04-loadJSON.html


<!DOCTYPE html>
<html>
<head>
    <title>three.js webgl - JSON</title>
    <meta charset="utf-8">
    <script src="../frameworks/three.min.js"></script>
    <script src="../frameworks/dat.gui.min.js"></script>
    <style>
        body {
            margin: 0;
            overflow: hidden;
        }
    </style>
    <link rel="stylesheet" href="../samples/css/sample.css">
    <script src="../samples/js/sample.js"></script>
</head>
<script>

    var renderer;
    var scene;
    var camera;
    var clock;
    var control;
    
    var house;

    function init() {

        scene = new THREE.Scene();

        camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);

        renderer = new THREE.WebGLRenderer();
        renderer.setClearColor(0x63adef, 1.0);
        renderer.physicallyCorrectLights = true;
        renderer.gammaInput = true;
        renderer.gammaOutput = true;
        renderer.shadowMap.enabled = true;
        renderer.toneMapping = THREE.ReinhardToneMapping;
        renderer.setPixelRatio( window.devicePixelRatio );
        renderer.setSize( window.innerWidth, window.innerHeight );

        var textureLoader= new THREE.TextureLoader();
        var floorTexture=textureLoader.load("../data/graphics/textures/terrain/grass1.jpg");
        floorTexture.wrapS=THREE.RepeatWrapping;
        floorTexture.wrapT=THREE.RepeatWrapping;
        floorTexture.repeat.set(8,8);
        
        var planeGeometry = new THREE.PlaneGeometry(50, 50);
        var planeMaterial = new THREE.MeshPhongMaterial({color: 0xffffff, map:floorTexture});
        var plane = new THREE.Mesh(planeGeometry, planeMaterial);
        plane.receiveShadow = true;
        plane.rotation.x = -0.5 * Math.PI;
        plane.position.x = 0;
        plane.position.y = 0;
        plane.position.z = 0;
        scene.add(plane);

        camera.position.x = 1.5;
        camera.position.y = 2.5;
        camera.position.z = -6.5;
        camera.lookAt(new THREE.Vector3(0,2.5,0));

        var ambient = new THREE.AmbientLight(0xffffff,0.3);
        scene.add(ambient);
        
        var light = new THREE.DirectionalLight(0xffffff, 1, 100, 2 );
        light.position.set(10, 20 , 20); 
        light.castShadow = true;
        light.shadow.camera.near = 0;
        light.shadow.camera.far = 50; 
        light.shadow.mapSize.width = 3 * 512; 
        light.shadow.mapSize.height = 3 * 512;
        light.shadow.camera.top = 25; //X
        light.shadow.camera.right = 25;
        light.shadow.camera.left = -25;
        light.shadow.camera.bottom = -25;
        light.shadow.camera.visible = true;
        scene.add(light);

        control = new function() {
            this.opacity = 1;
            this.color = 0x086113;
            this.side=THREE.DoubleSide;
            this.cameraPos=0;
        };
        addControlGui(control);

        clock = new THREE.Clock();
        document.body.appendChild(renderer.domElement);

        loadJSON ("../data/models/json/house.json", scene, function (obj){
            house=obj;
            house.scale.x=house.scale.z=1.5;
            house.updateMatrix();
            render();
        });
		window.addEventListener('resize', handleResize, false);
        
    }

    function addControlGui(controlObject) {
        var gui = new dat.GUI();
        gui.add(controlObject, 'opacity', 0.1, 1);
        gui.add(controlObject, 'side', {
            "THREE.FrontSide" : THREE.FrontSide,
            "THREE.DoubleSide" : THREE.DoubleSide
        });
        gui.add(controlObject, 'cameraPos', {
            "inside" : 0,
            "outside" : 1
        });
    }

    function render() {

        var delta =  clock.getDelta();
        house.material.transparent = true;
        house.material.opacity = control.opacity;
        house.material.side= +control.side;

        if (control.cameraPos==0) {
            camera.position.x = 1.5;
            camera.position.y = 2.5;
            camera.position.z = -6.5;
            camera.lookAt(new THREE.Vector3(0,2.5,0));
        } else {
            camera.position.x = -17;
            camera.position.y = 9;
            camera.position.z = 17;
            camera.lookAt(scene.position);
        }
        
        requestAnimationFrame(render);
        renderer.render(scene, camera);
    }

    function loadJSON (fileOBJ, scene, fSuc, fFail) {
         var onProgress = function (xhr) {
                if (xhr.lengthComputable) {
                    var percentComplete = xhr.loaded / xhr.total * 100;
                    console.log(Math.round(percentComplete, 2) + '% downloaded');
                }
        };

        var onError = function (xhr) { 
            if (fFail) {fFail(xhr);}
            console.log('ERROR');
        };
        var loader = new THREE.JSONLoader();
        loader.load(fileOBJ, function(model, material) {
            var mesh = new THREE.Mesh(model, material[0]);
            mesh.castShadow = true;
            mesh.receiveShadow = true;
            scene.add(mesh);
            fSuc(mesh);
        }, onProgress, onError);

    };
    
    function handleResize() {
        camera.aspect = window.innerWidth / window.innerHeight;
        camera.updateProjectionMatrix();
        renderer.setSize(window.innerWidth, window.innerHeight);
    }

    window.onload = init;
    

</script>
<body>
</body>
</html>