declarations
Version:
[](https://www.npmjs.com/package/declarations)
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JavaScript
/// <reference path="../../three.d.ts" />
/// <reference path="../three-tests-setup.ts" />
// https://github.com/mrdoob/three.js/blob/master/examples/webgl_interactive_cubes.html
(function () {
var container, stats;
var camera, scene, raycaster, renderer;
var mouse = new THREE.Vector2(), INTERSECTED;
var radius = 100, theta = 0;
init();
animate();
function init() {
container = document.createElement('div');
document.body.appendChild(container);
var info = document.createElement('div');
info.style.position = 'absolute';
info.style.top = '10px';
info.style.width = '100%';
info.style.textAlign = 'center';
info.innerHTML = '<a href="http://threejs.org" target="_blank">three.js</a> webgl - interactive cubes';
container.appendChild(info);
camera = new THREE.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 1, 10000);
scene = new THREE.Scene();
var light = new THREE.DirectionalLight(0xffffff, 1);
light.position.set(1, 1, 1).normalize();
scene.add(light);
var geometry = new THREE.BoxGeometry(20, 20, 20);
for (var i = 0; i < 2000; i++) {
var object = new THREE.Mesh(geometry, new THREE.MeshLambertMaterial({ color: Math.random() * 0xffffff }));
object.position.x = Math.random() * 800 - 400;
object.position.y = Math.random() * 800 - 400;
object.position.z = Math.random() * 800 - 400;
object.rotation.x = Math.random() * 2 * Math.PI;
object.rotation.y = Math.random() * 2 * Math.PI;
object.rotation.z = Math.random() * 2 * Math.PI;
object.scale.x = Math.random() + 0.5;
object.scale.y = Math.random() + 0.5;
object.scale.z = Math.random() + 0.5;
scene.add(object);
}
raycaster = new THREE.Raycaster();
renderer = new THREE.WebGLRenderer();
renderer.setClearColor(0xf0f0f0);
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.sortObjects = false;
container.appendChild(renderer.domElement);
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
container.appendChild(stats.domElement);
document.addEventListener('mousemove', onDocumentMouseMove, false);
//
window.addEventListener('resize', onWindowResize, false);
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
function onDocumentMouseMove(event) {
event.preventDefault();
mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
}
//
function animate() {
requestAnimationFrame(animate);
render();
stats.update();
}
function render() {
theta += 0.1;
camera.position.x = radius * Math.sin(THREE.Math.degToRad(theta));
camera.position.y = radius * Math.sin(THREE.Math.degToRad(theta));
camera.position.z = radius * Math.cos(THREE.Math.degToRad(theta));
camera.lookAt(scene.position);
camera.updateMatrixWorld();
// find intersections
raycaster.setFromCamera(mouse, camera);
var intersects = raycaster.intersectObjects(scene.children);
if (intersects.length > 0) {
if (INTERSECTED != intersects[0].object) {
if (INTERSECTED)
INTERSECTED.material.emissive.setHex(INTERSECTED.currentHex);
INTERSECTED = intersects[0].object;
INTERSECTED.currentHex = INTERSECTED.material.emissive.getHex();
INTERSECTED.material.emissive.setHex(0xff0000);
}
}
else {
if (INTERSECTED)
INTERSECTED.material.emissive.setHex(INTERSECTED.currentHex);
INTERSECTED = null;
}
renderer.render(scene, camera);
}
});