Yo Thankyou @sebavan and @Evgeni_Popov for helping get all my Spherical Harmonics working and helping me work out the kinks in my Babylon Toolkit IBL Baking Tools.
Now I can capture the ambiance and warmth of authored Unity scene in a self contained interactive babylon toolkit gltf file. The only code was setting the up the physics plugin, loading interactive gltf assets and attaching a Third person controller script component at runtime.
My recreation of Unity Starter Assets demo scene
Exported using the Babylon Toolkit and loaded on the Playground
https://playground.babylonjs.com/index.html?webgpu&BabylonToolkit#XNLKWY