You can install three.js via npm:
npm install three
You can add it from a CDN to your HTML:
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r83/three.js"></script>
You can use the three.js editor to give it a try and download the project as an ex...
This is the basic HTML file that can be used as a boilerplate when starting a project. This boilerplate uses orbit controls with damping (camera that can move around an object with deceleration effect) and creates a spinning cube.
<!DOCTYPE html>
<html>
<head>
<t...
The example is taken from threejs website.
You may want to download three.js and change the script source below.
There are many more advanced examples under this link.
HTML:
<html>
<head>
<meta charset=utf-8>
<title>My first Three.js app</title>
<...