tire (hw3)

texture (cutout, bumpMap)

by jmchen

HTML

<div id="info">hw3 trial <br/> (no bump)</div>
<script src="http://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.min.js"></script>
<script src="https://dl.dropboxusercontent.com/u/3587259/Code/Threejs/OrbitControls.js">
    
</script>

CSS

#info {
    position: absolute;
    top: 0px;
    width: 100%;
    padding: 10px;
    text-align: center;
    color: #ffff00
}

JavaScript

var camera, scene, renderer, geometry, material, light, controls;
var angle = 0;
var tiremap, sidemap;
var clock = new THREE.Clock();
var car;

var Car = function () {
    this.vel = new THREE.Vector3();
    this.speed = 0;
    this.angle = 0;
    this.pos = new THREE.Vector3();
    this.object = buildTire(sidemap, tiremap);
}

Car.prototype.update = function (dt) {
    
    console.log ("speed: " + this.speed);
    // compute vel & pos
    var dir = new THREE.Vector3(1, 0, 0);
    dir.multiplyScalar(car.speed).applyAxisAngle(new THREE.Vector3(0, 1, 0), this.angle);
    this.vel.copy (dir);
    
    dir.multiplyScalar (dt)
    this.pos.add(dir);    

    console.log ("in car update");
}
/*
Car.prototype.render = function() {
}
*/
var buildTire = function (sidemap, tiremap) {
    var tire = new THREE.Object3D();
    var geometry = new THREE.CircleGeometry(50, 20);
    var material = new THREE.MeshBasicMaterial({
        map: sidemap,
        //transparent: true,  // for cut-out texture
        alphatest: 1;
        side: THREE.DoubleSide
    });
    
    var mesh = new THREE.Mesh(geometry, material);
tiremap.wrapS = tiremap.wrapT = THREE.RepeatWrapping; 
	tiremap.repeat.set( 8, 1 );
    var mesh2 = new THREE.Mesh(new THREE.CylinderGeometry(50, 50, 20, 30, 1, true), // only side
    new THREE.MeshBasicMaterial({
        map: tiremap,
        side: THREE.DoubleSide
    }));
    mesh2.rotation.x = Math.PI / 2;
    mesh.position.set(0, 0, 10);
    var mesh0 = mesh.clone();
    mesh0.position.set(0, 0, -10);
    mesh0.rotation.y = Math.PI;
    tire.add (mesh);
    tire.add(mesh0);
    tire.add(mesh2);
    tire.position.set (0,50,0);
    scene.add(tire);
    return tire; 
}

document.addEventListener('keydown', move);
init();
animate();


function init() {

    scene = new THREE.Scene();

    camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 10000);
    camera.position.z = 500;
    scene.add(camera);

    THREE.ImageUtils.crossOrigin =...