metaball

HTML

<div id="info">demo page</div>
<script src="http://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.min.js"></script>
<script src="https://dl.dropboxusercontent.com/u/3587259/Code/Threejs/OrbitControls.js">


</script>
<script src="https://jyunming-chen.github.io/marchingCube/js/MarchingCubes.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, light, controls;
var effect, numBlobs;
var clock = new THREE.Clock();
var time = 0;

init();
animate();

function init() {
  scene = new THREE.Scene();

  camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 10000);
  camera.position.set(-500, 500, 1500);
  scene.add(camera);

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

  var gridXZ = new THREE.GridHelper(100, 10);
  gridXZ.setColors(new THREE.Color(0xff0000), new THREE.Color(0xffffff));
  scene.add(gridXZ);

  // MARCHING CUBES

  var resolution = 28;
  numBlobs = 5;

  effect = new THREE.MarchingCubes(resolution, new THREE.MeshBasicMaterial(), true, true);
  effect.position.set(0, 0, 0);
  effect.scale.set(700, 700, 700);

  effect.enableUvs = false;
  effect.enableColors = false;

  //scene.add(effect);

  initmodel();

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

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

  document.body.appendChild(renderer.domElement);
  window.addEventListener('resize', onWindowResize, false);
}

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


function updateCubes(object, time, numblobs) {

  object.reset();

  // fill the field with some metaballs

  var i, ballx, bally, ballz, subtract, strength;

  subtract = 12;
  strength = 1.2 / ((Math.sqrt(numblobs) - 1) / 4 + 1);

  for (i = 0; i < numblobs; i++) {

    ballx = Math.sin(i + 1.26 * time * (1.03 + 0.5 * Math.cos(0.21 * i))) * 0.27 + 0.5;
    bally = Math.abs(Math.cos(i + 1.12 * time * Math.cos(1.22 + 0.1424 * i))) * 0.77; // dip into the floor
    ballz = Math.cos(i + 1.32 * time * 0.1 * Math.sin((0.92 + 0.53 * i))) * 0.27 + 0.5;

    object.addBall(ballx, bally, ballz,...