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HTML

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

<section id='xrc'>
  <p>Pen by <a href="https://xr.club/" target="_blank">XR Club</a></p>
  <a href="https://xr.club/exercise/getting-started/" target="_blank" >Exercise blog post</a>
</section><canvas id="bg"></canvas>

<section id='xrc'>
  <p>Pen by <a href="https://xr.club/" target="_blank">XR Club</a></p>
  <a href="https://xr.club/exercise/on-the-plane/" target="_blank" >Exercise blog post</a>
</section>
              
            
!

CSS

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

/* XRC info CSS, not related to the exercise */
@import url('https://fonts.googleapis.com/css2?family=Titillium+Web&display=swap');

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

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

JS

              
                import * as THREE from "https://cdn.jsdelivr.net/npm/three@0.127.0/build/three.module.js";

import { OrbitControls } from "https://cdn.jsdelivr.net/npm/three@0.127.0/examples/jsm/controls/OrbitControls.js";
class OnThePlane {
  constructor(){
     // RENDERER //////////////////////////////////////////////////
    // Set up the renderer
    this.renderer = new THREE.WebGLRenderer({canvas: document.querySelector('#bg')});
    this.renderer.setPixelRatio(window.devicePixelRatio);
    this.renderer.setSize(window.innerWidth, window.innerHeight);

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

    // CAMERA ////////////////////////////////////////////////
    // Create camera
    this.camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 1000);
    
    // CTRL /////////////////////////////////////////////////
    // Add orbit controls
    const controls = new OrbitControls(this.camera, this.renderer.domElement);

    // Position camera
    this.camera.position.set( 0, 20, 200 );
    this.scene.add(this.camera);

    // LIGHTS /////////////////////////////////////////////////
    // Set up ambient lighting
    const ambientLight = new THREE.AmbientLightProbe(0xffffff, 0.7);
    this.scene.add(ambientLight);

    // Set up directional light
    const directionalLight = new THREE.DirectionalLight( 0x00ffff, 2);
    directionalLight.position.set( 1, 0, 0 );
    this.scene.add(directionalLight);
    
  }
  start(){
    // BUILDING THE COMPOSITION //////////////////////////////////////////////
    // Load 2D texture image for the plane
    const gridtexture = new THREE.TextureLoader().load( "https://res.cloudinary.com/vjy/image/upload/c_fit,h_ih,w_ih/kdsaeye4m3eajlq5m0x4" );

    // Set texture properties
    gridtexture.wrapS = THREE.RepeatWrapping;
    gridtexture.wrapT = THREE.RepeatWrapping;
    gridtexture.repeat.set( 2, 2 );
    
    // Set up plane geometry and map the grid texture to the material
    const planeGeom = new THREE.PlaneGeometry( 100, 80);
    const planeMaterial = new THREE.MeshStandardMaterial( {
       map: gridtexture
    } );
    // Create a grid
    this.grid = new THREE.Mesh( planeGeom, planeMaterial );
    this.grid.material.side = THREE.DoubleSide;
    this.grid.rotation.x = -Math.PI / 2;
    this.scene.add(this.grid);
    
    // Set up sphere geometry and material 
    const sphereGeom = new THREE.SphereGeometry( 10, 20, 16);
    const sphereMaterial = new THREE.MeshStandardMaterial( {
       color: 0x0000ff
    } );
    // Create a sphere mesh
    this.sphereMesh = new THREE.Mesh( sphereGeom, sphereMaterial );
    this.sphereMesh.position.set(-12, -10, 10);

    // Set up cube geometry and material 
    const cubeGeom = new THREE.BoxGeometry( 15, 15, 15);
    const cubeMaterial = new THREE.MeshStandardMaterial( {
       color: 0x00ffff
    } );
    // Create a cube mesh
    this.cubeMesh = new THREE.Mesh( cubeGeom, cubeMaterial );
    this.cubeMesh.position.set(8, 10, 8);
    
    // Set up cone geometry and material 
    const coneGeom = new THREE.ConeGeometry( 15, 30, 15);
    const coneMaterial = new THREE.MeshStandardMaterial( {
       color: 0xffff00
    } );
    // Create a cone mesh
    this.coneMesh = new THREE.Mesh( coneGeom, coneMaterial );
    this.coneMesh.position.set(30, -20, 16);
    this.coneMesh.rotation.x = Math.PI/ 2;
    
    // Make grid the parent of all shape objects
    this.grid.add( this.sphereMesh, this.cubeMesh, this.coneMesh );
 
  }
  
   // 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
  //////////////////////////////////////////
  update(dt){
    // Update grid rotation every frame, rotate on its z axis
    this.grid.rotation.z += dt ;
    // Render the scene to the screen ( draw it to the screen )
    this.renderer.render(this.scene, this.camera);
  }
  
} // End of Class


let comp = new OnThePlane(); 

comp.start();

// Requesting animation frame and calculating time
let time=Date.now();
function animate(){
  let oldtime=time;
  time=Date.now();
  comp.update((oldtime-time)/1000);
  requestAnimationFrame(animate);
}
animate();

// Listening to window resize, and updating camera & rendere dimensions
function windowResize(ev)
{
  console.log("resize",ev);
	var width = window.innerWidth;
	var height = window.innerHeight;
	comp.renderer.setSize( width, height );
	comp.camera.aspect = width / height;
	comp.camera.updateProjectionMatrix();
}
window.addEventListener('resize', windowResize ); 

              
            
!
999px

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