Many Lights Problem

pucks as point lights

by jmchen

HTML

<div id="info">Many Lights?!</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
}
body {
    overflow: hidden;
}

JavaScript

var camera, scene, renderer, geometry, material, mesh, controls;
var clock = new THREE.Clock();
//var puck, puck2;
var pucks = [];

var Puck = function () {
    this.vel = new THREE.Vector3();
    this.pos = new THREE.Vector3();
    this.pColor = new THREE.Color();
    this.mesh = new THREE.Mesh();
    this.pointLight = new THREE.PointLight();
};

Puck.prototype.update = function (dt) {
    this.pos.add(this.vel.clone().multiplyScalar(dt));

    this.mesh.position.copy(this.pos);
    this.pointLight.position.set(this.pos.x, 10, this.pos.z);
    this.pointLight.color = this.pColor;
    this.mesh.material.color = this.pColor;

};

Puck.prototype.collision = function () {
    // collision
    if (this.pos.x > 100) {
        this.pos.x = 100;
        this.vel.set(-this.vel.x, 0, this.vel.z);
        this.pColor.setHSL(Math.random(), Math.random(), Math.random() / 2 + 0.5);
    } else if (this.pos.x < -100) {
        this.pos.x = -100;
        this.vel.set(-this.vel.x, 0, this.vel.z);
        this.pColor.setHSL(Math.random(), Math.random(), Math.random() / 2 + 0.5);
    }
    if (this.pos.z > 100) {
        this.pos.z = 100;
        this.vel.set(this.vel.x, 0, -this.vel.z);
        this.pColor.setHSL(Math.random(), Math.random(), Math.random() / 2 + 0.5);
    } else if (this.pos.z < -100) {
        this.pos.z = -100;
        this.vel.set(this.vel.x, 0, -this.vel.z);
        this.pColor.setHSL(Math.random(), Math.random(), Math.random() / 2 + 0.5);
    }
}

init();
animate();

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

    camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
    camera.position.z = 500;
    scene.add(camera);

    geometry = new THREE.BoxGeometry(220, 30, 10);
    material = new THREE.MeshBasicMaterial({
        transparent: true,
        color: 0xffffff,
        opacity: 0.4
    });

    mesh = new THREE.Mesh(geometry, material);
    mesh.position.set(0, 15, 105);
    scene.add(mesh);
    mesh2 =...