HUD

with RingGeometry

by jmcjc5u

HTML

<div id="info">HUD Button
</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 scene, camera, renderer;
var sceneHUD, cameraHUD;
var aframe;

init();
animate();

function init() {

  scene = new THREE.Scene();

  camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
  camera.position.z = 200;
  cameraHUD = new THREE.OrthographicCamera(-10, 10, 10, -10, -10, 1000);
  cameraHUD.position.z = 200;

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

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

  var light = new THREE.PointLight(0xffffff);
  light.position.set(100, 300, 200);
  scene.add(light);

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

  window.addEventListener('resize', onWindowResize, false);

  //////////////////////////////////////////////////////////
  var cube1 = new THREE.Mesh(new THREE.BoxGeometry(20, 20, 20),
    new THREE.MeshLambertMaterial({
      color: 0xff1234
    }));
  cube1.position.x = -60;
  scene.add(cube1);

  var cube2 = cube1.clone();
  cube2.material = new THREE.MeshLambertMaterial({
    color: 0x2134ff
  });
  cube2.position.x = 60;
  scene.add(cube2);

  //////////////////////////////////////////////////////////
  renderer.autoClear = false;
  sceneHUD = new THREE.Scene();

  whRatio = window.innerWidth / window.innerHeight;
  halfH = 10;
  halfW = whRatio * halfH;

  aframe = new THREE.Group();

  let fframe = new THREE.Mesh(new THREE.PlaneGeometry(2 * halfW, 2 * halfW / 10), new THREE.MeshBasicMaterial({
    color: 0xffff34,
    //depthTest: false,  // always drawn
    depthWrite: true
  }));

  let button = new THREE.Mesh(new THREE.CircleGeometry(halfW / 15, 30), new THREE.MeshBasicMaterial({
    color: 0xff0000,
    depthTest: false  // always drawn
  }));

  sceneHUD.add(aframe)
  aframe.add(fframe);
  aframe.add(button)
  aframe.position.set(0, -(halfH - halfW / 10), 0)
 ...