I don't know how your project is organized so you will have to replace {path} or even the file name with the actual static path of the file.
<script type="module">
import * as THREE from '{path}/three.module.js'
import { GLTFLoader } from '{path}/GLTFLoader.js'
</script>
If you don't host threejs file just use a CDN
import { GLTFLoader } from 'https://cdn.jsdelivr.net/npm/three/examples/jsm/loaders/GLTFLoader.js'
EDIT
NPM and serving files with any kind of server extension is something you need to understand clearly and is not something that works out of the box. I suggest that you create a single index.html file and run it directly on the browser.
As an example I've replaced every file access with a CDN link.
First run is slow after that the model is in cache.
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - glTF loader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="https://ghcdn.rawgit.org/mrdoob/three.js/dev/examples/main.css">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - GLTFLoader<br />
Battle Damaged Sci-fi Helmet by
<a href="https://sketchfab.com/theblueturtle_" target="_blank" rel="noopener">theblueturtle_</a><br />
<a href="https://hdrihaven.com/hdri/?h=royal_esplanade" target="_blank" rel="noopener">Royal Esplanade</a> by <a href="https://hdrihaven.com/" target="_blank" rel="noopener">HDRI Haven</a>
</div>
<script type="module">
import * as THREE from 'https://cdn.jsdelivr.net/npm/[email protected]/build/three.module.js';
import { OrbitControls } from 'https://cdn.jsdelivr.net/npm/three/examples/jsm/controls/OrbitControls.js';
import { GLTFLoader } from 'https://cdn.jsdelivr.net/npm/three/examples/jsm/loaders/GLTFLoader.js';
import { RGBELoader } from 'https://cdn.jsdelivr.net/npm/three/examples/jsm/loaders/RGBELoader.js';
import { RoughnessMipmapper } from 'https://cdn.jsdelivr.net/npm/three/examples/jsm/utils/RoughnessMipmapper.js';
let camera, scene, renderer;
init();
render();
function init() {
const container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.25, 20 );
camera.position.set( - 1.8, 0.6, 2.7 );
scene = new THREE.Scene();
new RGBELoader()
.setDataType( THREE.UnsignedByteType )
.setPath( 'https://ghcdn.rawgit.org/mrdoob/three.js/dev/examples/textures/equirectangular/' )
.load( 'royal_esplanade_1k.hdr', function ( texture ) {
const envMap = pmremGenerator.fromEquirectangular( texture ).texture;
scene.background = envMap;
scene.environment = envMap;
texture.dispose();
pmremGenerator.dispose();
render();
// model
// use of RoughnessMipmapper is optional
const roughnessMipmapper = new RoughnessMipmapper( renderer );
const loader = new GLTFLoader().setPath( 'https://ghcdn.rawgit.org/mrdoob/three.js/dev/examples/models/gltf/DamagedHelmet/glTF/' );
loader.load( 'DamagedHelmet.gltf', function ( gltf ) {
gltf.scene.traverse( function ( child ) {
if ( child.isMesh ) {
// TOFIX RoughnessMipmapper seems to be broken with WebGL 2.0
// roughnessMipmapper.generateMipmaps( child.material );
}
} );
scene.add( gltf.scene );
roughnessMipmapper.dispose();
render();
} );
} );
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.toneMappingExposure = 1;
renderer.outputEncoding = THREE.sRGBEncoding;
container.appendChild( renderer.domElement );
const pmremGenerator = new THREE.PMREMGenerator( renderer );
pmremGenerator.compileEquirectangularShader();
const controls = new OrbitControls( camera, renderer.domElement );
controls.addEventListener( 'change', render ); // use if there is no animation loop
controls.minDistance = 2;
controls.maxDistance = 10;
controls.target.set( 0, 0, - 0.2 );
controls.update();
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
render();
}
//
function render() {
renderer.render( scene, camera );
}
</script>
</body>
</html>
