Azure is down so *.babylonjs.com is too

alexchuber · October 29, 2025, 9:46pm

Leonardo_Villalobos · October 29, 2025, 10:05pm

Given the fact that I’m a rookie, guessed that downloading the framework version from your github page (Release 8.33.4 · BabylonJS/Babylon.js) would be independent of your CDN. I know it was very naive from me, but just playing around with BABYLON. So, how can I make my files of the framework version independent from your CDN. Do I have to change the base URLs to “my.wonderfull.server” and transpile again the TS BABYLON forked files to javascript? Excuse me if asking a stupid question. Just a noobe! By the way, is there a way to modify the base URL to avoid transpiling thing? Not familiar with TS. I know it’s contrary to the tree-shaking structure, and also sounds lazy, is there a way, for guys like me, that just want to use the javascript bundle compact standalone version of BABYLON?

labris · October 29, 2025, 10:55pm

The main source of confusion is the lack of a definitive list of Babylon CDN resources needed to create a self-contained, local setup. A secondary challenge is understanding how to correctly integrate the necessary links into the code.

A potential solution would be a single script - such as an ExternalResourceLocalizer - that handles all external dependencies. By importing this script and its associated resources, developers could achieve a fully local Babylon configuration.

Deltakosh · October 29, 2025, 11:15pm

I like that idea a lot. Initially we tried to document it in this page:
Documentation/content/setup/frameworkPackages/CDN.md at 128eb8d0b6e4441795bb5d28892aa737cf15145e · BabylonJS/Documentation

Do you see missing things there?

Live: Babylon.js docs

Leonardo_Villalobos · October 29, 2025, 11:34pm

Tryied @alexchuber 8th comment suggestion, with just the resources needed for my webpage, and the inclusion of the suggested code by @alexchuber in line 2 of my script file (“BABYLON.Tools.ScriptBaseUrl = ‘./your_babylon_base_directory’ “) and it worked for me. At first, after line inclusion, browser throw glslang not found error, but it was because did’t had the resource in the folder, after copied browser throw the twgsl error, but once copied local no errors. Suggest to try the @alexchuber solution at least for basic and elementary webpages and/or webapps, in case you need to rely on your local copy of BABYLON.

labris · October 30, 2025, 12:03am

I am not sure that this list is complete, I don’t see even scene.createDefaultEnvironment()

github.com/BabylonJS/Babylon.js

packages/dev/core/src/Helpers/environmentHelper.ts

7ca893985


      
              groundSize: number;

              skyboxSize: number;

              rootPosition: Vector3;

          }

          

          /**

           * The EnvironmentHelper class can be used to add a fully featured non-expensive background to your scene.

           * It includes by default a skybox and a ground relying on the BackgroundMaterial.

           * It also helps with the default setup of your ImageProcessingConfiguration.

           */

          export class EnvironmentHelper {

              /**

               * Default ground texture URL.

               */

              private static _GroundTextureCDNUrl = "https://assets.babylonjs.com/core/environments/backgroundGround.png";

          

              /**

               * Default skybox texture URL.

               */

              private static _SkyboxTextureCDNUrl = "https://assets.babylonjs.com/core/environments/backgroundSkybox.dds";

Deltakosh · October 30, 2025, 12:15am

do you mind updating that doc? Let’s make sure we have everything lol

labris · October 30, 2025, 12:47am

I don’t mind but probably there are some other external assets which may be missed?

Do Havok or Recast work when CDN is down? I haven’t check personally, but maybe somebody knows the answer

Also, this line also needs correction since it is related only to some resources, not all resources (no environment files).

github.com/BabylonJS/Documentation

content/setup/frameworkPackages/CDN.md?plain=1

128eb8d0b


      
          ## Deploying your own version of the resources

          

          As the notice above states, it is not recommended to use the latest CDN version directly in production. Although the Babylon team won't do it deliberately, it is always possible that something could go wrong during the build or deployment of a specific version, and that the CDN could be updated with some code that will break your production application. We also can't guarantee 100% uptime, though we do our best to keep the server online.

          

          Babylon itself is using the CDN throughout the framework, for example with Draco or Basis decoding, or the inspector. When loading these components without loading the module yourself before, the CDN will be used to download the file.

          

          Babylon allows you to either load the module yourself and inject it to the components that are using the external dependencies, or allow you to provide a different base URL (or a full URL) for all components, or for each component individually.

          

          ### Simple - Changing base URL for external resources

          

          To change the base URL for all resources loaded by Babylon use the static member of tools:

          

          ```javascript

          BABYLON.Tools.ScriptBaseUrl = "https://my.wonderfull.server";

          ```

          

          Of course, this can be done in ES6 by importing `Tools` and setting the `ScriptBaseUrl`.

          

          Any resources loaded in our core library will be loaded from this URL instead of `https://cdn.babylonjs.com`. The structure needs to remain the structure of our CDN.

          

          What are the simplest way to get the resources structured? Let's dive in.

Deltakosh · October 30, 2025, 1:41am

Yes I do agree. Let’s already do some of the changes. Let’s see for havoc (@Cedric ) or recast(@roland)

We may not get all of it in one shot but we will improve over time:)

roland · November 1, 2025, 7:20am

Recast is loaded from https://unpkg.com/@recast-navigation.

You can also inject your own Recast instance:

export async function InitRecast(options?: { version?: string; instance?: RecastInjection });

export type RecastInjection = typeof import("@recast-navigation/core") & typeof import("@recast-navigation/generators");

labris · November 1, 2025, 10:17am

Is there a way to choose .bin file URL for AreaLight?

https://github.com/BabylonJS/Babylon.js/blob/5695bd3bd826fc07e85058dad1da73dd43e8e874/packages/dev/core/src/Lights/LTC/ltcTextureTool.ts#L27

alexchuber · November 3, 2025, 8:31pm

cc @srzerbetto

Leonardo_Villalobos · November 6, 2025, 5:54pm

I don’t want to be a pain in the asgard of nobody, but there are 33 references to “.babylonjs.com”, in the babylos.js file, including following list (cdn, core, assets, preview, snipet, controllers, and playground). So, the line ‘BABYLON.Tools.ScriptBaseUrl = “./babylon”;’ that I used in my code to load everything from “my.wonderfull.server” will still working if using assets, the babylon loading logo, or other features?

Deltakosh · November 7, 2025, 5:16pm

Ir really depends on what you use. If you are doing XR we may need to load the hand meshes if you do not provide yours, etc…

The best way would be to run your experience and look at the network monitor to see the requests to *.babylonjs.com

alexchuber · November 7, 2025, 8:38pm

A hodge-podge of thoughts here about how these URLs fit into our “global” configuration options:

CDN and Asset URLs
If a URL has cdn.babylonjs.com or assets.babylonjs.com, it should go through GetAssetUrl() or GetBabylonScriptURL(). These swap the base for AssetBaseUrl or ScriptBaseUrl.
Note that there could totally be some missing cases, since many of these URL configuration changes are fairly recent. ~~It sounds like AreaLights is one.~~ (EDIT: Just kidding. It’s configurable via AssetBaseUrl. Don’t know if it can be configured individually, though.) Possibly recast too, but since that’s part of an add-on, I’m not sure if it needs to fall under ScriptBaseUrl.
About AssetBaseUrl
My earlier suggestion to just use ScriptBaseUrl was misleading . As you and @labris pointed out, this doesn’t affect asset URLs in core, such as the default environment. To affect these, use AssetBaseUrl instead. The asset server contents live in the Assets repo. If you want to serve both the CDN and asset server together, you can set both base URLs at the same time using CDNBaseUrl.
The docs have been updated to reflect this… though I just realized I forgot to include instructions on how to grab the asset server contents…
Snippet URLs
I’m not aware of a way to configure snippet.babylonjs.com. I’m also not sure there’s a need, so this might be a non-issue?
Controller URLs
I believe there’s some level of configuration for the controllers.babylonjs.com URLs, but probably not through ScriptBaseUrl or AssetBaseUrl. If anyone knows more, please chime in!

And thank YOU for taking the time to dive into this. There’s still more work to do here, so please don’t hesitate to share what you find. All the feedback in this thread has already been incredibly helpful

Topic		Replies	Views
How to inject `@babylonjs/ktx2decoder` into Babylon? Questions ktx2	41	386	March 6, 2026
Physical Based Rendering Questions	30	1803	March 17, 2022
Asset missing from BabylonJS CDN breaks scene.createDefaultEnvironment() Bugs	12	211	October 29, 2025
Babylon cdn slow/failing this morning Questions	2	417	November 3, 2022
Issues with self-deploying babylonjs CDN Questions cdn	8	163	September 17, 2025

Azure is down so *.babylonjs.com is too

Related topics