[Unity 2020.1] About unityInstance not beeing global anymore

[Shiiv]

Hello,

We can see in the documentation that to call a C# methode from jslib, we have to use “unityInstance.SendMessage(…)”.
But since 2020.1, “unityInstance” is not declared as global by default in the “index.html”, so after each build, i have to tweak the “index.html” file before i can actually test my application.

Is there a way to call “unityInstance” inside the jslib without having to make it global in the “index.html” file ?

Thanks for your help

[Shiiv]

I’ve found that the default template is located in C:\Program Files\Unity\Hub\Editor\2020.1.0f1\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\WebGLTemplates\Default\index.html.

So this solved my “tweaking file after each build” thing.
But still i would like to do a Module that would work seemlessly with Webgl/Standalone/etc, and now if someone whant to use it, he will have to remember to tweak the file after each Webgl build, or create a new template just for this specific module to work.

And having access to the unityInstance seems very usefull, i dont understand why it have been removed from the default template ? This is causing a lot of webgl asset to fail in the asset store too.

So still if i could at list access this unityInstance in the jslib somehow, without having to change the template, that would be great if anyone know

Thx again ^^

[qq98360_unity]

see.

Changes to the WebGL loader and templates introduced in Unity 2020.1

The following changes have been introduced to the WebGL loader and templates in Unity 2020.1: Unity now generates a build-specific WebGL loader, which is stripped and optimized based on the selected player settings. WebGL templates can now use conditional directives and JavaScript macros. Build configuration is no longer stored in an external JSON file, but is embedded directly in the html. The WebGL instantiation function now uses the target canvas element as an argument, which gives the deve…

[Shiiv]

Yep i already saw that, but i believe it gives no hints to how we can access the unityInstance inside the jslib without having to tweak the index.html in the default template (or after each build).

[qq98360_unity]

finally, i copy the default template and :
.then((ui) => {
unityInstance = ui;
…
and outside ,
function getUnityInstance() {
return $(“#iframe_unity_id”)[0].contentWindow.unityInstance;
}
Actually, i want honw how to touch unityInstance directly without use template too

at least it works

[Shiiv]

Yep, its sad to loose the default global unityInstance, but the worst thing is having to tweak the index.html just so we can use the unityInstance inside the jslib
I have no knowledge about the technologies involved but i feel that they must be a work around, witch is why im posting here in the first place ^^

[De-Panther]

The code of the jslib is inside the unityInstance.Module.
So inside the jslib you can just call Module.SendMessage…

[Shiiv]

@De-Panther

The code of the jslib is inside the unityInstance.Module.
So inside the jslib you can just call Module.SendMessage…

Yes it works !
I saw you post about this where you talked about “Module.UnityInstance”, but it didn’t work and when i did inspect the Module variable i though it was null so i did not investigate more. That was a mistake obviously.
I don’t have so much time to see how all of this works right now so this is helping me a lot !
Thank you

[De-Panther]

You can open the Chrome or Firefox dev tools and print the content of unityInstance after it loads, you’ll be able to inspect all the methods/variables of it.

console.log(unityInstance)