# Project - [How to create your first Scene in Playground](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/first-scene-in-playground.md) - [What is an Arc Camera?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/what-is-an-arc-camera.md) - [What is an Hemispheric Light?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/what-is-an-hemispheric-light.md) - [What is a Box Mesh?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/what-is-a-box-mesh.md) - [Basic Scene Exercises](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/basic-scene-exercises.md) - [How to load a 3D model on Playground?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/how-to-load-a-3d-model-on-playground.md) - [How to add user interactions?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/how-to-add-user-interactions.md) - [How to add WebXR support?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/how-to-add-webxr-support.md) - [How to add Virtual Reality capabilities to your app?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/how-to-add-webxr-support/how-to-add-virtual-reality-capabilities-to-your-app.md) - [How to test your WebXR app on an Android phone or Google Cardboard?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/how-to-add-webxr-support/how-to-test-your-webxr-app-on-an-android-phone-or-google-cardboard.md) - [How to add Augmented Reality capabilities to your app?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/how-to-add-webxr-support/how-to-add-augmented-reality-capabilities-to-your-app.md) - [How to setup a BabylonJS local development environment and project?](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/how-to-add-babylonjs-to-your-local-development-project.md) - [How to Create a WebXR Augmented Reality App on Your Local Device](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/how-to-create-a-webxr-augmented-reality-app.md) - [Babylon.js AR scene](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/babylon.js-ar-scene.md) - [Add Speech SDK](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/add-speech-sdk.md) - [Server](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/server.md) - [Token Util](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/token-util.md) - [Create Speech Resources](https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project/create-speech-resources.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://www.xrdev.app/mixed-reality-docs/webxr-lessons/babylon.js/project.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.