[WebGL] Texture Basic

이번 예제는 Texture의 기본에 대해 알아보기 위한 것입니다.

Download Project

05-01-textures-basic.zip

 

Click here to view with full screen mode

Operations

Mouse Left Button Click & Drag: Camera Rotating

Mouse Wheel: Camera Zoom In & Out

Mouse Right Button Click & Drag: Camera Panning

main.js

// 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 cubeMesh, rotY, step;
 
init();
animate();
 
// FUNCTIONS         
function init() 
{
    // SCENE
    scene = new THREE.Scene();
 
    // CAMERA
    var SCREEN_WIDTH = window.innerWidth, SCREEN_HEIGHT = window.innerHeight;
    var VIEW_ANGLE = 45, ASPECT = SCREEN_WIDTH / SCREEN_HEIGHT, NEAR = 0.1, FAR = 20000;
    camera = new THREE.PerspectiveCamera( VIEW_ANGLE, ASPECT, NEAR, FAR);
    scene.add(camera);
    camera.position.set(0,150,400);
    camera.lookAt(scene.position);    
 
    // RENDERER
    if ( Detector.webgl )
        renderer = new THREE.WebGLRenderer( {antialias:true} );
    else
        renderer = new THREE.CanvasRenderer(); 
    renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
    container = document.getElementById( 'ThreeJS' );
    container.appendChild( renderer.domElement );
 
    // EVENTS
    THREEx.WindowResize(renderer, camera);
    THREEx.FullScreen.bindKey({ charCode : 'f'.charCodeAt(0) });
 
    // CONTROLS
    controls = new THREE.OrbitControls( camera, renderer.domElement );
 
    // STATS
    stats = new Stats();
    stats.domElement.style.position = 'absolute';
    stats.domElement.style.bottom = '0px';
    stats.domElement.style.zIndex = 100;
    container.appendChild( stats.domElement );
 
    // LIGHT
    var light = new THREE.PointLight(0xffffff);
    light.position.set(0,150,100);
    scene.add(light);
 
    // FLOOR
    var floorTexture = new THREE.ImageUtils.loadTexture( 'img/Wood_floor.jpg' );
    floorTexture.wrapS = floorTexture.wrapT = THREE.RepeatWrapping; 
    floorTexture.repeat.set( 1, 1 );
    var floorMaterial = new THREE.MeshBasicMaterial( { map: floorTexture, side: THREE.DoubleSide } );
    var floorGeometry = new THREE.PlaneGeometry(1000, 1000, 10, 10);
    var floor = new THREE.Mesh(floorGeometry, floorMaterial);
    floor.position.y = -0.5;
    floor.rotation.x = Math.PI / 2;
    scene.add(floor);
 
    // SKYBOX/FOG
    var skyBoxGeometry = new THREE.CubeGeometry( 10000, 10000, 10000 );
    var skyBoxMaterial = new THREE.MeshBasicMaterial( { color: 0xfcff00, side: THREE.BackSide } );
    var skyBox = new THREE.Mesh( skyBoxGeometry, skyBoxMaterial );
    scene.add(skyBox);
    scene.fog = new THREE.FogExp2( 0x9999ff, 0.00025 );
    
    ////////////
    // CUSTOM //
    ////////////
    // Cubes
    //   Note: when using a single image, it will appear on each of the faces.
    //   Six different images (one per face) may be used if desired.
    // create an array with six textures for a cool cube
    var materialArray = [];
    materialArray.push(new THREE.MeshBasicMaterial( { map: THREE.ImageUtils.loadTexture( 'img/nx.jpg' ) }));
    materialArray.push(new THREE.MeshBasicMaterial( { map: THREE.ImageUtils.loadTexture( 'img/px.jpg' ) }));
    materialArray.push(new THREE.MeshBasicMaterial( { map: THREE.ImageUtils.loadTexture( 'img/ny.jpg' ) }));
    materialArray.push(new THREE.MeshBasicMaterial( { map: THREE.ImageUtils.loadTexture( 'img/py/jpg' ) }));
    materialArray.push(new THREE.MeshBasicMaterial( { map: THREE.ImageUtils.loadTexture( 'img/nz.jpg' ) }));
    materialArray.push(new THREE.MeshBasicMaterial( { map: THREE.ImageUtils.loadTexture( 'img/pz.jpg' ) }));
    var cubeMaterial = new THREE.MeshFaceMaterial(materialArray);
    
    var cubeGeom = new THREE.CubeGeometry( 85, 85, 85, 1, 1, 1 );
    cubeMesh = new THREE.Mesh( cubeGeom, cubeMaterial );
    cubeMesh.position.set(0, 45, 100);
    step = Math.PI/180;
    rotY = 0;
    cubeMesh.rotation.y = rotY;
    scene.add( cubeMesh );
}
 
function animate() 
{
    requestAnimationFrame( animate );
    render();        
    update();
}
 
function update()
{
    rotY += step;
    cubeMesh.rotation.y = rotY;
 
    controls.update();
    stats.update();
}
 
function render() 
{
    renderer.render( scene, camera );
}