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                <canvas id="bg"></canvas>

<section id='xrc'>
  <p>Pen by <a href="" target="_blank">XR Club</a></p>
  <a href="" target="_blank" >Exercise blog post</a>


                canvas {
    position: fixed;
    top: 0;
    left: 0;

/* XRC info CSS, not related to the exercise */
@import url('');

body {
  font-family: 'Titillium Web', sans-serif;

#xrc {
  position: fixed;
  top: 0;
  left: 0;
  background-color: #dddddd;
  padding: 1em;
  border-bottom-right-radius: 10px;


                import * as THREE from '[email protected]/build/three.module.js'

// Class for the experiment
class GettingStarted {
    // RENDERER //////////////////////////////////////////////////
    // Set up the renderer
    this.renderer = new THREE.WebGLRenderer({canvas: document.querySelector('#bg')});
    this.renderer.setSize(window.innerWidth, window.innerHeight);

    // SCENE /////////////////////////////////////////////////
    // Create an empty scene
    this.scene = new THREE.Scene();

    // CAMERA ////////////////////////////////////////////////
    // Create camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 1000);

    // Position camera 0, 0, 10 );

    // LIGHTS 
    // Set up ambient light 
    const ambientLight = new THREE.AmbientLightProbe(0xffffff, 0.5);
    // Set up directional light
    const directionalLight = new THREE.DirectionalLight(0xffffff, 1);
    // Initialize the time variable for animation purposes              
    this.time = 0;
  //Starting the composition ( only called once at the start ) ///////////////////////////////////////
    // BUILDING THE COMPOSITION //////////////////////////////////////////////
    // Create a cube geometry and a material
    const cubeGeometry = new THREE.BoxGeometry( 2, 2, 2 );
    const cubeMaterial = new THREE.MeshStandardMaterial( {
        color: 0xffffff
    } );
    // Create a cube object mesh
    this.cube = new THREE.Mesh( cubeGeometry, cubeMaterial );
    // Tilt the cube slightly for better viewing
    // Remember to add the cube object to the scene
    this.scene.add( this.cube );
  // Updating the composition ( called every frame, 60fps) put animation / interaction here 
  // dt - time elapsed since last call to update function, in seconds. Should be close to 0.016 if the rendering is at 60FPS
    // Increment cube rotation by dt for continuous rotation
    this.cube.rotation.y += dt;
    // Render the scene to the screen ( draw it to the screen )
} // End of the Class

// Creating the composition
let comp = new GettingStarted();

// Start the composition

// get time at start of animation 
// animation loop
function animate(){
  let oldtime=time;
  // get current time;
  // calculate time elapsed since this function was last called
  let dt = (time-oldtime)/1000;
  // update composition's current time
  // call composition update function
  // request an animation frame
  // the browser will call the animate function during its next animation frame, which will normally be 1/60 seconds later for 60FPS rendering speed
// starting animation loop

// update the renderer and camera so that the rendering canvas fills the screen
function windowResize()
	var width = window.innerWidth;
	var height = window.innerHeight;
	comp.renderer.setSize( width, height ); = width / height;;
// call the above function whenever the window is resized by the user
window.addEventListener('resize', windowResize );