Get access to scene from outside of onSceneMount callback

[obolland]

I would like to get access to the scene from outside of the onSceneMount callback on the Scene component.
For example, I have child models with their respective onModelLoaded callbacks, I would like ideally like direct access to the scene from within these callbacks. Is this possible?

[brianzinn]

hi @obolland

what about the useScene hook?

import { useScene } from 'react-babylonjs';

const YourComponent = () => {
   // this component needs to be inside <Scene>...</Scene> otherwise will be null
   const scene = useScene();
   console.log('scene', scene);
   
   // likely you use `useCallback` with scene dependency for your onModelLoaded callback?
   
   return <Model .../>
}

Otherwise in your callback your mesh has a scene property - it's not public, but I don't suspect that would change anytime soon. Otherwise maybe you can share further your scenario and there is another way.

[dennemark]

I think another approach is to get the scene from the mesh itself. I guess you can get the mesh within the onModelLoaded function and then call getScene() https://doc.babylonjs.com/typedoc/classes/babylon.mesh#getscene

But useScene() is imo the better approach.

[saidmoya12]

Just use LastCreatedScene from Engine

import {Engine} from "@babylonjs/core
const getScene = () => Engine.LastCreatedScene

I recommend create your own helper file to export functions that you need

[brianzinn]

if you have multiple scenes running at the same time - useScene() hook will be safer. most people are single scene, so that Static method could be useful.