{
  "typeAcquisition": {
    "include": [
      "three"
    ]
  },
  "compilerOptions": {
    "target": "ES6",
    "module": "es6"
  },
  "exclude": [
    "assets/js/build",
    "assets/js/build-min",
    "assets/js/vendor",
    "node_modules"
  ]
}

npm install -g browser-sync
browser-sync start --server --files *

function f(x) {
  return Math.max(0, Math.min(1, Math.exp(x * 2) / 2.2 - 1));
}