How to access a file in OBB? (Bypassing OBB file size limit for Quest)

Hey there,

We've hit the 2GB OBB file size limit imposed by Unity and are trying to get around that by adding our asset bundles to it post-build (opening it in WinRAR and dragging them in). This is for Oculus Quest and they allow a 4GB OBB.

The issue we're having is trying to get Unity to load the files from the OBB. Here's what we're trying based on this old post:

https://forum.unity.com/threads/ass....1570460924-369668790.1565618859#post-2679871

Code (CSharp):

1. assetName = assetName.ToLower();
2. string bundlePath = Application.dataPath + "!assets" + "/Android/" + assetName;

This gives me a "Unable to open archive file" error. I can open the obb file and tell the asset bundles are there.

Any help would be appreciated

Thanks!