JSFiddle - React, Tailwind, and code Playground

by Matt

HTML

<base href="https://rawcdn.githack.com/mrdoob/three.js/r169/examples/" />
<script async src="https://cdn.jsdelivr.net/npm/[email protected]/dist/es-module-shims.js"></script>
<script type="importmap">
	{
		"imports": {
			"three": "https://cdn.jsdelivr.net/npm/[email protected]/build/three.module.js",
			"three/addons/": "https://cdn.jsdelivr.net/npm/[email protected]/examples/jsm/",
			"@pixiv/three-vrm": "https://cdn.jsdelivr.net/npm/@pixiv/[email protected]/lib/three-vrm.module.min.js",
			"lil-gui": "https://cdn.jsdelivr.net/npm/[email protected]/dist/lil-gui.esm.min.js"
		}
	}
</script>

CSS

body {
	background-color: lightblue;
}

canvas {
	position: fixed;
	inset: 0;
}

JavaScript

import * as THREE from 'three'
import { OrbitControls } from 'three/addons/controls/OrbitControls.js'
import { RGBELoader } from 'three/addons/loaders/RGBELoader.js'
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'
import { VRMLoaderPlugin, VRMUtils } from '@pixiv/three-vrm';
import { GUI } from 'lil-gui'

const VRM_URL = "https://rawcdn.githack.com/pixiv/three-vrm/0f9fd31a0baeb16587365eb5597ebb4012f42e46/packages/three-vrm/examples/models/VRM1_Constraint_Twist_Sample.vrm"

let scene, camera, renderer
let orbitControls, clock, mixer
let currentVrm, vrmPose, pureMixer
let params

init().then(animate)

async function init() {

	params = {
    mixer: {
      	autoUpdate: false,
        delta: 0.1,
        update: () => updateMixerShared(params.mixer.delta),
    		pure: true,
        resetPureState: () => pureMixer.reset()
    }
	}

	scene = new THREE.Scene()

	camera = new THREE.PerspectiveCamera(75, undefined, 0.1, 1000)
	camera.position.set(-0.2, 1.5, 1)
	
	clock = new THREE.Clock()

	renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true })
	renderer.toneMapping = THREE.ACESFilmicToneMapping
	renderer.outputEncoding = THREE.sRGBEncoding
	document.body.appendChild(renderer.domElement)

	orbitControls = new OrbitControls(camera, renderer.domElement)
	orbitControls.target.set(0, 1, 0)
	
	const directionalLight = new THREE.DirectionalLight("white", Math.PI)
	scene.add(directionalLight)
	
	const gltfLoader = new GLTFLoader()
	gltfLoader.register( ( parser ) => {
		return new VRMLoaderPlugin( parser );
	} );
	
	const gltf = await gltfLoader.loadAsync(VRM_URL)
	currentVrm = gltf.userData.vrm
	
	VRMUtils.removeUnnecessaryVertices( gltf.scene );
	VRMUtils.combineSkeletons( gltf.scene );
	VRMUtils.rotateVRM0( gltf.scene )
	
	scene.add(gltf.scene)
	
	// Animation
	
	mixer = new THREE.AnimationMixer(currentVrm.scene)
  pureMixer = createPureMixer({
  	mixer,
    saveState: () => currentVrm.humanoid.getNormalizedPose(),
    loadState: (vrmPose) => {
...