Basic

by ikatyang

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r81/three.min.js"></script>
<script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>

CSS

body {
  margin: 0;
  overflow: hidden;
}

JavaScript

var scene, camera, renderer, controls;

init();
animate();

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

  camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
  camera.position.set(0, 200, 200);

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

  controls = new THREE.OrbitControls(camera, renderer.domElement);

  var gridXZ = new THREE.GridHelper(100, 20, 0xff0000, 0xffffff);
  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();
  requestAnimationFrame(animate);
  renderer.render(scene, camera);
}