title: unable to import THREE.js in es6
body: <p>I'm trying to show a three.js scene inside a div using create react app. However, it throws an undefined THREE. </p>
  
  <p>Tried</p>
  
  <ol>
  <li>npm install --save three</li>
  <li>import * as THREE from 'three'</li>
  </ol>
  
  <p>But doesn't seem to work, it always throws THREE is not defined no-undef. Kindly have a look at my repo as well. <a href="https://github.com/priyakrishnadev/webglapp" rel="nofollow noreferrer">https://github.com/priyakrishnadev/webglapp</a> </p>
  
  <p>Update: </p>
  
  <pre><code>{
    "name": "my-app",
    "version": "0.1.0",
    "private": true,
    "dependencies": {
      "autoprefixer": "7.1.6",
      "axios": "^0.16.2",
      "babel-core": "6.26.0",
      "babel-eslint": "7.2.3",
      "babel-jest": "20.0.3",
      "babel-loader": "7.1.2",
      "babel-polyfill": "^6.26.0",
      "babel-preset-react-app": "^3.1.0",
      "babel-runtime": "6.26.0",
      "case-sensitive-paths-webpack-plugin": "2.1.1",
      "chalk": "1.1.3",
      "classnames": "^2.2.5",
      "css-loader": "0.28.7",
      "dotenv": "4.0.0",
      "eslint": "4.10.0",
      "eslint-config-react-app": "^2.0.1",
      "eslint-loader": "1.9.0",
      "eslint-plugin-flowtype": "2.39.1",
      "eslint-plugin-import": "2.8.0",
      "eslint-plugin-jsx-a11y": "5.1.1",
      "eslint-plugin-react": "7.4.0",
      "extract-text-webpack-plugin": "3.0.2",
      "file-loader": "1.1.5",
      "fs-extra": "3.0.1",
      "html-webpack-plugin": "2.29.0",
      "jest": "20.0.4",
      "lodash": "^4.17.4",
      "object-assign": "4.1.1",
      "postcss-flexbugs-fixes": "3.2.0",
      "postcss-loader": "2.0.8",
      "promise": "8.0.1",
      "prop-types": "^15.6.0",
      "raf": "3.4.0",
      "react": "^16.1.0",
      "react-dev-utils": "^4.2.1",
      "react-dom": "^16.1.0",
      "react-redux": "^5.0.6",
      "react-router-dom": "^4.2.2",
      "react-timeago": "3.4.3",
      "redux": "^3.7.2",
      "redux-devtools-extension": "^2.13.2",
      "redux-form": "^7.0.4",
      "redux-logger": "^3.0.6",
      "redux-thunk": "^2.2.0",
      "style-loader": "0.19.0",
      "sw-precache-webpack-plugin": "0.11.4",
      "three": "^0.88.0",
      "timeago-react": "^2.0.0",
      "url-loader": "0.6.2",
      "uuid": "^3.1.0",
      "webpack": "3.8.1",
      "webpack-dev-server": "2.9.4",
      "webpack-manifest-plugin": "1.3.2",
      "whatwg-fetch": "2.0.3"
    },
    "scripts": {
      "start": "node scripts/start.js",
      "build": "node scripts/build.js",
      "test": "node scripts/test.js --env=jsdom"
    },
    "jest": {
      "collectCoverageFrom": [
        "src/**/*.{js,jsx,mjs}"
      ],
      "setupFiles": [
        "&lt;rootDir&gt;/config/polyfills.js"
      ],
      "testMatch": [
        "&lt;rootDir&gt;/src/**/__tests__/**/*.{js,jsx,mjs}",
        "&lt;rootDir&gt;/src/**/?(*.)(spec|test).{js,jsx,mjs}"
      ],
      "testEnvironment": "node",
      "testURL": "http://localhost",
      "transform": {
        "^.+\\.(js|jsx|mjs)$": "&lt;rootDir&gt;/node_modules/babel-jest",
        "^.+\\.css$": "&lt;rootDir&gt;/config/jest/cssTransform.js",
        "^(?!.*\\.(js|jsx|mjs|css|json)$)": "&lt;rootDir&gt;/config/jest/fileTransform.js"
      },
      "transformIgnorePatterns": [
        "[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs)$"
      ],
      "moduleNameMapper": {
        "^react-native$": "react-native-web"
      },
      "moduleFileExtensions": [
        "web.js",
        "mjs",
        "js",
        "json",
        "web.jsx",
        "jsx",
        "node"
      ]
    },
    "babel": {
      "presets": [
        "react-app"
      ]
    },
    "eslintConfig": {
      "extends": "react-app"
    }
  }
  </code></pre>