text: // Enabling camera zoom functionality
  window.addEventListener('wheel', event => {
      // Getting the mouse wheel change  and normalizing it 
      const rotation = Math.sign(event.wheelDelta);
  
      var vrCamera = document.getElementById('cam').getAttribute('camera');
      var finalZoom = document.getElementById('cam').getAttribute('camera').zoom + rotation * 0.07;
  
      // Limiting the zoom o 5
      if (finalZoom < 1) finalZoom = 1;
      if (finalZoom > 5) finalZoom = 5;
  
      vrCamera.zoom = finalZoom;
  
      // Setting the vrCamera property into HTML camera element
      document.getElementById('cam').setAttribute('camera', vrCamera);
  });