OrbitControls & Resize

buttons

by 林 羿緯

HTML

<div id="info">My Second Three.js
  <br/> turning, buttons, orbitControls, resize
  <br/>
  <br/>
  <button id="toggle" style="width:20%">Toggle Turn</button>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r78/three.min.js"></script>
<script src="https://threejs.org/examples/js/controls/OrbitControls.js">


</script>
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>

CSS

#info {
  position: absolute;
  top: 2%;
  width: 100%;
  padding: 10px;
  text-align: center;
  color: #ffff00
}

body {
  overflow: hidden;
}

JavaScript

var scene, renderer, camera;
var controls;
var mesh, angle = 0,
  turn = false;
var hue = 0;

init();
animate();

$("#toggle").click(function() {
  turn = !turn;
});

function init() {
  scene = new THREE.Scene();
  renderer = new THREE.WebGLRenderer();
  renderer.setSize(window.innerWidth, window.innerHeight);
  renderer.setClearColor(0x888888);
  document.body.appendChild(renderer.domElement);

  camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
  camera.position.z = 500;
  controls = new THREE.OrbitControls(camera, renderer.domElement);

  var geometry = new THREE.RingGeometry(10, 25, 32);

  var material = new THREE.MeshBasicMaterial({
    color: 0xffff00,
    //side: THREE.DoubleSide
  });
  mesh = new THREE.Mesh(geometry, material);
  scene.add(mesh);

  var gridXZ = new THREE.GridHelper(100, 10, 'red', 'white');
  //scene.add(gridXZ);

  window.addEventListener('resize', onWindowResize, false);
}

function onWindowResize() {
  camera.aspect = window.innerWidth / window.innerHeight;
  camera.updateProjectionMatrix();
  renderer.setSize(window.innerWidth, window.innerHeight);
}

function animate() {
  controls.update();
  if (turn) {
    angle += 0.01;
  	angle %= Math.PI*2;
  }
  mesh.geometry = new THREE.RingGeometry (10, 25, 32, 2, Math.PI/2, angle)

  // mesh.material.color.setHSL (hue, hue, .8)
  requestAnimationFrame(animate);
  renderer.render(scene, camera);
}