JSFiddle - React, Tailwind, and code Playground

by Paul West

CSS

body{
  overflow: hidden;
  margin: 0;
}

JavaScript

import * as THREE from 'https://threejs.org/build/three.module.js';
import {OrbitControls} from 'https://threejs.org/examples/jsm/controls/OrbitControls.js';
import {GUI} from "https://threejs.org/examples/jsm/libs/dat.gui.module.js";


let scene = new THREE.Scene();
let camera = new THREE.PerspectiveCamera(60, innerWidth / innerHeight, 1, 100);
camera.position.set(0, 5, 10);
let renderer = new THREE.WebGLRenderer({antialias: true});
renderer.setSize(innerWidth, innerHeight);
document.body.appendChild(renderer.domElement);

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

let light = new THREE.DirectionalLight(0xffffff, 1);
light.position.setScalar(10);
scene.add(light, new THREE.AmbientLight(0xffffff, 0.5));

let g = new THREE.BoxGeometry(1, 1, 1, 360, 1, 1);
g.translate(0.5, 0.5, 0);
let pos = g.attributes.position;

let v = new THREE.Vector3();
let r = 2;
let R = 3;
let waves = 5;
for(let i = 0; i < pos.count; i++){
	v.fromBufferAttribute(pos, i);
	
  let angle = v.x * Math.PI * 2;
  
  let radius = v.z > 0 ? R : r;
  let y = v.y < 0.5 ? v.y : v.y + Math.sin(v.x * Math.PI * 2 * waves) * 0.25;
  
  pos.setXYZ(i, Math.cos(angle) * radius, y, -Math.sin(angle) * radius);
}
g.computeVertexNormals();

let m = new THREE.MeshLambertMaterial({color: "aqua", wireframe: true});
let o = new THREE.Mesh(g, m);
scene.add(o);

let gui = new GUI();
gui.add(m, "wireframe");

renderer.setAnimationLoop(() => {
  renderer.render(scene, camera);
})