Refraction

Ar.js Refraction 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 id="vertexShader" type="x-shader/x-vertex">
uniform float refractionRatio;
varying vec3 vRefract;
 
void main(){
    vec4 mPosition = modelMatrix * vec4(position, 1.0);
    vec3 nWorld = normalize(mat3(modelMatrix[0].xyz, modelMatrix[1].xyz, modelMatrix[2].xyz) * normal);
    vRefract = normalize(refract(normalize(mPosition.xyz - cameraPosition), nWorld, refractionRatio));
    gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
}
</script>
 
<script id="fragmentShader" type="x-shader/x-vertex">
uniform sampler2D texture;
varying vec3 vRefract;
uniform float distance;
uniform float opacity;
uniform vec3 tint;
 
void main(){
    vec2 p = vec2(vRefract.x * distance + 0.5, vRefract.y * distance + 0.5);
    p = vec2(1.01.0- p;
    vec3 color = texture2D(texture, p).rgb;
    gl_FragColor = vec4(color, opacity) * vec4(tint, 1.0);
}
</script>
 
<script type="text/javascript">
var scene, camera, renderer, clock, deltaTime, totalTime;
 
var  arToolkitSource, arToolkitContext;
 
var markerRoot1;
 
var material1, refractMesh;
 
initialize(); 
animate();
 
function initialize(){
    scene = new THREE.Scene();    // 씬 생성 
    
    // 조명 생성
    let ambientLight = new THREE.AmbientLight(0xcccccc0.5);
    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(640480);
    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 
    markerRoot1 = new THREE.Group();
    scene.add(markerRoot1);
    
    let markerControls1 = new THREEx.ArMarkerControls(arToolkitContext, markerRoot1, {
        type: 'pattern',
        patternUrl: 'data/hiro.patt'
    });
    
    let loader = new THREE.TextureLoader();
 
    let videoTexture = new THREE.VideoTexture(arToolkitSource.domElement);
    videoTexture.minFilter = THREE.LinearFilter;
    
    let refractMaterial = new THREE.ShaderMaterial({
        uniforms:{
            texture: { value: videoTexture },
            refractionRatio: { value: 0.75 },
            distance: { value: 1.0 },
            opacity: { value: 0.8 },
            tint: { value: new THREE.Vector3(0.80.81.0)}
        },
        vertexShader: document.getElementById'vertexShader' ).textContent,
        fragmentShader: document.getElementById'fragmentShader' ).textContent,
        transparent: true
    });
    
    refractMesh = new THREE.Mesh(
        new THREE.TorusKnotGeometry(10.412816),
        refractMaterial
    );
    
    refractMesh.position.y = 1;
    
    markerRoot1.add( refractMesh );
}
 
function update(){
    //update artoolkit on every frame
    if(arToolkitSource.ready !== false){
        arToolkitContext.update(arToolkitSource.domElement);
    }
    
    refractMesh.rotation.y -= 0.01;
}
 
function render(){
    renderer.render(scene, camera);
}
 
function animate(){
    requestAnimationFrame(animate);
    deltaTime = clock.getDelta();
    totalTime += deltaTime;
    update();
    render();
}
</script>
</body>
</html>
cs

마커 이미지

마커이미지 이 예제는 카메라마커이미지 Hiro를 비춰야 정상적으로 실행 할 수 있습니다.