Globe with Multiple Markers

15/02/2019 #Ar.js
Ar.js Masic Cube Effect 예제

코드

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<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
    <title>Hello Cube</title>
    
    <!-- include three.js -->
    <script type="text/javascript" src="../../lib/threejs/build/three.js"></script>
    
    <!-- inclde jsartookit -->
    <script type="text/javascript" src="../../lib/jsartoolkit5/artoolkit.min.js"></script>
    <script type="text/javascript" src="../../lib/jsartoolkit5/artoolkit.api.js"></script>
    
    <!-- include threex.artoolkit -->
    <script type="text/javascript" src="../../lib/threex/threex-artoolkitsource.js"></script>
    <script type="text/javascript" src="../../lib/threex/threex-artoolkitcontext.js"></script>
    <script type="text/javascript" src="../../lib/threex/threex-arbasecontrols.js"></script>
    <script type="text/javascript" src="../../lib/threex/threex-armarkercontrols.js"></script>
    
</head>
<body style='margin : 0px; overflow: hidden; font-family: monospace;'>
<script type="text/javascript">
var scene, camera, renderer, clock, deltaTime, totalTime;
 
var  arToolkitSource, arToolkitContext;
 
var markerNames, markerArray, currentMarkerName;
 
var sceneGroup;
 
var globe;
 
initialize(); 
animate();
 
function initialize(){
    scene = new THREE.Scene();    // 씬 생성 
    
    // 조명 생성
    let ambientLight = new THREE.AmbientLight(0xcccccc, 0.5);
    scene.add(ambientLight);
    
    // 카메라 생성
    camera = new THREE.Camera();
    scene.add(camera);
    
    // 랜더러 생성
    renderer = new THREE.WebGLRenderer({
        antialias: true,
        alpha: true
    });
    
    // 랜더러 설정 및 도큐먼트에 추가 
    renderer.setClearColor(new THREE.Color('lightgrey'), 0);
    renderer.setSize(640, 480);
    renderer.domElement.style.position = 'absolute';
    renderer.domElement.style.top = '0px';
    renderer.domElement.style.left = '0px';
    document.body.appendChild(renderer.domElement);
    
    // 클락 생성 및 타임 설정 
    clock = new THREE.Clock();
    deltaTime = 0; 
    totalTime = 0; 
    
    // ArToolkitSouce 설정
    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();
    });
    
    window.addEventListener('resize', function(){
        onResize();
    });
    
    // ArToolkitContext 세팅
    
    // ArToolkitContext 생성 
    arToolkitContext = new THREEx.ArToolkitContext({
        cameraParametersUrl: 'data/camera_para.dat',
        detectionMode: 'mono'
    });
    
    arToolkitContext.init(function onCompleted(){
        camera.projectionMatrix.copy(arToolkitContext.getProjectionMatrix());
    });
    
    // MarkerRoots 세팅 
    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);
    }
    
    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(){
    
    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]
            }
            
            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];
    
    for(let i=1; i<markerArray.length; i++){
        let currentMarker = markerArray[i];
        let currentGroup = currentMarker.children[0];
        if(baseMarker.visible && currentMarker.visible){
            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>
Colored by Color Scripter
cs
마커 이미지

이 예제는 카메라로 마커이미지 A와 B를 비춰야 정상적으로 실행 할 수 있습니다.