Cancel ImportMesh request

Questions
1

Hello,

I am loading STL files using ImportMesh (or ImportMeshAsync) in a canvas that is part of a SPA app. When navigating away from a specific page, the GL canvas is left in place, but I would need to cancel the request to load when navigating away. Is there a way to tell ImportMesh(Async) to cancel its request?

Thank you for your help.

2

Hey!

Unfortunately no. but you can use the callback to handle the case the user has already navigated away

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3

Sounds good. Thank you!

4

I was struggling with this as well, as we have a UI where a user can import a mesh. And this is a pain especially if the file is big and the user changes his mind and changes the file.
So waiting for a file to finish downloading, then cleaning it up, was not a great option.

I found a hacky way though, to abort a web request.
Import mesh returns a ISceneLoaderPlugin or ISceneLoaderPluginAsync.

const plugin = BABYLON.SceneLoader.ImportMesh();

Those plugins have an onDisposeObservable, and there is logic inside a SceneLoader that aborts a running request if onDisposeObservable fires an event.

So all I needed to do was notify observers.

(plugin as any)?.onDisposeObservable?.notifyObservers(plugin);

Would be great though if there was a public API for this.

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