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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - materials - normal map [object space]</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="main.css">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl object-space normalmap demo<br />
Nefertiti Bust by
<a href="http://www.cultlab3d.de/" target="_blank" rel="noopener">CultLab3D</a><br />
</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
let renderer, scene, camera;
init();
function init() {
// renderer
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
renderer.outputEncoding = THREE.sRGBEncoding;
// scene
scene = new THREE.Scene();
// camera
camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.set( - 10, 0, 23 );
scene.add( camera );
// controls
const controls = new OrbitControls( camera, renderer.domElement );
controls.addEventListener( 'change', render );
controls.minDistance = 10;
controls.maxDistance = 50;
controls.enablePan = false;
// ambient
scene.add( new THREE.AmbientLight( 0xffffff, .2 ) );
// light
const light = new THREE.PointLight( 0xffffff, 1.5 );
camera.add( light );
// model
new GLTFLoader().load( 'models/gltf/Nefertiti/Nefertiti.glb', function ( gltf ) {
gltf.scene.traverse( function ( child ) {
if ( child.isMesh ) {
// glTF currently supports only tangent-space normal maps.
// this model has been modified to demonstrate the use of an object-space normal map.
child.material.normalMapType = THREE.ObjectSpaceNormalMap;
// attribute normals are not required with an object-space normal map. remove them.
child.geometry.deleteAttribute( 'normal' );
//
child.material.side = THREE.DoubleSide;
child.scale.multiplyScalar( 0.5 );
// recenter
new THREE.Box3().setFromObject( child ).getCenter( child.position ).multiplyScalar( - 1 );
scene.add( child );
}
} );
render();
} );
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
renderer.setSize( window.innerWidth, window.innerHeight );
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
render();
}
function render() {
renderer.render( scene, camera );
}
</script>
</body>
</html>