To set up a VR/AR experience in Babylon.js, follow these steps :
1. Import necessary libraries : Include Babylon.js and WebXR packages to access required features.
2. Create a scene : Initialize the engine, create a canvas, and instantiate a new scene with camera and lights.
3. Load assets : Use asset manager or import meshes for your 3D models.
4. Enable XR support : Call scene.createDefaultXRExperienceAsync() to enable WebXR and configure controllers.
5. Customize interactions : Add event listeners for input actions (e.g., trigger press) and define corresponding functions.
6. Optimize performance : Utilize techniques like LOD, culling, and asset compression to ensure smooth rendering.
7. Start render loop : Attach the engine’s runRenderLoop function to continuously update the scene.
Example code :
import * as BABYLON from 'babylonjs';
import 'babylonjs-loaders';
import '@babylonjs/core/XR';
const canvas = document.getElementById('renderCanvas');
const engine = new BABYLON.Engine(canvas, true);
const createScene = async () => {
const scene = new BABYLON.Scene(engine);
const camera = new BABYLON.ArcRotateCamera("camera", -Math.PI / 2, Math.PI / 2.5, 10, new BABYLON.Vector3(0, 0, 0), scene);
camera.attachControl(canvas, true);
new BABYLON.HemisphericLight("light", new BABYLON.Vector3(0, 1, 0), scene);
// Load assets...
const xrHelper = await scene.createDefaultXRExperienceAsync({});
// Customize interactions...
return scene;
};
createScene().then((scene) => {
engine.runRenderLoop(() => {
scene.render();
});
});?
