js</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-theme="gaia" lang="en-US" style="--theme:gaia;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://i.kym-cdn.com/entries/icons/mobile/000/032/379/Screen_Shot_2020-01-09_at_2.22.56_PM.jpg");"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="16" data-theme="gaia" lang="en-US" style="--theme:gaia;" data-marpit-advanced-background="content"></section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-theme="gaia" lang="en-US" style="" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="17" style="--paginate:true;--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-pagination-total="95" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="vertical"><figure style="background-image:url("https://stemkoski.github.io/AR-Examples/images/demo/custom-patterns.png");"></figure><figure style="background-image:url("https://stemkoski.github.io/AR-Examples/images/demo/magic-cube.png");"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="17" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="17" style="--paginate:true;--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-pagination-total="95" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h1 id="app-examples">App examples</h1>
<ul>
<li>
<p>Many (old) examples using <strong>AR.js + THREE.js</strong> + THREEx</p>
<ul>
<li><a href="https://github.com/AR-js-org/AR.js/blob/master/three.js/examples/">official</a>
<ul>
<li><a href="https://github.com/AR-js-org/AR.js/blob/master/three.js/examples/basic.html">basic</a> example</li>
<li>you can choose between live video, simple photo and a video a file!</li>
</ul>
</li>
<li><a href="https://stemkoski.github.io/AR-Examples/">Lee Stemkoski</a></li>
</ul>
</li>
</ul>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="17" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="18" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<h1 id="steps-2">Steps</h1>
<ul>
<li>Run <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Debug <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Build <img class="emoji" draggable="false" alt="⬅️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b05.svg" data-marp-twemoji=""/></li>
<li>Modify</li>
<li>Create</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="19" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="19" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="build-tools">Build: tools</h1>
<ul>
<li>
<p>Web development</p>
<ul>
<li>Web browser (Firefox, Chrome, Safari Mobile)</li>
<li>Git (optional but very useful)</li>
<li>Code Editor (VSCode), or <a href="https://glitch.com/">Glitch</a> (no installation needed!)</li>
</ul>
</li>
<li>
<p>Technologies: HTML, JS, CSS, WebGL, THREE.js, WebXR</p>
</li>
<li>
<p>Optional:</p>
<ul>
<li>OpenStreetMap, OpenLayers, CesiumJS, <a href="https://geoservices.ign.fr/documentation/diffusion/telechargement-donnees-libres.html">Géoservices IGN</a></li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="20" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="20" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="installing-the-browser">Installing the browser</h1>
<ul>
<li>Firefox installed by default
<ul>
<li>should be enough!</li>
</ul>
</li>
<li>Chrome
<ul>
<li>to test compatibility and some features</li>
<li>install the latest version (119+) on mobile</li>
<li>install Chromium on Linux
<ul>
<li>open-source version without proprietary services</li>
</ul>
</li>
</ul>
</li>
</ul>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-bash">sudo apt-get install chromium-browser
</code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="21" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="21" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="installating-git">Installating Git</h1>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code>sudo apt-get install git
git config --global user.name "myusername"
git config --global user.email myname@mymailprovider.com
</code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="22" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="22" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="installing-vscode"><a href="https://linuxize.com/post/how-to-install-visual-studio-code-on-ubuntu-18-04/">Installing VSCode</a></h1>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-bash">sudo apt update
sudo apt install software-properties-common apt-transport-https wget
wget -q https://packages.microsoft.com/keys/microsoft.asc -O- | sudo apt-key add -
sudo add-apt-repository <span class="hljs-string">"deb [arch=amd64] https://packages.microsoft.com/repos/vscode stable main"</span>
sudo apt install code
</code></pre>
<p><a href="https://unix.stackexchange.com/questions/452020/">Remove GPG warnings</a></p>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code>sudo gpgconf --kill dirmngr
sudo chown -R $USER:$USER ~/.gnupg
</code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="23" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="23" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="customize-vs-code">Customize VS Code</h1>
<ul>
<li>Avoid UI blinking by changing the settings:</li>
</ul>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-bash"><span class="hljs-built_in">set</span> window.titleBarStyle to custom
</code></pre>
<ul>
<li>Recommended extensions
<ul>
<li><a href="https://marketplace.visualstudio.com/items?itemName=ritwickdey.LiveServer">Live Server</a> or <a href="https://marketplace.visualstudio.com/items?itemName=yandeu.five-server">Five Server</a></li>
<li><a href="https://marketplace.visualstudio.com/items?itemName=mhutchie.git-graph">Git Graph</a> and/or <a href="https://marketplace.visualstudio.com/items?itemName=eamodio.gitlens">Git Lens</a></li>
<li><a href="https://marketplace.visualstudio.com/items?itemName=cesium.gltf-vscode">glTF Tools</a></li>
<li><a href="https://github.com/racz16/WebGL-GLSL-Editor">WebGL GLSL Editor</a>, <a href="https://marketplace.visualstudio.com/items?itemName=circledev.glsl-canvas">glsl-canvas</a></li>
<li><a href="https://marketplace.visualstudio.com/items?itemName=Gruntfuggly.todo-tree">Todo Tree</a>, <a href="https://marketplace.visualstudio.com/items?itemName=Yunduo.color-highlight-css-color-4">Color Highlight</a></li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-class="invert" data-theme="gaia" lang="en-US" class="invert" data-marpit-pagination="24" style="--paginate:true;--class:invert;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://i.stack.imgur.com/H8fpQ.png");background-size:contain;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="24" data-paginate="true" data-class="invert" data-theme="gaia" lang="en-US" class="invert" data-marpit-pagination="24" style="--paginate:true;--class:invert;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="content">
<ul>
<li>File > Settings > Format on Save <img class="emoji" draggable="false" alt="⭐" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b50.svg" data-marp-twemoji=""/></li>
</ul>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-class="invert" data-theme="gaia" lang="en-US" class="invert" data-marpit-pagination="24" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="25" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="25" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="local-development-caveats">Local development caveats</h1>
<ul>
<li>Impossible to load a file with a user action</li>
<li>CORS: <a href="https://developer.mozilla.org/fr/docs/Web/HTTP/CORS">Cross Origin Resource Sharing</a>
<ul>
<li>one of the many secuirty measures used by web browsers</li>
</ul>
</li>
</ul>
<p><img class="emoji" draggable="false" alt="➡️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/27a1.svg" data-marp-twemoji=""/> need to run a server, like <a href="https://marketplace.visualstudio.com/items?itemName=ritwickdey.LiveServer">Live Server</a>, or using Python:</p>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-shell"><span class="hljs-meta prompt_">$ </span><span class="language-bash"><span class="hljs-built_in">cd</span> /home/somedir</span>
<span class="hljs-meta prompt_">$ </span><span class="language-bash">python -m SimpleHTTPServer</span>
<span class="hljs-meta prompt_">
$ </span><span class="language-bash">python3 -m http.server</span>
</code></pre>
<p>Then open <code>http://localhost:8000</code> in your browser</p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="26" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="26" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="glitch-online-interactive-editor">Glitch: online interactive editor</h1>
<p><img src="https://aws1.discourse-cdn.com/business6/uploads/glitch/original/2X/6/63bf00cd3adcc2f2d9ee808d52941634f26e01bc.png" alt="" /></p>
<ul>
<li><a href="https://glitch.com/">https://glitch.com/</a>
<ul>
<li><a href="https://glitch.com/~threejs">Basic THREE.js example</a></li>
</ul>
</li>
</ul>
<p>Alternatives:</p>
<ul>
<li>Codepen.io</li>
<li>Repl.it</li>
<li><a href="https://codesandbox.io/s/threejs-c5vbl">CodeSandbox</a> etc.</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="27" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<h1 id="steps-3">Steps</h1>
<ul>
<li>Run <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Debug <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Build <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Modify <img class="emoji" draggable="false" alt="⬅️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b05.svg" data-marp-twemoji=""/></li>
<li>Create</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="28" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="28" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="modification">Modification</h1>
<ul>
<li>Modify the previous example
<ul>
<li>turn the cube red</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="29" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="29" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="a-frame"><a href="https://aframe.io/">A-Frame</a></h1>
<ul>
<li>or how to create a <a href="https://glitch.com/~aframe">web 3D app in just 10 lines of code</a></li>
</ul>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code><html>
<head>
<script src="https://aframe.io/releases/1.0.3/aframe.min.js"></script>
</head>
<body>
<a-scene>
<a-box position="-1 0.5 -3" rotation="0 45 0" color="#4CC3D9"></a-box>
<a-sphere position="0 1.25 -5" radius="1.25" color="#EF2D5E"></a-sphere>
<a-cylinder position="1 0.75 -3" radius="0.5" height="1.5" color="#FFC65D"></a-cylinder>
<a-plane position="0 0 -4" rotation="-90 0 0" width="4" height="4" color="#7BC8A4"></a-plane>
<a-sky color="#ECECEC"></a-sky>
</a-scene>
</body>
</html>
</code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="30" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="30" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="a-frame-pros">A-Frame Pros</h1>
<ul>
<li>built on top of THREE.js</li>
<li>declarative API: introduces new HTML tags</li>
<li>uses components
<ul>
<li><a href="https://aframe.io/docs/1.0.0/introduction/entity-component-system.html">Entity-Component System</a> (similar to <a href="https://blog.mozvr.com/ecsy-developer-tools/">ECSY</a>)</li>
</ul>
</li>
<li>extensible: <a href="https://aframe.io/docs/1.0.0/introduction/writing-a-component.html">create your own components and tags</a></li>
<li>abstracts VR and AR APIs</li>
<li>no JS code needed for simple scenes!</li>
<li>powerful <a href="https://aframe.io/docs/1.0.0/introduction/visual-inspector-and-dev-tools.html">debugger</a></li>
<li><a href="https://glitch.com/culture/an-intro-to-webvr/">many</a> <a href="https://medium.com/@kfarr/teaching-webvr-using-a-frame-and-glitch-for-intro-to-3d-programming-summer-course-ff63a0dd3884">interactive</a> <a href="https://aframe.io/aframe-school">lessons</a></li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="31" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="31" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="a-frame-%E2%9D%A4%EF%B8%8F-ar">A-Frame <img class="emoji" draggable="false" alt="❤️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2764.svg" data-marp-twemoji=""/> AR</h1>
<ul>
<li>a <a href="https://glitch.com/~aframe-arjs"><strong>web AR</strong> app in just 10 lines of code</a> (<a href="https://github.com/jeromeetienne/AR.js/blob/master/aframe/README.md">documentation</a>)</li>
</ul>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code><html>
<head>
<title>A-Frame + AR.js</title>
<script src="https://aframe.io/releases/0.8.0/aframe.min.js"></script>
<script src="https://jeromeetienne.github.io/AR.js/aframe/build/aframe-ar.js"></script>
</head>
<body>
<a-scene embedded arjs="debugUIEnabled:false;">
<a-marker preset="hiro">
<a-box position="0 0.5 0" color="yellow"></a-box>
</a-marker>
<a-entity camera></a-entity>
</a-scene>
</body>
</html>
</code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-theme="gaia" lang="en-US" style="--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://seanvanderlee.files.wordpress.com/2019/02/cmdmb.jpg?w=840");"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="32" data-theme="gaia" lang="en-US" style="--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h1 id="modification-1">Modification</h1>
<ul>
<li>Modify the previous example
<ul>
<li>turn the cube red</li>
</ul>
</li>
</ul>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-theme="gaia" lang="en-US" style="" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="33" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="33" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="a-frame--geolocated-ar">A-Frame + Geolocated AR</h1>
<ul>
<li>interesting markerless technology for outdoor experiences</li>
<li><a href="https://jeromeetienne.github.io/AR.js/aframe/examples/click-places/">A-Frame + GeoAR.js</a> (<a href="https://medium.com/chialab-open-source/location-based-gps-augmented-reality-on-the-web-7a540c515b3c">documentation</a>)</li>
</ul>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code><html>
<head>
<script src='https://cdn.jsdelivr.net/gh/aframevr/aframe@1c2407b26c61958baa93967b5412487cd94b290b/dist/aframe-master.min.js'></script>
<script src='../../build/aframe-ar.min.js'></script>
</head>
<link rel="stylesheet" href="../../src/location-based/stylesheets/index.css">
<!-- Dynamically add places from Javascript -->
<script src="./places.js"></script>
<body style='margin: 0; overflow: hidden;'>
<a-scene
cursor='rayOrigin: mouse; fuse: true; fuseTimeout: 0;'
raycaster="objects: [gps-entity-place];"
vr-mode-ui="enabled: false"
embedded
arjs='sourceType: webcam; sourceWidth:1280; sourceHeight:960; displayWidth: 1280; displayHeight: 960; debugUIEnabled: false;'>
<a-camera gps-camera rotation-reader>
</a-camera>
</a-scene>
</body>
</code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="34" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<ul>
<li>Run <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Debug <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Build <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Modify <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Create <img class="emoji" draggable="false" alt="⬅️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b05.svg" data-marp-twemoji=""/></li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="35" data-paginate="true" data-class="invert lead" data-theme="gaia" lang="en-US" class="invert lead" data-marpit-pagination="35" style="--paginate:true;--class:invert lead;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="arjs-projects">AR.js Projects</h1>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="36" style="--paginate:true;--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-pagination-total="95" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="vertical"><figure style="background-image:url("https://stemkoski.github.io/AR.js-examples/index/basic.png");"></figure><figure style="background-image:url("https://stemkoski.github.io/AR.js-examples/index/line.png");"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="36" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="36" style="--paginate:true;--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-pagination-total="95" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h1 id="examples">Examples</h1>
<ul>
<li>
<p><a href="https://aframe.io/">Official A-Frame examples</a></p>
</li>
<li>
<p><a href="https://home.adelphi.edu/~stemkoski/">Lee Stemkoski</a></p>
<ul>
<li><a href="https://stemkoski.github.io/A-Frame-Examples/">A-Frame</a></li>
<li><strong><a href="https://stemkoski.github.io/AR.js-examples/index.html">A-Frame + AR.js</a></strong></li>
</ul>
</li>
<li>
<p><a href="https://learn.framevr.io/">FrameVR</a></p>
<ul>
<li>course for beginners</li>
<li>inspiration for your projects</li>
</ul>
</li>
</ul>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="36" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="37" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<h1 id="project-ideas">Project ideas</h1>
<p>related to geolocation and maps</p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="38" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="38" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="show-a-portion-of-a-map-on-top-of-the-marker">Show a portion of a map on top of the marker</h1>
<ul>
<li>download map data</li>
<li>create a texture</li>
<li>create a <strong>tangible interface</strong> by manipulating the marker
<ul>
<li>e.g.: change the scale or the content of the map according to the position of the marker relative to the camera</li>
</ul>
</li>
<li>now try retriving map data live</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="39" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="39" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="display-points-of-interest-on-a-smartphone-using-geoarjs">Display points of interest on a smartphone using GeoAR.js</h1>
<ul>
<li>define a fictional point of interest and display it using GeoAR.js</li>
<li>retrieve nearby points of interest (<a href="https://www.data.gouv.fr/fr/datasets/r/17e5a7a9-d503-4457-a86d-3e8ff08fc8eb">https://www.data.gouv.fr/fr/datasets/r/17e5a7a9-d503-4457-a86d-3e8ff08fc8eb</a>)</li>
<li>retrieve current GPS coordinatesto create a point of interest</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="40" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<h1 id="more-ideas">More ideas</h1>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="41" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="41" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="animation">Animation</h1>
<ul>
<li>Display a map on top of a marker</li>
<li>Add animated objects (vehicles, Godzilla etc.)</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="42" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="42" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="interactions">Interactions</h1>
<ul>
<li>Display a map on top of a marker</li>
<li>Interact with a second marker
<ul>
<li>changethe displayed data when the second marker comes close to the first one</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="43" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="43" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="fun">Fun</h1>
<ul>
<li>Adapt existing code to leverage AR interactions
<ul>
<li><a href="https://aframe.io/examples/showcase/snowglobe/">https://aframe.io/examples/showcase/snowglobe/</a></li>
<li><a href="https://glitch.com/~happy-2020-webxr">https://glitch.com/~happy-2020-webxr</a></li>
<li><a href="https://aframe.io/docs/1.0.0/guides/building-a-minecraft-demo.html">https://aframe.io/docs/1.0.0/guides/building-a-minecraft-demo.html</a></li>
</ul>
</li>
<li><a href="https://glitch.com/culture/master-webvr-with-a-week-of-experiments/">https://glitch.com/culture/master-webvr-with-a-week-of-experiments/</a></li>
<li><a href="http://lsc.univ-evry.fr/~didier/html5/arpong/pong.html">AR Pong</a></li>
<li><a href="https://roland-dubois.github.io/aframe-meetup-nyc/">https://roland-dubois.github.io/aframe-meetup-nyc/</a></li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="44" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<h1 id="markerless-ar">Markerless AR</h1>
<p>Native AR: ARKit / ARCore<br />
WebXR<br />
HoloLens</p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="45" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<h1 id="steps-4">Steps</h1>
<ul>
<li>Run <img class="emoji" draggable="false" alt="⬅️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b05.svg" data-marp-twemoji=""/></li>
<li>Debug</li>
<li>Build</li>
<li>Modify</li>
<li>Create</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="46" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="46" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="native-ar">Native AR</h1>
<ul>
<li>Download <a href="https://justaline.withgoogle.com/">Just A Line</a>, by Google
<ul>
<li>for iOS</li>
<li><s>and Android</s> <img class="emoji" draggable="false" alt="💀" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/1f480.svg" data-marp-twemoji=""/> no longer available: try <a href="https://play.google.com/store/apps/details?id=ktech.sketchar">SketchAR</a> instead
<ul>
<li>install ARCore if needed ("Google Play Services for AR")</li>
<li>allows to check that markerless AR works on your device</li>
<li><a href="https://developers.google.com/ar/discover/supported-devices">recent smartphone</a> required</li>
<li>OS up to date</li>
</ul>
</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="47" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="47" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="demo">Demo</h1>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-theme="gaia" lang="en-US" style="--theme:gaia;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://lh3.googleusercontent.com/yR8GRREoLJ3cZYT5TgTgW8uLf6zizJdbQfnI9zYcd7q_syRhxGtL6Zmydvx6qQbA9PfzU8HVpycTg8KQqcUed6-3TIZsfLc=s850");"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="48" data-theme="gaia" lang="en-US" style="--theme:gaia;" data-marpit-advanced-background="content"></section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-theme="gaia" lang="en-US" style="" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="49" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="49" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="web-ar-using-webxr">Web AR using WebXR</h1>
<ul>
<li><strong>Android</strong>
<ul>
<li>install <strong>Chrome 81+</strong></li>
<li>if needed, enable <strong>WebXR AR module</strong> using <code>chrome://flags</code></li>
</ul>
</li>
<li><strong>iOS</strong>
<ul>
<li>iPhone 6S et +</li>
<li>iOS 12+</li>
<li>install <strong>Mozilla WebXR Viewer</strong> (<a href="https://github.com/mozilla-mobile/webxr-ios">open-source</a>)</li>
</ul>
</li>
<li>NOTE: experiences are similar but not always compatible (<strong>Draft</strong> API, non standard yet)</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="50" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("data:image/png;base64,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");background-size:contain;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="50" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="50" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="content">
<p>"<a href="https://caniuse.com/?search=webxr">caniuse</a>"</p>
<p><a href="https://immersive-web.github.io/webxr-samples/report/">WebXR<br />
Report</a> <img class="emoji" draggable="false" alt="⭐" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b50.svg" data-marp-twemoji=""/></p>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="50" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="51" style="--paginate:true;--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-pagination-total="95" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://blog.mozvr.com/content/images/2020/07/pasted-image-0.jpg");"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="51" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="51" style="--paginate:true;--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-pagination-total="95" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h1 id="mozilla-webxr-emulator"><a href="https://blog.mozvr.com/webxr-emulator-extension-ar-support/">Mozilla WebXR Emulator</a></h1>
<ul>
<li>uses WebXR Polyfill</li>
<li>fake mobile AR device</li>
<li>very convenient when you don't have an AR device or for debugging</li>
<li>hand tracking <a href="https://github.com/MozillaReality/WebXR-emulator-extension/tree/HandWIP">(WIP)</a></li>
</ul>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="51" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="52" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://lh6.googleusercontent.com/P7xOK6AAlFGVkhlNGFUuKZ3P2Ib8h5179l2f82z_EQOQZYpp_goavmorZNwJv0h1uL6Ypg5PIoZ3f56c8B_VuRgfmVxH2UgiMJkOPKESPRp5siemzpNZY15i4AYdGFbUsGH7L-pH");"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="52" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="52" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="content"></section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="52" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-class="invert" data-theme="gaia" lang="en-US" class="invert" data-marpit-pagination="53" style="--paginate:true;--class:invert;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://github.com/meta-quest/immersive-web-emulator/raw/main/screenshots/overview.gif");background-size:contain;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="53" data-paginate="true" data-class="invert" data-theme="gaia" lang="en-US" class="invert" data-marpit-pagination="53" style="--paginate:true;--class:invert;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="content">
<h1 id="meta-webxr-emulator"><a href="https://chromewebstore.google.com/detail/immersive-web-emulator/cgffilbpcibhmcfbgggfhfolhkfbhmik">Meta WebXR Emulator</a></h1>
<p><a href="https://github.com/meta-quest/immersive-web-emulator">source code</a></p>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-class="invert" data-theme="gaia" lang="en-US" class="invert" data-marpit-pagination="53" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="54" style="--paginate:true;--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-pagination-total="95" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="vertical"><figure style="background-image:url("https://framerusercontent.com/images/2lCUwi1vnF052feW6PA2FiDP4.png");"></figure><figure style="background-image:url("https://i.ytimg.com/vi/0WB3jdjc6u8/hqdefault.jpg");"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="54" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="54" style="--paginate:true;--theme:gaia;--marpit-advanced-background-split:50%;" data-marpit-pagination-total="95" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h1 id="webxr-in-safari-inside-apple-vision-pro-emulator"><a href="https://www.youtube.com/watch?v=0WB3jdjc6u8">WebXR in Safari inside Apple Vision Pro Emulator</a></h1>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="54" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="55" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("data:image/png;base64,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");background-size:contain;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="55" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="55" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="content">
<h1 id="demo-1"><a href="https://xr-spinosaurus.glitch.me/">Demo</a></h1>
<p>Android</p>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="55" style="" data-marpit-pagination-total="95" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-theme="gaia" lang="en-US" style="--theme:gaia;" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("https://aframe.io/images/blog/dino-ar.gif");"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="56" data-theme="gaia" lang="en-US" style="--theme:gaia;" data-marpit-advanced-background="content"></section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-theme="gaia" lang="en-US" style="" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="57" data-class="lead invert" data-theme="gaia" lang="en-US" class="lead invert" style="--class:lead invert;--theme:gaia;">
<h1 id="steps-5">Steps</h1>
<ul>
<li>Run <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Debug <img class="emoji" draggable="false" alt="⬅️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b05.svg" data-marp-twemoji=""/></li>
<li>Build</li>
<li>Modify</li>
<li>Create</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="58" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="58" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="source-code">Source code</h1>
<p><a href="https://aframe.io/blog/webxr-ar-module/">https://aframe.io/blog/webxr-ar-module/</a><br />
<a href="https://glitch.com/edit/#!/xr-spinosaurus">https://glitch.com/edit/#!/xr-spinosaurus</a></p>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code><a-scene>
<a-assets timeout="30000">
<a-asset-item id="spinosaurus" src="dino-model.glb"></a-asset-item>
</a-assets>
<a-camera position="0 1.2 0"></a-camera>
<a-entity id="dino" position="-1 0 -3" scale="0.5 0.5 0.5">
<a-entity position="0 2.15 0" rotation="0 55 0"
gltf-model="#spinosaurus"
animation-mixer
shadow="cast: true; receive: false"></a-entity>
</a-entity>
</a-scene>
</code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="59" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="background"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("data:image/png;base64,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");background-size:contain;"></figure></div></section></foreignObject><foreignObject width="1280" height="720"><section id="59" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="59" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95" data-marpit-advanced-background="content">
<h1 id="demo-1"><a href="https://webxr-ios.webxrexperiments.com/examples/ar_simplest/">Demo 1</a></h1>
<p>iOS</p>
</section>
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<h1 id="demo-2"><a href="https://threejs.org/examples/webxr_xr_paint">Demo 2</a></h1>
<p><img class="emoji" draggable="false" alt="⚠️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/26a0.svg" data-marp-twemoji=""/> VR only<br />
on iOS?</p>
</section>
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<h1 id="source-code-1">Source code</h1>
<p><a href="https://webxr-ios.webxrexperiments.com/">https://webxr-ios.webxrexperiments.com/</a><br />
<a href="https://blog.mozvr.com/responsive-webxr-a-painter-xr/">https://blog.mozvr.com/responsive-webxr-a-painter-xr/</a></p>
<ul>
<li><img class="emoji" draggable="false" alt="⚠️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/26a0.svg" data-marp-twemoji=""/> Code might be obsolete</li>
<li>uses a non-standard WebXR API
<ul>
<li>cf. <a href="https://github.com/mozilla/webxr-polyfill">WebXR Polyfill</a></li>
</ul>
</li>
<li>THREE.js code a bit more complex
<ul>
<li>more than 10 lignes (but still pretty straightforward!)</li>
</ul>
</li>
<li><a href="https://aframe.io/blog/webxr-ar-module/">A-Frame WebXR AR Module</a>: recent version
<ul>
<li>needs testing, code might need to be adapted</li>
</ul>
</li>
</ul>
</section>
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<h1 id="steps-6">Steps</h1>
<ul>
<li>Run <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Debug <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/></li>
<li>Build <img class="emoji" draggable="false" alt="⬅️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b05.svg" data-marp-twemoji=""/></li>
<li>Modify</li>
<li>Create</li>
</ul>
</section>
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<h1 id="webxr-basic-concepts-xr--ar-%E2%AD%90"><a href="https://developer.mozilla.org/en-US/docs/Web/API/WebXR_Device_API">WebXR Basic Concepts</a> <a href="https://immersive-web.github.io/webxr/explainer.html">XR</a> + <a href="https://github.com/immersive-web/webxr-ar-module/blob/master/ar-module-explainer.md">AR</a> <img class="emoji" draggable="false" alt="⭐" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b50.svg" data-marp-twemoji=""/></h1>
<ul>
<li><a href="https://github.com/immersive-web/webxr/blob/master/spatial-tracking-explainer.md"><strong>Tracking</strong></a> (spaces) and <a href="https://github.com/immersive-web/real-world-geometry"><strong>geometry</strong> of the real scene</a>:
<ul>
<li>detect planes and geometry (point cloud or mesh) using SLAM, or similar technologies</li>
</ul>
</li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/API/XRFrame"><strong>XR Frame</strong></a>: RGB image + camera info (pose, focal, tracking, light)</li>
<li><a href="https://github.com/immersive-web/hit-test/blob/main/hit-testing-explainer.md"><strong>Hit test</strong></a> intersection between a virtual ray and the real scene
<ul>
<li>frequent constraint: RGB camera + depth estimation</li>
</ul>
</li>
<li><a href="https://github.com/immersive-web/anchors/blob/master/explainer.md"><strong>Anchors</strong></a> and <strong>worldmap</strong> :
<ul>
<li>points of interest placed by the used</li>
<li>updated continuously as the real world gets reconstructed</li>
</ul>
</li>
</ul>
</section>
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<h1 id="webxr-advanced-concepts">WebXR Advanced Concepts</h1>
<ul>
<li><a href="https://github.com/immersive-web/depth-sensing"><strong>Occlusion handling</strong></a>
<ul>
<li>human occlusion (ARKit)</li>
<li>real world occlusion (ARKit + LiDAR, ARCore)</li>
</ul>
</li>
<li>Perception
<ul>
<li>of the environment (<a href="https://github.com/immersive-web/computer-vision">Vision</a>, IA, LiDAR)
<ul>
<li>reconstruction + classification floor, wall, table</li>
</ul>
</li>
<li>of the user
<ul>
<li>hand gestures, gaze, intentions</li>
</ul>
</li>
</ul>
</li>
</ul>
</section>
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<h1 id="hybrid-apps">Hybrid Apps</h1>
<p>Native + Web</p>
</section>
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<h1 id="hybrid-apps-1">Hybrid Apps</h1>
<ul>
<li><strong>Some feature are not available</strong> via JS in the standard browser
<ul>
<li>e.g.: no LiDAR access</li>
</ul>
</li>
<li>Web Plugins are forbidden
<ul>
<li>security, installation and update issues</li>
</ul>
</li>
<li>Idea: reuse existing web browser components
<ul>
<li><strong>native low-level code</strong> (C++, Java, Kotlin, Objective-C, Swift)</li>
<li><strong>create new APIs in JS</strong>, which call the native code</li>
</ul>
</li>
<li><strong>issues with non-standard APIs</strong>: if we create our own APIs the code might not be portable</li>
</ul>
</section>
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<h1 id="architecture">Architecture</h1>
<ul>
<li>Hybrid App example: <s>PhoneGap</s> <strong>Cordova</strong></li>
</ul>
</section>
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<h1 id="why">Why?</h1>
<ul>
<li><strong>Pros</strong>
<ul>
<li><strong>expose missing APIs</strong> in JS: often the only solution!</li>
<li><strong>speed</strong>: call native code, faster than pure JS</li>
<li><strong>portable code</strong>: app logic written in JS</li>
</ul>
</li>
<li><strong>Cons</strong>
<ul>
<li>still slower than a 100% native app</li>
<li>wasted <strong>performance</strong> when converting between JS and native</li>
<li><strong>lowest common denominator</strong> to satisfy most platforms</li>
<li><strong>non-native look and UI</strong> (not very important for immersive apps)</li>
</ul>
</li>
</ul>
</section>
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<h1 id="conclusion">Conclusion</h1>
<ul>
<li>ideally:
<ul>
<li>100% web applications</li>
<li>fast, thanks to standards well-supported by the browser and the hardware (cf. <a href="https://developer.mozilla.org/en-US/docs/Web/API/WebGL_API/Tutorial/Getting_started_with_WebGL">WebGL</a>)</li>
</ul>
</li>
<li>however standardization will take time
<ul>
<li>XR hardware and software stacks are very fragmented</li>
<li><a href="https://github.com/immersive-web/webxr/blob/master/explainer.md#is-this-api-affiliated-with-openxr">OpenXR</a> adoption should help</li>
</ul>
</li>
<li>in the mean time, <strong>hybrid apps are a good compromise</strong>
<ul>
<li>and allow us to start coding AR apps in JS right now!</li>
</ul>
</li>
</ul>
</section>
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<h1 id="standard-apis">Standard APIs</h1>
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/API/WebVR_API"><s>WebVR</s></a> <img class="emoji" draggable="false" alt="❌" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/274c.svg" data-marp-twemoji=""/> avoid, obsolete
<ul>
<li>but sometimes the only API available</li>
</ul>
</li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/API/WebXR_Device_API">WebXR</a> <img class="emoji" draggable="false" alt="✅" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2705.svg" data-marp-twemoji=""/> == <strong>"WebVR 2.0 + AR"</strong>
<ul>
<li><img class="emoji" draggable="false" alt="⚠️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/26a0.svg" data-marp-twemoji=""/> <img class="emoji" draggable="false" alt="🚧" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/1f6a7.svg" data-marp-twemoji=""/> <a href="https://www.w3.org/TR/webxr/">W3C Draft API</a>, not stable yet, evolving fast</li>
<li><a href="https://chromereleases.googleblog.com/2019/12/chrome-for-android-update_17.html">Chrome 81</a> , AR still <a href="https://immersive-web.github.io/webxr-ar-module/">experimental</a>, cf. <code>chrome://flags</code></li>
</ul>
</li>
<li><strong>Polyfills</strong>
<ul>
<li>allow converting between APIs</li>
<li>let you use <a href="https://github.com/immersive-web/webxr-polyfill">the latest WebXR API</a> or <a href="https://github.com/immersive-web/webvr-polyfill">the old WebVR</a></li>
<li>allow a <a href="https://jsantell.com/webxr-polyfill/">limited WebXR API emulation</a> if needed</li>
</ul>
</li>
</ul>
</section>
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</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-theme="gaia" lang="en-US" style="" data-marpit-advanced-background="pseudo"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="75" data-paginate="true" data-theme="gaia" lang="en-US" data-marpit-pagination="75" style="--paginate:true;--theme:gaia;" data-marpit-pagination-total="95">
<h1 id="code-examples">Code examples</h1>
<ul>
<li>WebXR + <a href="https://immersive-web.github.io/webxr-samples/"><strong>WebGL</strong></a>
<ul>
<li><a href="https://github.com/immersive-web/webxr-samples/blob/master/immersive-ar-session.html">https://github.com/immersive-web/webxr-samples/blob/master/immersive-ar-session.html</a></li>
<li><a href="https://github.com/immersive-web/webxr-samples/blob/master/hit-test.html">https://github.com/immersive-web/webxr-samples/blob/master/hit-test.html</a></li>
</ul>
</li>
<li>WebXR + <a href="https://threejs.org/examples/?q=webxr"><strong>THREE</strong></a>
<ul>
<li><a href="https://threejs.org/examples/webxr_ar_hittest">https://threejs.org/examples/webxr_ar_hittest</a></li>
</ul>
</li>
<li>WebXR + <strong>A-Frame</strong>
<ul>
<li>Basketball: <a href="https://ada.is/blog/2021/01/14/making-an-ar-game/">https://ada.is/blog/2021/01/14/making-an-ar-game/</a></li>
</ul>
</li>
</ul>
</section>
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<h1 id="webxr-ar-module">WebXR AR Module</h1>
<p>API overview using pseudo-code</p>
</section>
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<h1 id="security-constraints-%F0%9F%9A%A8">Security constraints <img class="emoji" draggable="false" alt="🚨" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/1f6a8.svg" data-marp-twemoji=""/></h1>
<ul>
<li><strong>permissions</strong>
<ul>
<li>camera, location, movement</li>
</ul>
</li>
<li><img class="emoji" draggable="false" alt="⚠️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/26a0.svg" data-marp-twemoji=""/> <strong>https mandatory</strong>
<ul>
<li>use localhost + <a href="https://www.digitalocean.com/community/tutorials/how-to-create-a-self-signed-ssl-certificate-for-apache-in-ubuntu-20-04">SSL</a>, or <a href="https://glitch.com">glitch</a>, or <a href="https://hackernoon.com/publishing-a-threejs-project-on-github-pages-1d1a33dn">github.io</a>, <a href="https://vercel.com">vercel</a> etc.</li>
<li><img class="emoji" draggable="false" alt="➡️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/27a1.svg" data-marp-twemoji=""/> better: install <a href="https://ngrok.com"><strong>ngrok</strong></a> <img class="emoji" draggable="false" alt="⭐" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b50.svg" data-marp-twemoji=""/>
<ul>
<li>allows to create a https tunnelvery easily</li>
</ul>
</li>
</ul>
</li>
<li><strong>requires user action to start</strong>
<ul>
<li>AR / VR / XR Button to switch to AR</li>
</ul>
</li>
</ul>
</section>
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<h1 id="ar-initialization">AR Initialization</h1>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-javascript"><span class="hljs-title function_">isSessionSupported</span>(‘immersive-ar’);
<span class="hljs-comment">// RequestSession on Button press</span>
navigator.<span class="hljs-property">xr</span>.<span class="hljs-property">requestSession</span>
<span class="hljs-comment">// Add listener for ARButton Press</span>
<span class="hljs-comment">// Request reference spaces</span>
localReferenceSpace = <span class="hljs-keyword">await</span> session.<span class="hljs-title function_">requestReferenceSpace</span>(‘local<span class="hljs-string">');
viewerReferenceSpace = await session.requestReferenceSpace(‘viewer'</span>);
<span class="hljs-comment">// Request hitTest</span>
session.<span class="hljs-property">requestHitTestSource</span>
<span class="hljs-comment">// RequestAnimationFrame</span>
<span class="hljs-comment">// <span class="hljs-doctag">NOTE:</span> THREE.js must use</span>
renderer.<span class="hljs-property">setAnimationLoop</span>
<span class="hljs-comment">// instead of window.requestAnimationFrame</span>
<span class="hljs-comment">// Or else use session.requestAnimationFrame(render)</span>
</code></pre>
</section>
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<h1 id="draw">Draw</h1>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-javascript"><span class="hljs-comment">// On each Draw</span>
<span class="hljs-comment">// Callback on every draw, with an XRFrame</span>
<span class="hljs-keyword">const</span> <span class="hljs-title function_">render</span> = (<span class="hljs-params">t, frame</span>) => {
<span class="hljs-keyword">const</span> pose = frame.<span class="hljs-title function_">getViewerPose</span>(localReferenceSpace);
frame.<span class="hljs-title function_">getPose</span>(localReferenceSpace, viewerReferenceSpace).<span class="hljs-property">transform</span>.<span class="hljs-property">matrix</span>
<span class="hljs-keyword">const</span> hitTestResults = frame.<span class="hljs-title function_">getHitTestResults</span>( hitTestSource );
<span class="hljs-keyword">const</span> hit = hitTestResults[ <span class="hljs-number">0</span> ];
reticle.<span class="hljs-property">matrix</span>.<span class="hljs-title function_">fromArray</span>( hit.<span class="hljs-title function_">getPose</span>(viewerReferenceSpace ).<span class="hljs-property">transform</span>.<span class="hljs-property">matrix</span> );
}
</code></pre>
</section>
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<h1 id="selection-ontouch">Selection (onTouch)</h1>
<p>Example: <a href="https://github.com/mrdoob/three.js/blob/master/examples/webxr_ar_cones.html">https://github.com/mrdoob/three.js/blob/master/examples/webxr_ar_cones.html</a></p>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-javascript"><span class="hljs-comment">// Get hand, controller, or phone</span>
controller = renderer.<span class="hljs-property">xr</span>.<span class="hljs-title function_">getController</span>( <span class="hljs-number">0</span> );
<span class="hljs-comment">// See also selectstart, selectend, squeeze etc.</span>
controller.<span class="hljs-title function_">addEventListener</span>( <span class="hljs-string">'select'</span>, onSelect );
scene.<span class="hljs-title function_">add</span>( controller );
<span class="hljs-comment">// Before rendering, update the controller, and apply position to mesh (in meters)</span>
mesh.<span class="hljs-property">position</span>.<span class="hljs-title function_">set</span>( <span class="hljs-number">0</span>, <span class="hljs-number">0</span>, - <span class="hljs-number">0.3</span> ).<span class="hljs-title function_">applyMatrix4</span>( controller.<span class="hljs-property">matrixWorld</span> );
</code></pre>
</section>
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<h1 id="alternative-ar-libraries">Alternative AR Libraries</h1>
<ul>
<li><a href="https://github.com/google-ar/three.ar.js"><s>three.ar.js</s></a>, <a href="https://github.com/chenzlabs/aframe-ar"><s>aframe-ar</s></a>: obosletes, avoid</li>
<li><a href="https://github.com/jeeliz/jeelizAR">JeelizAR</a> <img class="emoji" draggable="false" alt="⭐" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/2b50.svg" data-marp-twemoji=""/>
<ul>
<li>lightweight fast (deep learning for object and face detection)</li>
</ul>
</li>
<li><a href="https://google.github.io/mediapipe/">MediaPipe</a>, <a href="https://handsfree.js.org">Handsfree.js</a> encapsulates JeelizAR and TensorFlow.js</li>
<li><a href="https://awe.media/">awe.js</a>: not free</li>
<li><a href="https://www.8thwall.com/"><s>8th Wall</s></a>
<ul>
<li>not free, proprietary and very restrictive license, <strong>avoid</strong>!</li>
<li>does not allow evaluation if you are a developer!</li>
</ul>
</li>
<li><a href="https://www.wikitude.com/products/wikitude-sdk/">Wikitude</a>: not free, no web</li>
</ul>
</section>
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<h1 id="experimental">Experimental</h1>
<ul>
<li>HoloLens
<ul>
<li>WebVR: obsolete and slow, but works (using Edge!)</li>
<li><s><a href="https://github.com/microsoft/HoloJS">HoloJS</a>: obsolete</s></li>
<li><a href="https://microsoft.github.io/HoloJS/spin-make.html">Spin Viewer</a>: HoloJS version available on MS Store
<ul>
<li><a href="https://microsoft.github.io/HoloJS/app-samples.html">examples</a></li>
</ul>
</li>
<li>remplaced by <a href="https://github.com/BabylonJS/BabylonNative">BabylonNative</a>?</li>
</ul>
</li>
<li>HoloLens 2
<ul>
<li><a href="https://docs.microsoft.com/en-us/windows/mixed-reality/develop/javascript/webxr-overview">WebXR</a>: works with the new Edge (Chromium based)</li>
<li><s><a href="https://blog.mozvr.com/firefox-reality-hololens/">Firefox Reality</a></s> <img class="emoji" draggable="false" alt="💀" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/1f480.svg" data-marp-twemoji=""/> <img class="emoji" draggable="false" alt="➡️" src="https://cdn.jsdelivr.net/gh/jdecked/twemoji@14.1.2/assets/svg/27a1.svg" data-marp-twemoji=""/> <a href="https://wolvic.com/">Wolvic</a> see this <a href="https://blog.mozilla.org/en/mozilla/news/update-on-firefox-reality/">article</a></li>
</ul>
</li>
</ul>
</section>
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<h1 id="vision"><a href="https://github.com/immersive-web/computer-vision">Vision</a></h1>
<ul>
<li><a href="https://docs.opencv.org/master/d5/d10/tutorial_js_root.html">OpenCV.js</a> : official JS port (wasm via emscripten)