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globe-multi-marker.html
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globe-multi-marker.html
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<!DOCTYPE html>
<head>
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<title>Hello, world!</title>
<script src='js/keyboard.js'></script>
<!-- include three.js library -->
<script src='js/three.js'></script>
<!-- include jsartookit -->
<script src="jsartoolkit5/artoolkit.min.js"></script>
<script src="jsartoolkit5/artoolkit.api.js"></script>
<!-- include threex.artoolkit -->
<script src="threex/threex-artoolkitsource.js"></script>
<script src="threex/threex-artoolkitcontext.js"></script>
<script src="threex/threex-arbasecontrols.js"></script>
<script src="threex/threex-armarkercontrols.js"></script>
</head>
<body style='margin : 0px; overflow: hidden; font-family: Monospace;'>
<!--
Example created by Lee Stemkoski: https://github.com/stemkoski
Based on the AR.js library and examples created by Jerome Etienne: https://github.com/jeromeetienne/AR.js/
-->
<script>
var scene, camera, renderer, clock, deltaTime, totalTime, keyboard;
var arToolkitSource, arToolkitContext;
var markerNames, markerArray, currentMarkerName;
var sceneGroup;
var globe;
initialize();
animate();
function initialize()
{
scene = new THREE.Scene();
let ambientLight = new THREE.AmbientLight( 0xcccccc, 0.5 );
scene.add( ambientLight );
camera = new THREE.Camera();
scene.add(camera);
renderer = new THREE.WebGLRenderer({
antialias : true,
alpha: true
});
renderer.setClearColor(new THREE.Color('lightgrey'), 0)
renderer.setSize( 800, 600 );
renderer.domElement.style.position = 'absolute'
renderer.domElement.style.top = '0px'
renderer.domElement.style.left = '0px'
document.body.appendChild( renderer.domElement );
clock = new THREE.Clock();
deltaTime = 0;
totalTime = 0;
keyboard = new Keyboard();
////////////////////////////////////////////////////////////
// setup arToolkitSource
////////////////////////////////////////////////////////////
arToolkitSource = new THREEx.ArToolkitSource({
sourceType : 'webcam',
});
function onResize()
{
arToolkitSource.onResize()
arToolkitSource.copySizeTo(renderer.domElement)
if ( arToolkitContext.arController !== null )
{
arToolkitSource.copySizeTo(arToolkitContext.arController.canvas)
}
}
arToolkitSource.init(function onReady(){
onResize()
});
// handle resize event
window.addEventListener('resize', function(){
onResize()
});
////////////////////////////////////////////////////////////
// setup arToolkitContext
////////////////////////////////////////////////////////////
// create atToolkitContext
arToolkitContext = new THREEx.ArToolkitContext({
cameraParametersUrl: 'data/camera_para.dat',
detectionMode: 'mono',
maxDetectionRate: 30,
});
// copy projection matrix to camera when initialization complete
arToolkitContext.init( function onCompleted(){
camera.projectionMatrix.copy( arToolkitContext.getProjectionMatrix() );
});
////////////////////////////////////////////////////////////
// setup markerRoots
////////////////////////////////////////////////////////////
markerNames = ["kanji", "letterA", "letterB"];
markerArray = [];
for (let i = 0; i < markerNames.length; i++)
{
let marker = new THREE.Group();
scene.add(marker);
markerArray.push(marker);
let markerControls = new THREEx.ArMarkerControls(arToolkitContext, marker, {
type: 'pattern', patternUrl: "data/" + markerNames[i] + ".patt",
});
let markerGroup = new THREE.Group();
marker.add(markerGroup);
}
////////////////////////////////////////////////////////////
// setup scene
////////////////////////////////////////////////////////////
sceneGroup = new THREE.Group();
let loader = new THREE.TextureLoader();
let geometry1 = new THREE.SphereGeometry(1, 32,32);
let texture = loader.load( 'images/earth-sphere.jpg' );
let material1 = new THREE.MeshLambertMaterial( { map: texture, opacity: 0.75 } );
globe = new THREE.Mesh( geometry1, material1 );
globe.position.y = 1;
sceneGroup.add(globe);
markerArray[0].children[0].add( sceneGroup );
currentMarkerName = markerNames[0];
let pointLight = new THREE.PointLight( 0xffffff, 1, 50 );
camera.add( pointLight );
}
function update()
{
keyboard.update();
globe.rotation.y += 0.01;
let anyMarkerVisible = false;
for (let i = 0; i < markerArray.length; i++)
{
if ( markerArray[i].visible )
{
anyMarkerVisible = true;
markerArray[i].children[0].add( sceneGroup );
if ( currentMarkerName != markerNames[i] )
{
currentMarkerName = markerNames[i];
// console.log("Switching to " + currentMarkerName);
}
let p = markerArray[i].children[0].getWorldPosition();
let q = markerArray[i].children[0].getWorldQuaternion();
let s = markerArray[i].children[0].getWorldScale();
let lerpAmount = 0.5;
scene.add(sceneGroup);
sceneGroup.position.lerp(p, lerpAmount);
sceneGroup.quaternion.slerp(q, lerpAmount);
sceneGroup.scale.lerp(s, lerpAmount);
break;
}
}
if ( !anyMarkerVisible )
{
// console.log("No marker currently visible.");
}
let baseMarker = markerArray[0];
// update relative positions of markers
for (let i = 1; i < markerArray.length; i++)
{
let currentMarker = markerArray[i];
let currentGroup = currentMarker.children[0];
if ( baseMarker.visible && currentMarker.visible )
{
// console.log("updating marker " + i " -> base offset");
let relativePosition = currentMarker.worldToLocal( baseMarker.position.clone() );
currentGroup.position.copy( relativePosition );
let relativeRotation = currentMarker.quaternion.clone().inverse().multiply( baseMarker.quaternion.clone() );
currentGroup.quaternion.copy( relativeRotation );
}
}
// update artoolkit on every frame
if ( arToolkitSource.ready !== false )
arToolkitContext.update( arToolkitSource.domElement );
}
function render()
{
renderer.render( scene, camera );
}
function animate()
{
requestAnimationFrame(animate);
deltaTime = clock.getDelta();
totalTime += deltaTime;
update();
render();
}
</script>
</body>
</html>