WebGL/hello.html at master · devendradhanal/WebGL · GitHub

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<!doctype html>
<html lang="en">

<head>
    <title>Hello World (Three.js)</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
    <link rel=stylesheet href="css/base.css" />
</head>

<body>

    <script src="js/Three.js"></script>
    <!-- // <script src="js/Detector.js"></script> -->
    <!-- // <script src="js/Stats.js"></script> -->
    <script src="js/OrbitControls.js"></script>
    <script src="js/THREEx.KeyboardState.js"></script>
    <script src="js/THREEx.FullScreen.js"></script>
    <script src="js/THREEx.WindowResize.js"></script>

    <!-- jQuery code to display an information button and box when clicked. -->
    <script src="js/jquery-1.9.1.js"></script>
    <script src="js/jquery-ui.js"></script>
    <link rel=stylesheet href="css/jquery-ui.css" />
    <link rel=stylesheet href="css/info.css" />
    <script src="js/info.js"></script>
    <div id="infoButton"></div>
    <div id="infoBox" title="Demo Information">
        This three.js demo is part of a collection at
        <a href="http://stemkoski.github.io/Three.js/">http://stemkoski.github.io/Three.js/</a>
    </div>
    <!-- ------------------------------------------------------------ -->

    <div id="ThreeJS" style="z-index: 1; position: absolute; left:0px; top:0px"></div>
    <script>
    /*
	Three.js "tutorials by example"
	Author: Lee Stemkoski
	Date: July 2013 (three.js v59dev)
 */


    //////////
    // MAIN //
    //////////

    // standard global variables
    var container, scene, camera, renderer, controls, stats;
    var keyboard = new THREEx.KeyboardState();
    var clock = new THREE.Clock();

    // custom global variables
    var cube;

    // initialization
    init();

    // animation loop / game loop
    animate();

    ///////////////
    // FUNCTIONS //
    ///////////////

    function init() {
        ///////////
        // SCENE //
        ///////////
        scene = new THREE.Scene();

        ////////////
        // CAMERA //
        ////////////

        // set the view size in pixels (custom or according to window size)
        // var SCREEN_WIDTH = 400, SCREEN_HEIGHT = 300;
        var SCREEN_WIDTH = window.innerWidth,
            SCREEN_HEIGHT = window.innerHeight;
        // camera attributes
        var VIEW_ANGLE = 45,
            ASPECT = SCREEN_WIDTH / SCREEN_HEIGHT,
            NEAR = 0.1,
            FAR = 20000;
        // set up camera
        camera = new THREE.PerspectiveCamera(VIEW_ANGLE, ASPECT, NEAR, FAR);
        // add the camera to the scene
        scene.add(camera);
        // the camera defaults to position (0,0,0)
        // 	so pull it back (z = 400) and up (y = 100) and set the angle towards the scene origin
        camera.position.set(0, 150, 400);
        camera.lookAt(scene.position);

        //////////////
        // RENDERER //
        //////////////

        // create and start the renderer; choose antialias setting.
        if (Detector.webgl)
            renderer = new THREE.WebGLRenderer({
                antialias: true
            });
        else
            renderer = new THREE.CanvasRenderer();

        renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);

        // attach div element to variable to contain the renderer
        container = document.getElementById('ThreeJS');
        // alternatively: to create the div at runtime, use:
        //   container = document.createElement( 'div' );
        //    document.body.appendChild( container );

        // attach renderer to the container div
        container.appendChild(renderer.domElement);

        ////////////
        // EVENTS //
        ////////////

        // automatically resize renderer
        THREEx.WindowResize(renderer, camera);
        // toggle full-screen on given key press
        THREEx.FullScreen.bindKey({
            charCode: 'm'.charCodeAt(0)
        });

        //////////////
        // CONTROLS //
        //////////////

        // move mouse and: left   click to rotate,
        //                 middle click to zoom,
        //                 right  click to pan
        controls = new THREE.OrbitControls(camera, renderer.domElement);

        ///////////
        // STATS //
        ///////////

        // displays current and past frames per second attained by scene
        stats = new Stats();
        stats.domElement.style.position = 'absolute';
        stats.domElement.style.bottom = '0px';
        stats.domElement.style.zIndex = 100;
        container.appendChild(stats.domElement);

        ///////////
        // LIGHT //
        ///////////

        // create a light
        var light = new THREE.PointLight(0xffffff);
        light.position.set(0, 250, 0);
        scene.add(light);
        var ambientLight = new THREE.AmbientLight(0x111111);
        // scene.add(ambientLight);

        //////////////
        // GEOMETRY //
        //////////////

        // most objects displayed are a "mesh":
        //  a collection of points ("geometry") and
        //  a set of surface parameters ("material")

        // Sphere parameters: radius, segments along width, segments along height
        var sphereGeometry = new THREE.SphereGeometry(50, 32, 16);
        // use a "lambert" material rather than "basic" for realistic lighting.
        //   (don't forget to add (at least one) light!)
        var sphereMaterial = new THREE.MeshLambertMaterial({
            color: 0x8888ff
        });
        var sphere = new THREE.Mesh(sphereGeometry, sphereMaterial);
        sphere.position.set(100, 50, -50);
        scene.add(sphere);

        // Create an array of materials to be used in a cube, one for each side
        var cubeMaterialArray = [];
        // order to add materials: x+,x-,y+,y-,z+,z-
        cubeMaterialArray.push(new THREE.MeshBasicMaterial({
            color: 0xff3333
        }));
        cubeMaterialArray.push(new THREE.MeshBasicMaterial({
            color: 0xff8800
        }));
        cubeMaterialArray.push(new THREE.MeshBasicMaterial({
            color: 0xffff33
        }));
        cubeMaterialArray.push(new THREE.MeshBasicMaterial({
            color: 0x33ff33
        }));
        cubeMaterialArray.push(new THREE.MeshBasicMaterial({
            color: 0x3333ff
        }));
        cubeMaterialArray.push(new THREE.MeshBasicMaterial({
            color: 0x8833ff
        }));
        var cubeMaterials = new THREE.MeshFaceMaterial(cubeMaterialArray);
        // Cube parameters: width (x), height (y), depth (z),
        //        (optional) segments along x, segments along y, segments along z
        var cubeGeometry = new THREE.CubeGeometry(100, 100, 100, 1, 1, 1);
        // using THREE.MeshFaceMaterial() in the constructor below
        //   causes the mesh to use the materials stored in the geometry
        cube = new THREE.Mesh(cubeGeometry, cubeMaterials);
        cube.position.set(-100, 50, -50);
        scene.add(cube);

        // create a set of coordinate axes to help orient user
        //    specify length in pixels in each direction
        var axes = new THREE.AxisHelper(100);
        scene.add(axes);

        ///////////
        // FLOOR //
        ///////////

        // note: 4x4 checkboard pattern scaled so that each square is 25 by 25 pixels.
        var floorTexture = new THREE.ImageUtils.loadTexture('images/checkerboard.jpg');
        floorTexture.wrapS = floorTexture.wrapT = THREE.RepeatWrapping;
        floorTexture.repeat.set(10, 10);
        // DoubleSide: render texture on both sides of mesh
        var floorMaterial = new THREE.MeshBasicMaterial({
            map: floorTexture,
            side: THREE.DoubleSide
        });
        var floorGeometry = new THREE.PlaneGeometry(1000, 1000, 1, 1);
        var floor = new THREE.Mesh(floorGeometry, floorMaterial);
        floor.position.y = -0.5;
        floor.rotation.x = Math.PI / 2;
        scene.add(floor);

        /////////
        // SKY //
        /////////

        // recommend either a skybox or fog effect (can't use both at the same time)
        // without one of these, the scene's background color is determined by webpage background

        // make sure the camera's "far" value is large enough so that it will render the skyBox!
        var skyBoxGeometry = new THREE.CubeGeometry(10000, 10000, 10000);
        // BackSide: render faces from inside of the cube, instead of from outside (default).
        var skyBoxMaterial = new THREE.MeshBasicMaterial({
            color: 0x9999ff,
            side: THREE.BackSide
        });
        var skyBox = new THREE.Mesh(skyBoxGeometry, skyBoxMaterial);
        // scene.add(skyBox);

        // fog must be added to scene before first render
        scene.fog = new THREE.FogExp2(0x9999ff, 0.00025);
    }

    function animate() {
        requestAnimationFrame(animate);
        render();
        update();
    }

    function update() {
        // delta = change in time since last call (in seconds)
        var delta = clock.getDelta();

        // functionality provided by THREEx.KeyboardState.js
        if (keyboard.pressed("1"))
            document.getElementById('message').innerHTML = ' Have a nice day! - 1';
        if (keyboard.pressed("2"))
            document.getElementById('message').innerHTML = ' Have a nice day! - 2 ';

        controls.update();
        stats.update();
    }

    function render() {
        renderer.render(scene, camera);
    }
    </script>

</body>

</html>