tests/ref-space-invert.html - external/github.com/immersive-web/webxr-samples - Git at Google

 <!doctype html>
 <!--
 Copyright 2019 The Immersive Web Community Group

 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
 the Software without restriction, including without limitation the rights to
 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 the Software, and to permit persons to whom the Software is furnished to do so,
 subject to the following conditions:

 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 -->
 <html>
   <head>
     <meta charset='utf-8'>
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
     <link rel='icon' type='image/png' sizes='32x32' href='../favicon-32x32.png'>
     <link rel='icon' type='image/png' sizes='96x96' href='../favicon-96x96.png'>
     <link rel='stylesheet' href='../css/common.css'>

     <title>Reference Space Invert</title>
   </head>
   <body>
     <header>
       <details id='details-panel' open>
         <summary>Reference Space Invert</summary>
         <p>
           Tests creating an offset reference space with the viewer pose, which
           should cancel out the pose. While a select event is engaged the viewer
           should appear locked at the origin looking directly at a checkmark
           image.
           <a class="back" href="./">Back</a>
         </p>
       </details>
     </header>
     <main style='text-align: center;'>
       <p>Click 'Enter XR' to see content</p>
     </main>
     <script type="module">
       import {WebXRButton} from '../js/util/webxr-button.js';
       import {Scene} from '../js/render/scenes/scene.js';
       import {Renderer, createWebGLContext, RenderView} from '../js/render/core/renderer.js';
       import {Gltf2Node} from '../js/render/nodes/gltf2.js';
       import {UrlTexture} from '../js/render/core/texture.js';
       import {ButtonNode} from '../js/render/nodes/button.js';
       import {QueryArgs} from '../js/util/query-args.js';
       import {mat4} from '../js/render/math/gl-matrix.js';

       // If requested, use the polyfill to provide support for mobile devices
       // and devices which only support WebVR.
       import WebXRPolyfill from '../js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
       if (QueryArgs.getBool('usePolyfill', true)) {
         let polyfill = new WebXRPolyfill();
       }

       // XR globals.
       let xrButton = null;
       let xrFloorSpace = null;
       let useInvertedSpace = false;
       let invertedReferenceSpace = null;

       // WebGL scene globals.
       let gl = null;
       let renderer = null;
       let scene = new Scene();
       scene.addNode(new Gltf2Node({url: '../media/gltf/cube-room/cube-room.gltf'}));
       scene.standingStats(true);

       let playButton = new ButtonNode(new UrlTexture('../media/textures/check-button.png'), () => {});
       playButton.translation = [0, 0, -0.5];
       scene.addNode(playButton);

       function initXR() {
         xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);

         if (navigator.xr) {
           navigator.xr.isSessionSupported('immersive-vr').then((supported) => {
             xrButton.enabled = supported;
           });
         }
       }

       function initGL() {
         if (gl)
           return;

         gl = createWebGLContext({
           xrCompatible: true
         });

         document.body.appendChild(gl.canvas);

         function onResize() {
           gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
           gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
         }
         window.addEventListener('resize', onResize);
         onResize();

         // Set up a non-black clear color so that we can see if something renders wrong.
         gl.clearColor(0.1, 0.2, 0.3, 1.0);

         renderer = new Renderer(gl);
         scene.setRenderer(renderer);
       }

       function onRequestSession() {
         return navigator.xr.requestSession('immersive-vr', {
             requiredFeatures: ['local-floor'],
         }).then((session) => {
           xrButton.setSession(session);
           session.isImmersive = true;
           onSessionStarted(session);
         });
       }

       async function onSessionStarted(session) {
         session.addEventListener('end', onSessionEnded);

         initGL();
         scene.inputRenderer.useProfileControllerMeshes(session);

         session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });

         xrFloorSpace = await session.requestReferenceSpace('local-floor');

         session.addEventListener('selectstart', () => {
           useInvertedSpace = true;
         });

         session.addEventListener('selectend', () => {
           useInvertedSpace = false;
           invertedReferenceSpace = null;
         });

         session.requestAnimationFrame(onXRFrame);
       }

       function onEndSession(session) {
         session.end();
       }

       function onSessionEnded(event) {
         xrButton.setSession(null);
       }

       let tmpMat = mat4.create();
       function onXRFrame(t, frame) {
         let session = frame.session;

         let pose;

         if (useInvertedSpace) {
           pose = frame.getViewerPose(xrFloorSpace);
           invertedReferenceSpace = xrFloorSpace.getOffsetReferenceSpace(pose.transform);
           pose = frame.getViewerPose(invertedReferenceSpace);
         } else {
           pose = frame.getViewerPose(xrFloorSpace);
         }

         scene.startFrame();

         session.requestAnimationFrame(onXRFrame);

         scene.updateInputSources(frame, xrFloorSpace);

         scene.drawXRFrame(frame, pose);

         scene.endFrame();
       }

       // Start the XR application.
       initXR();
     </script>
   </body>
 </html>
	<!doctype html>
	<!--
	Copyright 2019 The Immersive Web Community Group

	Permission is hereby granted, free of charge, to any person obtaining a copy of
	this software and associated documentation files (the "Software"), to deal in
	the Software without restriction, including without limitation the rights to
	use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
	the Software, and to permit persons to whom the Software is furnished to do so,
	subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all
	copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
	FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
	COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
	IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	-->
	<html>
	<head>
	<meta charset='utf-8'>
	<meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
	<meta name='mobile-web-app-capable' content='yes'>
	<meta name='apple-mobile-web-app-capable' content='yes'>
	<link rel='icon' type='image/png' sizes='32x32' href='../favicon-32x32.png'>
	<link rel='icon' type='image/png' sizes='96x96' href='../favicon-96x96.png'>
	<link rel='stylesheet' href='../css/common.css'>

	<title>Reference Space Invert</title>
	</head>
	<body>
	<header>
	<details id='details-panel' open>
	<summary>Reference Space Invert</summary>
	<p>
	Tests creating an offset reference space with the viewer pose, which
	should cancel out the pose. While a select event is engaged the viewer
	should appear locked at the origin looking directly at a checkmark
	image.
	<a class="back" href="./">Back</a>
	</p>
	</details>
	</header>
	<main style='text-align: center;'>
	<p>Click 'Enter XR' to see content</p>
	</main>
	<script type="module">
	import {WebXRButton} from '../js/util/webxr-button.js';
	import {Scene} from '../js/render/scenes/scene.js';
	import {Renderer, createWebGLContext, RenderView} from '../js/render/core/renderer.js';
	import {Gltf2Node} from '../js/render/nodes/gltf2.js';
	import {UrlTexture} from '../js/render/core/texture.js';
	import {ButtonNode} from '../js/render/nodes/button.js';
	import {QueryArgs} from '../js/util/query-args.js';
	import {mat4} from '../js/render/math/gl-matrix.js';

	// If requested, use the polyfill to provide support for mobile devices
	// and devices which only support WebVR.
	import WebXRPolyfill from '../js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
	if (QueryArgs.getBool('usePolyfill', true)) {
	let polyfill = new WebXRPolyfill();
	}

	// XR globals.
	let xrButton = null;
	let xrFloorSpace = null;
	let useInvertedSpace = false;
	let invertedReferenceSpace = null;

	// WebGL scene globals.
	let gl = null;
	let renderer = null;
	let scene = new Scene();
	scene.addNode(new Gltf2Node({url: '../media/gltf/cube-room/cube-room.gltf'}));
	scene.standingStats(true);

	let playButton = new ButtonNode(new UrlTexture('../media/textures/check-button.png'), () => {});
	playButton.translation = [0, 0, -0.5];
	scene.addNode(playButton);

	function initXR() {
	xrButton = new WebXRButton({
	onRequestSession: onRequestSession,
	onEndSession: onEndSession
	});
	document.querySelector('header').appendChild(xrButton.domElement);

	if (navigator.xr) {
	navigator.xr.isSessionSupported('immersive-vr').then((supported) => {
	xrButton.enabled = supported;
	});
	}
	}

	function initGL() {
	if (gl)
	return;

	gl = createWebGLContext({
	xrCompatible: true
	});

	document.body.appendChild(gl.canvas);

	function onResize() {
	gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
	gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
	}
	window.addEventListener('resize', onResize);
	onResize();

	// Set up a non-black clear color so that we can see if something renders wrong.
	gl.clearColor(0.1, 0.2, 0.3, 1.0);

	renderer = new Renderer(gl);
	scene.setRenderer(renderer);
	}

	function onRequestSession() {
	return navigator.xr.requestSession('immersive-vr', {
	requiredFeatures: ['local-floor'],
	}).then((session) => {
	xrButton.setSession(session);
	session.isImmersive = true;
	onSessionStarted(session);
	});
	}

	async function onSessionStarted(session) {
	session.addEventListener('end', onSessionEnded);

	initGL();
	scene.inputRenderer.useProfileControllerMeshes(session);

	session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });

	xrFloorSpace = await session.requestReferenceSpace('local-floor');

	session.addEventListener('selectstart', () => {
	useInvertedSpace = true;
	});

	session.addEventListener('selectend', () => {
	useInvertedSpace = false;
	invertedReferenceSpace = null;
	});

	session.requestAnimationFrame(onXRFrame);
	}

	function onEndSession(session) {
	session.end();
	}

	function onSessionEnded(event) {
	xrButton.setSession(null);
	}

	let tmpMat = mat4.create();
	function onXRFrame(t, frame) {
	let session = frame.session;

	let pose;

	if (useInvertedSpace) {
	pose = frame.getViewerPose(xrFloorSpace);
	invertedReferenceSpace = xrFloorSpace.getOffsetReferenceSpace(pose.transform);
	pose = frame.getViewerPose(invertedReferenceSpace);
	} else {
	pose = frame.getViewerPose(xrFloorSpace);
	}

	scene.startFrame();

	session.requestAnimationFrame(onXRFrame);

	scene.updateInputSources(frame, xrFloorSpace);

	scene.drawXRFrame(frame, pose);

	scene.endFrame();
	}

	// Start the XR application.
	initXR();
	</script>
	</body>
	</html>