three.jsのサンプル(Copyright © 2010-2019 three.js authors) https://threejs.org/examples/#webgl_geometry_hierarchy を背景に、Webサイトを作るサンプル。
https://nimiri.github.io/background-three-example/examples/index.html
https://nimiri.github.io/background-three-example/examples/okane_kasegitai_hito_he.html