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<!DOCTYPE html>
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<!-- three.js library -->
<script src='vendor/three.js/build/three.js'></script>
<script src='vendor/three.js/examples/js/controls/VRControls.js'></script>
<script src='vendor/three.js/examples/js/effects/VREffect.js'></script>
<script src='vendor/webvr-polyfill.js'></script>
<script src="vendor/three.js/examples/js/libs/stats.min.js"></script>
<!-- jsartookit -->
<script src="../vendor/jsartoolkit5/build/artoolkit.min.js"></script>
<script src="../vendor/jsartoolkit5/js/artoolkit.api.js"></script>
<!-- include threex.artoolkit -->
<script src="../src/threex/threex-artoolkitsource.js"></script>
<script src="../src/threex/threex-artoolkitcontext.js"></script>
<script src="../src/threex/threex-artoolkitprofile.js"></script>
<script src="../src/threex/threex-arbasecontrols.js"></script>
<script src="../src/threex/threex-armarkercontrols.js"></script>
<script src="../src/threex/threex-arvideoinwebgl.js"></script>
<script>THREEx.ArToolkitContext.baseURL = '../'</script>
<body style='margin : 0px; overflow: hidden; font-family: Monospace;'><div style='position: absolute; top: 10px; width:100%; text-align: center;z-index:1';>
<a href="https://github.com/jeromeetienne/AR.js/" target="_blank">AR.js</a> - WebVR for AR
- <a href="https://medium.com/arjs/webvr-for-augmented-reality-f1e69a505902" target="_blank">Blog Post</a>
- by <a href='https://twitter.com/jerome_etienne' target='_blank'>@jerome_etienne</a>
<br/>
Useful for phone-in-hmd usecase - work in progress
- Press p to toggle webvr present
</div><script>
//////////////////////////////////////////////////////////////////////////////////
// Init
//////////////////////////////////////////////////////////////////////////////////
// init renderer
var renderer = new THREE.WebGLRenderer({
// antialias : true,
alpha: true
});
renderer.setClearColor(new THREE.Color('lightgrey'), 0)
// renderer.setPixelRatio( 2 );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.domElement.style.position = 'absolute'
renderer.domElement.style.top = '0px'
renderer.domElement.style.left = '0px'
document.body.appendChild( renderer.domElement );
// array of functions for the rendering loop
var onRenderFcts= [];
// init scene and camera
var scene = new THREE.Scene();
var ambient = new THREE.AmbientLight( 0x666666 );
scene.add( ambient );
var directionalLight = new THREE.DirectionalLight( 0x887766 );
directionalLight.position.set( -1, 1, 1 ).normalize();
scene.add( directionalLight );
//////////////////////////////////////////////////////////////////////////////////
// Initialize a basic camera
//////////////////////////////////////////////////////////////////////////////////
// Create a camera
// var camera = new THREE.Camera();
// scene.add(camera);
// Create a three.js camera.
var camera = new THREE.PerspectiveCamera(42, window.innerWidth / window.innerHeight, 0.1, 100);
scene.add(camera);
//////////////////////////////////////////////////////////////////////////////
// Code Separator
//////////////////////////////////////////////////////////////////////////////
// Apply VR stereo rendering to renderer.
var vrEffect = null
if( true ){
vrEffect = new THREE.VREffect(renderer);
vrEffect.setSize(window.innerWidth, window.innerHeight);
}
// Get the VRDisplay and save it for later.
var vrDisplay = null;
navigator.getVRDisplays().then(function(displays){
if (displays.length > 0) {
vrDisplay = displays[0];
}
});
window.addEventListener('vrdisplaypresentchange', function onVRDisplayPresentChange() {
onResize();
});
function togglePresent(){
if( vrDisplay.capabilities.canPresent === false ){
alert('You vr display can not present!')
return
}
if( vrDisplay.isPresenting ){
vrDisplay.exitPresent()
}else{
vrDisplay.requestPresent([{source: renderer.domElement}]);
}
}
document.body.addEventListener('keypress', function(event){
if( event.key === 'p' ) togglePresent()
})
document.body.addEventListener('click', function(event){
togglePresent()
})
// Resize the WebGL canvas when we resize and also when we change modes.
window.addEventListener('resize', onResize);
function onResize() {
// handle arToolkitSource resize
arToolkitSource.onResize(renderer.domElement)
// get width/height from arToolkitSource.domElement
var elementWidth = parseFloat( arToolkitSource.domElement.style.width.replace(/px$/,''), 10 )
var elementHeight = parseFloat( arToolkitSource.domElement.style.height.replace(/px$/,''), 10 )
if( vrEffect !== null ){
vrEffect.setSize(elementWidth, elementHeight);
}
if( camera instanceof THREE.PerspectiveCamera === true ){
camera.aspect = elementWidth / elementHeight;
camera.updateProjectionMatrix();
}
}
////////////////////////////////////////////////////////////////////////////////
// handle arToolkitSource
////////////////////////////////////////////////////////////////////////////////
var arToolkitSource = new THREEx.ArToolkitSource({
// to read from the webcam
sourceType : 'webcam',
// // to read from an image
// sourceType : 'image',
// sourceUrl : THREEx.ArToolkitContext.baseURL + '../data/images/img.jpg',
// // to read from a video
// sourceType : 'video',
// sourceUrl : THREEx.ArToolkitContext.baseURL + '../data/videos/headtracking.mp4',
})
arToolkitSource.init(function onReady(){
onResize()
})
////////////////////////////////////////////////////////////////////////////////
// initialize arToolkitContext
////////////////////////////////////////////////////////////////////////////////
// create atToolkitContext
var arToolkitContext = new THREEx.ArToolkitContext({
cameraParametersUrl: THREEx.ArToolkitContext.baseURL + '../data/data/camera_para.dat',
detectionMode: 'mono',
maxDetectionRate: 30,
canvasWidth: 80*3,
canvasHeight: 60*3,
})
// initialize it
arToolkitContext.init(function onCompleted(){
if( camera instanceof THREE.PerspectiveCamera === false ){
// copy projection matrix to camera
camera.projectionMatrix.copy( arToolkitContext.getProjectionMatrix() );
}
})
// update artoolkit on every frame
onRenderFcts.push(function(){
if( arToolkitSource.ready === false ) return
arToolkitContext.update( arToolkitSource.domElement )
})
////////////////////////////////////////////////////////////////////////////////
// Create a ArMarkerControls
////////////////////////////////////////////////////////////////////////////////
var markerRoot = new THREE.Group
scene.add(markerRoot)
var artoolkitMarker = new THREEx.ArMarkerControls(arToolkitContext, markerRoot, {
type : 'pattern',
patternUrl : THREEx.ArToolkitContext.baseURL + '../data/data/patt.hiro',
// patternUrl : THREEx.ArToolkitContext.baseURL + '../data/data/patt.kanji',
})
//////////////////////////////////////////////////////////////////////////////////
// build videoTexture
//////////////////////////////////////////////////////////////////////////////////
// get videoTexture
if( arToolkitSource.domElement.nodeName === 'VIDEO' ){
var videoTexture = new THREE.VideoTexture(arToolkitSource.domElement)
// arToolkitSource.domElement.pause()
}else if( arToolkitSource.domElement.nodeName === 'IMG' ){
var videoTexture = new THREE.Texture(arToolkitSource.domElement)
videoTexture.needsUpdate = true
}else console.assert(false)
// TODO to remove if webgl2 - better visual ?
videoTexture.minFilter = THREE.NearestFilter
//////////////////////////////////////////////////////////////////////////////
// plane always in front of the camera, exactly as big as the viewport
//////////////////////////////////////////////////////////////////////////////
var videoInWebgl = new THREEx.ArVideoInWebgl(videoTexture)
scene.add(videoInWebgl.object3d);
arToolkitSource.domElement.style.visibility = 'hidden'
// TODO extract the fov from the projectionMatrix
// camera.fov = 43.1
// camera.fov = 42
onRenderFcts.push(function(){
videoInWebgl.update(camera)
})
//////////////////////////////////////////////////////////////////////////////
// Code Separator
//////////////////////////////////////////////////////////////////////////////
// var video = arToolkitSource.domElement;
//
// window.addEventListener('resize', function(){
// updateSeeThruAspectUv(seethruPlane)
// })
// video.addEventListener('canplaythrough', function(){
// updateSeeThruAspectUv(seethruPlane)
// })
// function updateSeeThruAspectUv(plane){
//
// // if video isnt yet ready to play
// if( video.videoWidth === 0 || video.videoHeight === 0 ) return
//
// var faceVertexUvs = plane.geometry.faceVertexUvs[0]
// var screenAspect = window.innerWidth / window.innerHeight
// var videoAspect = video.videoWidth / video.videoHeight
//
// plane.geometry.uvsNeedUpdate = true
// if( screenAspect >= videoAspect ){
// var actualHeight = videoAspect / screenAspect;
// // faceVertexUvs y 0
// faceVertexUvs[0][1].y = 0.5 - actualHeight/2
// faceVertexUvs[1][0].y = 0.5 - actualHeight/2
// faceVertexUvs[1][1].y = 0.5 - actualHeight/2
// // faceVertexUvs y 1
// faceVertexUvs[0][0].y = 0.5 + actualHeight/2
// faceVertexUvs[0][2].y = 0.5 + actualHeight/2
// faceVertexUvs[1][2].y = 0.5 + actualHeight/2
// }else{
// var actualWidth = screenAspect / videoAspect;
// // faceVertexUvs x 0
// faceVertexUvs[0][0].x = 0.5 - actualWidth/2
// faceVertexUvs[0][1].x = 0.5 - actualWidth/2
// faceVertexUvs[1][0].x = 0.5 - actualWidth/2
//
// // faceVertexUvs x 1
// faceVertexUvs[0][2].x = 0.5 + actualWidth/2
// faceVertexUvs[1][1].x = 0.5 + actualWidth/2
// faceVertexUvs[1][2].x = 0.5 + actualWidth/2
// }
// }
//////////////////////////////////////////////////////////////////////////////////
// add an object in the scene
//////////////////////////////////////////////////////////////////////////////////
// add a torus knot
var geometry = new THREE.CubeGeometry(1,1,1);
var material = new THREE.MeshNormalMaterial({
transparent : true,
opacity: 0.5,
side: THREE.DoubleSide
});
var mesh = new THREE.Mesh( geometry, material );
mesh.position.y = geometry.parameters.height/2
markerRoot.add( mesh );
var geometry = new THREE.TorusKnotGeometry(0.3,0.1,64,16);
var material = new THREE.MeshNormalMaterial();
var mesh = new THREE.Mesh( geometry, material );
mesh.position.y = 0.5
markerRoot.add( mesh );
onRenderFcts.push(function(){
mesh.rotation.x += 0.1
})
//////////////////////////////////////////////////////////////////////////////////
// render the whole thing on the page
//////////////////////////////////////////////////////////////////////////////////
var stats = new Stats();
document.body.appendChild( stats.dom );
// render the scene
onRenderFcts.push(function(){
// Render the scene.
if( vrEffect !== null ){
vrEffect.render(scene, camera);
}else{
renderer.render( scene, camera );
}
stats.update();
})
// run the rendering loop
var lastTimeMsec= null
requestAnimationFrame(function animate(nowMsec){
// keep looping
requestAnimationFrame( animate );
// measure time
lastTimeMsec = lastTimeMsec || nowMsec-1000/60
var deltaMsec = Math.min(200, nowMsec - lastTimeMsec)
lastTimeMsec = nowMsec
// call each update function
onRenderFcts.forEach(function(onRenderFct){
onRenderFct(deltaMsec/1000, nowMsec/1000)
})
})
</script></body>