In Babylon.js, you can load external 3D models using the BABYLON.SceneLoader class, which provides methods for loading models from various file formats. Babylon.js supports a variety of file formats for importing 3D models. Here's a step-by-step guide on how to load external 3D models:
1. Import Babylon.js and SceneLoader : Make sure to include the Babylon.js library in your HTML file. You can download it or use a CDN. Additionally, include the
babylonjs-loaders library, which contains loaders for various 3D model formats.
<script src="https://cdn.babylonjs.com/babylon.js"></script>
<script src="https://cdn.babylonjs.com/loaders/babylonjs.loaders.min.js"></script>?
2. Create a Scene : Set up the Babylon.js engine and create a scene.
var canvas = document.getElementById("renderCanvas");
var engine = new BABYLON.Engine(canvas, true);
var scene = new BABYLON.Scene(engine);?
3. Load External 3D Model : Use the
BABYLON.SceneLoader.ImportMesh method to load an external 3D model. Provide the path to the model file and specify the desired scene and callback function.
// Example: Loading a model in the GLTF format
BABYLON.SceneLoader.ImportMesh("", "path/to/models/", "model.gltf", scene, function (meshes) {
// Callback function called when the model is loaded
// 'meshes' is an array containing the loaded meshes
});?
Supported File Formats : Babylon.js supports several 3D model file formats. Some of the commonly used formats include:
* GLTF (GL Transmission Format) : GLTF is a popular, efficient, and versatile format for 3D models. It is designed to be a compact and efficient transmission format, making it suitable for web applications.
* BABYLON (Babylon.js Binary Format) : The native Babylon.js binary format is optimized for Babylon.js and can be used for efficient loading of scenes.
* OBJ (Wavefront Object) : OBJ is a widely used format for representing 3D geometry. Babylon.js provides a loader for OBJ files.
* FBX (Filmbox) : FBX is a proprietary file format developed by Autodesk. Babylon.js has support for loading FBX files.
* STL (Stereolithography) : STL is a file format commonly used for 3D printing. Babylon.js supports STL files.
Example : Here's an example of loading a GLTF model:
BABYLON.SceneLoader.ImportMesh("", "path/to/models/", "model.gltf", scene, function (meshes) {
// Callback function called when the model is loaded
// 'meshes' is an array containing the loaded meshes
// You can manipulate the loaded meshes here or perform additional actions
});?
Make sure to replace
"path/to/models/" and "
model.gltf" with the actual path and filename of your 3D model. The callback function is executed once the model is successfully loaded, providing access to the loaded meshes for further manipulation or interaction within your Babylon.js scene.
