minimal three.js

with orbitControls, XZgrid, info

by jason870509

HTML

<div id="info">minimal three.js</div>
<script src="https://threejs.org/build/three.min.js"></script>
<script src="https://threejs.org/examples/js/controls/OrbitControls.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;

init();
animate();

function init() {

  scene = new THREE.Scene();

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

  camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
  camera.position.z = 500;
  let controls = new THREE.OrbitControls(camera, renderer.domElement);

  ////////////////////////////////////////////////////////////////
  var gridXZ = new THREE.GridHelper(200, 20, 'red', 'white');
  scene.add(gridXZ);

var light = new THREE.PointLight( 0xffffff, 1);
light.position.set( 50, 50, 50 );
scene.add( light );

	scene.add (buildModel());
}

function buildModel() {
	let geometry = new THREE.Geometry();
	let sq11 = Math.sqrt(11);
	geometry.vertices.push ( new THREE.Vector3(-5, 0, 5) );
  geometry.vertices.push ( new THREE.Vector3( 5, 0, 5) );
  geometry.vertices.push ( new THREE.Vector3( 5,12, 5) );
  geometry.vertices.push ( new THREE.Vector3( 5, 12+sq11, 0) );
  geometry.vertices.push ( new THREE.Vector3(-5, 12+sq11, 0) );
  geometry.vertices.push ( new THREE.Vector3(-5, 12, 5) );
 	
 	geometry.vertices.push ( new THREE.Vector3(-5, 0, -5) );
  geometry.vertices.push ( new THREE.Vector3( 5, 0, -5) );
  geometry.vertices.push ( new THREE.Vector3( 5,12, -5) );
  geometry.vertices.push ( new THREE.Vector3( 5, 12+sq11, 0) );
  geometry.vertices.push ( new THREE.Vector3(-5, 12+sq11, 0) );
  geometry.vertices.push ( new THREE.Vector3(-5, 12, -5) );
 
 	geometry.vertices.push ( new THREE.Vector3(-5, 0, 5) ); //12
  geometry.vertices.push ( new THREE.Vector3(-5, 0, -5) );//13
  geometry.vertices.push ( new THREE.Vector3(-5,12, -5) );//14
	geometry.vertices.push ( new THREE.Vector3(-5,12, 5) );//15
  
  geometry.vertices.push ( new THREE.Vector3(5, 0, 5) ); //16
  geometry.vertices.push ( new THREE.Vector3(5, 0, -5) );//17
  geometry.vertices.push ( new...