How do I clear a scene, model, lights, materials, canvas, etc.?

[C-Hensin]

When I leave babylon.js scene page, the canvas is still there and I can manipulate the scene model. How do I clear a scene, model, lights, materials, canvas, etc.?

[labris]

The simplest way is to use scene.dispose() to release all resources.
As for canvas element it relates to DOM and can be removed with canvas.remove()

[HiGreg]

@Deltakosh

And btw you can just call engine.dispose() to achieve the same goal

Also see:

How can I properly clean up (terminate) babylon js engine (scene)?

I tried deleting engine obj like delete engine, but it seems to keep using CPU and memory. I might make some mistake here, so would you show me how you clean up Babylon scene in your web app or something?

Proper way to Clear entire scene

Completely Clearing a Scene

As I said elsewhere, I’m trying to create more scenes for my Merlin and Morgana tale and that will involve deleting all my previous meshes, materials, textures and audio. On a previous attempt, some years back, I just used dispose.scene.(). Recently I found this thread from the old forum : Proper way to Clear entire scene. It seems that the recommended method is : scene.dispose(); engine.dispose(); as I gather it will delete all textures and audio files. Any thoughts and suggestions as th…

Clearing the scene and engine - is this overkill?

If I want to clear EVERYTHING to free up all the memory consumed by BabylonJS (forgetting about Chrome’s poor memory management at least…), is it enough to simply call: engine.dispose(); engine = null; Or should I try to manually dispose and set all lights/cameras/materials/meshes to null? Right now I am using this code, and wondering if it is overkill: for (let i = 0; i < this._scene.cameras.length; i++) { if (this._scene.cameras[i] && !this._scene.cameras[i].isDisposed()) { this._scene.…

[C-Hensin]

I tried your method and it worked very well and helped me a lot, thank you. By the way, how do you clean up the memory occupied by the scene?

[C-Hensin]

I tried to find answers in the resources you provided and also found a solution that helped me a lot, thank you!

[labris]

@C-Hensin

clean up the memory occupied by the scene?

If there are no references left, Garbage Collector will do the job automatically.

[C-Hensin]

I see, I see, thank you!