rotate on world axis
by jscastro76
HTML
<script src="https://threejs.org/build/three.js"></script>
<script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>
<canvas id="myCanvas"/>
CSS
body {
background-color: #fff;
margin: 0px;
overflow: hidden;
}
JavaScript
var mesh, renderer, cylinder,
scene, r, g,
controls,
camera,
container = document.getElementById('myCanvas');
//RENDERER
renderer = new THREE.WebGLRenderer({
canvas: container,
antialias: true
});
//renderer.setClearColor(0x000000);
renderer.setPixelRatio(window.devicePixelRatio); //device pixel ratio
renderer.setSize(window.innerWidth, window.innerHeight); //canvas size
init();
animate();
function init() {
scene = new THREE.Scene();
scene.background = new THREE.Color(0x999999);
var light = new THREE.AmbientLight(0xffffff, 1);
light.position.set(0.5, 1.0, 0.5).normalize();
scene.add(light);
camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.fromArray([-20, 10, -140]);
scene.add(camera);
controls = new THREE.OrbitControls(camera, container);
let g = new THREE.Group();
scene.add(g);
//g.updateWorldMatrix(true);
var gridHelper = new THREE.GridHelper(400, 40, 0x0000ff, 0x808080);
gridHelper.position.y = 0;
gridHelper.position.x = 0;
scene.add(gridHelper);
scene.add(new THREE.AxesHelper(20))
cylinder = new THREE.Mesh(new THREE.CylinderBufferGeometry(10, 10, 10), new THREE.MeshStandardMaterial({
color: 0xFF0000
}))
cylinder.position.set(30, 0, 30)
g.add(cylinder);
g.rotateOnWorldAxis(new THREE.Vector3(0, 0, 1), Math.PI / 2)
}
function animate() {
r = 0.8;
//cylinder.rotation.z += r;
g.rotateOnWorldAxis(new THREE.Vector3(0, 0, 1), Math.PI * r / 180);
renderer.render(scene, camera);
requestAnimationFrame(animate);
}