hw7 helper

blocker

by chaiche

HTML

<div id="info">hw7 helper
  <br> blocker (for colored focus)
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r76/three.min.js"></script>
<script src="https://dl.dropboxusercontent.com/u/3587259/Code/Threejs/OrbitControls.js">


</script>

CSS

body {
  background-color: #fff;
  color: #111;
  margin: 0px;
  overflow: hidden;
  font-family: Monospace;
  font-size: 10px;
  position: absolute;
}

#info {
  position: absolute;
  top: 3%;
  width: 100%;
  padding: 5px;
  text-align: center;
  color: #ffff00
}

JavaScript

var renderer, camera, controls;
var pointLight;

// blocker pass
// 1st pass: torus (colorWrite off)
// 2nd pass: column

init();
animate();

function init() {
  renderer = new THREE.WebGLRenderer({
    antialias: true
  });
  renderer.setSize(window.innerWidth, window.innerHeight);
  document.body.appendChild(renderer.domElement);
  renderer.setClearColor(0x888888);
  renderer.autoClear = false;

  camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 10000);
  camera.position.y = 0;
  camera.position.z = 200;
  camera.lookAt(new THREE.Vector3(0, 0, 0));

  controls = new THREE.OrbitControls(camera, renderer.domElement);
  ///////////////////////////////////////////////////////////////////////		
  sceneMono = new THREE.Scene();
  pointLight = new THREE.PointLight(0xffffff);
  pointLight.position.set(0, 300, 200);
  sceneMono.add(pointLight);

  torus = new THREE.Mesh(new THREE.TorusGeometry(10, 3, 16, 100),
    new THREE.MeshLambertMaterial({
      color: 0x12ffee,
      colorWrite: false
    }));
  torus.scale.set(3, 3, 3);
  torus.rotation.x = Math.PI / 2;
  sceneMono.add(torus);

  sceneColor = new THREE.Scene();
  column = new THREE.Mesh(new THREE.BoxGeometry(20, 50, 20),
    new THREE.MeshLambertMaterial({
      color: 0xff1234
    }));
  sceneColor.add(pointLight);
  sceneColor.add(column);
}

window.onresize = function() {
  camera.aspect = window.innerWidth / window.innerHeight;
  camera.updateProjectionMatrix();
  renderer.setSize(window.innerWidth, window.innerHeight);
}

function animate() {
  controls.update();

  requestAnimationFrame(animate);
  renderer.clear();

  renderer.setClearColor(0x888888);
  renderer.render(sceneMono, camera);
  renderer.render(sceneColor, camera);
  // block does not work for r70 (r73 & r76 ok)
  // problem seems to be setting colorWrite

}