SCENE

with orbitControls, XZgrid, info

by Bai Shiuan Huang

HTML

<div id="info">demo page
  <br/>Press Z to toggle</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/94/three.min.js"></script>
<script src="https://threejs.org/examples/js/controls/OrbitControls.js">


</script>
<script src="https://jyunming-chen.github.io/tutsplus/js/KeyboardState.js"></script>

CSS

#info {
  position: absolute;
  top: 0px;
  width: 100%;
  padding: 10px;
  text-align: center;
  color: #ffff00
}

body {
  overflow: hidden;
}

JavaScript

var camera, scene, renderer;
var keyboard = new KeyboardState();
var angle = 0, ring, arrow;

init();
animate();

function init() {

  scene = new THREE.Scene();

  camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
  //camera.position.z = 50;
  camera.position.y = 50;
  camera.position.z = 50;
  scene.add(camera);
  let light1 = new THREE.AmbientLight(0x888888);
  let light = new THREE.PointLight(0xffffff);
  light.position.set( 0, 300, 0);
  light.castShadow = true; 
  light.shadow.mapSize.width = 512;  // default
  light.shadow.mapSize.height = 512; // default
  light.shadow.camera.near = 0.5;       // default
  light.shadow.camera.far = 500 
  
  scene.add(light, light1);
  //scene.add(new THREE.PointLightHelper(light, 5));
  
  let gridXZ = new THREE.GridHelper(300, 30, 'red', 'white');
  scene.add(gridXZ);

  renderer = new THREE.WebGLRenderer();
  renderer.shadowMap.enabled = true;
  renderer.shadowMap.type = THREE.PCFShadowMap;
  renderer.setSize(window.innerWidth, window.innerHeight);
  renderer.setClearColor(0x888888);

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

  document.body.appendChild(renderer.domElement);
  ////////////////////////////////////////////////////////////////////////
  var seat1 = makeLotsOfSeat();
  seat1.position.x = 150;
  seat1.rotation.y = -Math.PI/2;
  var seat2 = makeLotsOfSeat();
  seat2.position.x = -150;
  seat2.rotation.y = Math.PI/2;
  scene.add(seat1, seat2);
  /////////////////////////////////////////////////////////////////////////
  arrow = new THREE.Object3D();
  let box = new THREE.Mesh( new THREE.BoxGeometry( 3, 5, 2),new THREE.MeshPhongMaterial( {color: 0xffff00} ) );
  box.position.y = 10;
  let tri = new THREE.Mesh( new THREE.CylinderGeometry( 5, 5, 2, 3 ),new THREE.MeshPhongMaterial( {color: 0xffff00} ) );
  tri.rotation.x = Math.PI/2;
  tri.position.y = 5;
  arrow.add( tri, box );
  scene.add(arrow);
  ring = new THREE.Object3D();
  let ring0 =...