Created
March 28, 2024 02:24
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Three JS Model Demo
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| import * as THREE from 'three'; | |
| import { | |
| OrbitControls | |
| } from 'https://unpkg.com/three/examples/jsm/controls/OrbitControls.js'; | |
| import { | |
| GLTFLoader | |
| } from 'https://unpkg.com/three/examples/jsm/loaders/GLTFLoader.js'; | |
| let camera, scene, renderer, model, controls; | |
| init(); | |
| animate(); | |
| function init() { | |
| scene = new THREE.Scene(); | |
| camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 10000); | |
| camera.position.set(0, 150, 50); // Adjust camera position to better view the model | |
| renderer = new THREE.WebGLRenderer({ | |
| antialias: true, | |
| alpha: true | |
| }); | |
| renderer.setSize(window.innerWidth, window.innerHeight); | |
| renderer.setClearColor(0x000000, 0); // the default | |
| // create a div element | |
| const div = document.createElement('div'); | |
| // set id to the 3d-model | |
| div.id = 'vr-model'; | |
| // append the renderer to the div | |
| div.appendChild(renderer.domElement); | |
| // append the div to the top of the body | |
| document.body.insertBefore(div, document.body.firstChild); | |
| controls = new OrbitControls(camera, renderer.domElement); | |
| controls.target.set(0, -20, -150); | |
| controls.enableDamping = true; | |
| controls.dampingFactor = 0.05; | |
| controls.maxPolarAngle = Math.PI / 2; // Prevent the camera from going below the ground | |
| controls.minPolarAngle = Math.PI / 3; // Prevent the camera from going too high | |
| const ambientLight = new THREE.AmbientLight(0xcccccc, 0.4); | |
| scene.add(ambientLight); | |
| const directionalLight = new THREE.DirectionalLight(0xffffff, 0.8); | |
| directionalLight.position.set(1, 1, 0).normalize(); | |
| scene.add(directionalLight); | |
| // GLTFLoader to load a 3D model | |
| const loader = new GLTFLoader(); | |
| loader.load('/static/js/untitled.glb', function (gltf) { | |
| model = gltf.scene; | |
| scene.add(model); | |
| }, undefined, function (error) { | |
| console.error(error); | |
| }); | |
| window.addEventListener('resize', onWindowResize, false); | |
| } | |
| function onWindowResize() { | |
| camera.aspect = window.innerWidth / window.innerHeight; | |
| camera.updateProjectionMatrix(); | |
| renderer.setSize(window.innerWidth, window.innerHeight); | |
| } | |
| function animate() { | |
| requestAnimationFrame(animate); | |
| // Required if controls.enableDamping or controls.autoRotate are set to true | |
| controls.update(); | |
| render(); | |
| } | |
| function render() { | |
| renderer.render(scene, camera); | |
| } |
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