JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://threejs.org/build/three.min.js"></script>
<script src="http://threejs.org/examples/js/controls/OrbitControls.js"></script>

CSS

body {
	background-color: #000;
	margin: 0px;
	overflow: hidden;
}

JavaScript

// three.js: multiple materials on a single mesh

var renderer, scene, camera;

init();
render();

function init() {

	// renderer
	renderer = new THREE.WebGLRenderer( { antialias: true } );
	renderer.setPixelRatio( window.devicePixelRatio );
	renderer.setClearColor( 0x000000, 0.0 );
	renderer.setSize( window.innerWidth, window.innerHeight );
	document.body.appendChild( renderer.domElement );

	// scene
	scene = new THREE.Scene();
	
	// camera
	camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 1000 );
	camera.position.set( 15, 20, 30 );
	scene.add( camera );

	// controls
	var controls = new THREE.OrbitControls( camera, renderer.domElement );
	controls.addEventListener( 'change', render );
	controls.minDistance = 10;
	controls.maxDistance = 50;

/* // ambient
  scene.add( new THREE.AmbientLight( 0xffffff, 0.1 ) ); */
  
  // light
  var light = new THREE.PointLight( 0xffffff, 1 );
  camera.add( light );

	// geometry
  var geometry = new THREE.BoxBufferGeometry( 10, 10, 10 );
	geometry.clearGroups();
	geometry.addGroup( 0, Infinity, 0 );
	geometry.addGroup( 0, Infinity, 1 );
	geometry.addGroup( 0, Infinity, 2 );
	geometry.addGroup( 0, Infinity, 3 ); 

	// textures
	var loader = new THREE.TextureLoader();
	var splodge = loader.load( 'https://threejs.org/examples/textures/decal/decal-diffuse.png', render );
  var cat = loader.load('https://images.unsplash.com/photo-1518791841217-8f162f1e1131?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=1950&q=80.jpeg', render)

	// materials
	var catMat = new THREE.MeshPhongMaterial( {
		map: cat,
	} );

	var splodgeMat = new THREE.MeshPhongMaterial( {
		map: splodge,
		alphaTest: 0.5,

	} );
  
	var materials = [ catMat,splodgeMat ];

	// mesh
	mesh = new THREE.Mesh( geometry, materials );
	scene.add( mesh );

}

function render() {

	renderer.render( scene, camera );

}