My app is ES6 tree-shaking app and when I import inspector there it increases my bundle too much. From 5mb to 38mb just because of Inspector. And my build time increases from 1.5sec to 12sec. So I decided to use Inspector as a external library like this:
Hm, as far as I understand, these debug imports also will be included in a final build? Or not? I donāt know how to load DebugLayer externally as I think Inspector doesnāt create it by yourself
Maybe thereās some problem with my Webpack config but this dynamic import imports all the ādebug.tsā imports on bundling stage. So I have included all the imports in my bundle uncluding dynamic imports content.
But I think itās a correct behaviour. If you will not add all the contents of Inspector module in the bundle, then from where you will load it when you will call a dynamic import?
My idea was to load Inspector after bundling stage to avoid including its contents in a bundle.
I have this option exactly like this. Well it looks like I should move my webpack config to split chunks I think as it bundles all what it can bundle too aggressively
But anyway, I think it will bundle it but as a separate file. But it will also waste the building time during bundling stage. Maybe it could be possible to turn on some cache to not rebuild Inspector files and others that was not changed.
The main principle is that the build is divided into different chunk files and the inspector dynamically import() only when needed.
Later I will create a git repository with a full example.
The repository code is stripped from my private project, refactored to match the completeness of the demo, and all Chinese comments are translated to English using DeepL.
So please take what you need and ignore the code you donāt need.
Could you please tell me, is it needs to do tsc before vite build? I thought Vite works without tsc but after looking into your repo I see that npm build there looks like this tsc && vite build.
The packages.json was automatically generated when creating the project via pnpm create vite bbl-inspector-demo ---template vanilla-ts, and I didnāt make any special modifications, except for adding packages.
My personal understanding is that tsc is there to do typescript compilation checking, to eliminate typescript compilation errors before build.
If you remove tsc, vite build should still work.
Well, I donāt have a repro but it simly calling this code by a click some keyboard key:
const script = document.createElement( "script" );
script.src = "https://cdn.babylonjs.com/inspector/babylon.inspector.bundle.js";
document.head.appendChild( script );
setInterval( () => {
scene.debugLayer.show( {} );
// or:
;( BABYLON as any ).Inspector.Show( scene, {} );
}, 2000 ); // it doesn't matter as appendChild should be synchronized
Both cases lead to:
Uncaught TypeError: Cannot read properties of undefined (reading āDebugā)
at babylon.inspector.bundle.js:2:772
at babylon.inspector.bundle.js:2:823
A project is pure ES6, with ES6-imports. Also I tried to import all the debug package:
import "@babylonjs/core/Debug"
but it leads to the same error.
I just wanted to load Inspector separately (on-demand), without bundling in as it weights too much.
This package of the inspector is meant for the UMD (or CDN-based) Babylon packages distribution. If you want to load it on demand in a project using the es6 packages you will need to do something like this:
Yaeh, sure, but it doesnāt help as in this way a bundler (Webpack) will bundle all those imports in the final bundle which is too heavy operation when it comes to Inspector. As it adds about +40mb to a 4mb bundle size in case of Webpack without chunks (single bundle file). Thatās why I tried to load Inspector separately after my build will run.
