Google Model-Viewer + Filament + PMNDRS post processing effects #5193

Hi all,

I'm wondering if I can combine the following technologies together:

Google Model-Viewer for 3D / AR viewer
Google Filament for objects/parts in GLTF to cast and receive shadows automatically instead of baking in AO maps
https://github.com/google/filament

PMNDRS post processing to add some realism to the scene.
https://github.com/pmndrs/postprocessing/

I see you can create custom post processing effects in Model-Viewer.
But I'm just not sure how such a third-party integration could work.
https://modelviewer.dev/examples/postprocessing/

Any guidance on this would be much appreciated!

Cheers,
Henrik