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Merged
Mugen87 merged 1 commit into from
Jun 3, 2025
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Examples: Merge OBJ demos. #31216

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1 change: 0 additions & 1 deletion examples/files.json
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Original file line number Diff line number Diff line change
Expand Up @@ -101,7 +101,6 @@
"webgl_loader_mdd",
"webgl_loader_nrrd",
"webgl_loader_obj",
"webgl_loader_obj_mtl",
"webgl_loader_pcd",
"webgl_loader_pdb",
"webgl_loader_ply",
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71 changes: 20 additions & 51 deletions examples/webgl_loader_obj.html
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@@ -1,15 +1,15 @@
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - loaders - OBJ loader</title>
<title>three.js webgl - loaders - OBJ/MTL 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="main.css">
</head>

<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - OBJLoader test
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - OBJ/MTL loader
</div>

<script type="importmap">
Expand All @@ -25,16 +25,15 @@

import * as THREE from 'three';

import { MTLLoader } from 'three/addons/loaders/MTLLoader.js';
import { OBJLoader } from 'three/addons/loaders/OBJLoader.js';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

let camera, scene, renderer;

let object;
let camera, scene, renderer, controls;

init();

function init() {
async function init() {

camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.1, 20 );
camera.position.z = 2.5;
Expand All @@ -50,67 +49,35 @@
camera.add( pointLight );
scene.add( camera );

// manager

function loadModel() {

object.traverse( function ( child ) {

if ( child.isMesh ) child.material.map = texture;

} );

object.position.y = - 0.95;
object.scale.setScalar( 0.01 );
scene.add( object );

render();

}

const manager = new THREE.LoadingManager( loadModel );

// texture

const textureLoader = new THREE.TextureLoader( manager );
const texture = textureLoader.load( 'textures/uv_grid_opengl.jpg', render );
texture.colorSpace = THREE.SRGBColorSpace;

// model

function onProgress( xhr ) {

if ( xhr.lengthComputable ) {

const percentComplete = xhr.loaded / xhr.total * 100;
console.log( 'model ' + percentComplete.toFixed( 2 ) + '% downloaded' );
const mtlLoader = new MTLLoader().setPath( 'models/obj/male02/' );
const materials = await mtlLoader.loadAsync( 'male02.mtl' );
materials.preload();

}
const objLoader = new OBJLoader().setPath( 'models/obj/male02/' );
objLoader.setMaterials( materials ); // optional since OBJ asstes can be loaded without an accompanying MTL file

}

function onError() {}

const loader = new OBJLoader( manager );
loader.load( 'models/obj/male02/male02.obj', function ( obj ) {
const object = await objLoader.loadAsync( 'male02.obj' );

object = obj;

}, onProgress, onError );
object.position.y = - 0.95;
object.scale.setScalar( 0.01 );
scene.add( object );

//

renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setAnimationLoop( animate );
document.body.appendChild( renderer.domElement );

//

const controls = new OrbitControls( camera, renderer.domElement );
controls = new OrbitControls( camera, renderer.domElement );
controls.enableDamping = true;
controls.minDistance = 2;
controls.maxDistance = 5;
controls.addEventListener( 'change', render );

//

Expand All @@ -127,7 +94,9 @@

}

function render() {
function animate() {

controls.update();

renderer.render( scene, camera );

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125 changes: 0 additions & 125 deletions examples/webgl_loader_obj_mtl.html
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