GL Transmission Format (glTF) is a file format for 3D models used by the WebGL API, which is widely supported across different platforms and devices. In this article, we will discuss how to use GLTF loader in Three.js to load 3D models into your web application.

First, you'll need to have Three.js set up in your web project. Once you have Three.js installed, you can start using GLTF loader to import 3D models. You can download the GLTF loader from the official Three.js repository or include it via a package manager like npm.

Once you have the GLTF loader included in your project, you can use it to load 3D models by providing the file path to the GLTF file. Here's an example of how to use GLTF loader in your Three.js project:

```javascript

// Create a scene

const scene = new THREE.Scene();

// Create a camera

const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);

camera.position.z = 5;

// Create a renderer

const renderer = new THREE.WebGLRenderer();

renderer.setSize(window.innerWidth, window.innerHeight);

document.body.appendChild(renderer.domElement);

// Load a 3D model using GLTF loader

const loader = new THREE.GLTFLoader();

loader.load('path_to_your_gltf_file.gltf', (gltf) => {

scene.add(gltf.scene);

});

// Animate the scene

const animate = () => {

requestAnimationFrame(animate);

renderer.render(scene, camera);

};

animate();

```

In this example, we create a basic Three.js scene with a camera and a renderer. We then use the GLTF loader to load a 3D model and add it to the scene. Finally, we start the animation loop to render the scene.

Using GLTF loader in Three.js allows you to easily import 3D models into your web application and manipulate them with the powerful features of the Three.js library. Whether you're building a game, an interactive visualization, or any other type of 3D web application, GLTF loader makes it easy to integrate 3D models into your project.

In conclusion, GLTF loader is a powerful tool for loading 3D models in Three.js. By following the steps outlined in this article, you can quickly start incorporating 3D models into your web projects and create engaging and immersive experiences for your users.