Providing a clean and convenient API for the relighting of splats as well as for using proxy meshes to drive shading dynamics would greatly enhance the experience.
I came to this realization when attempting to port this PC project which uses a proxy mesh.
Once these APIs are added, canonical examples in the docs would be of great value to the community.
cc @Cedric
This would be call to have even if it needs a very beefy gpu 
Perhaps just a proxy-based shading demo then?
you mean a proxy mesh generated from the splats and additive blending?
Yes indeed.
I should work for opaque-like geometry. but for foliage, for example, it will be a bit messy.
or doing it directly with splats for shadow pass and getting shadow/light info per splat but then it will be quite slow.
Perhaps then an example focussed on opaque geometry? That may then work well along with a static shadow map baked on load, or in a separate tool which can handle the foliage, windows, and such.