I'm looking for a open source PBR rendering engine that I can use.  Basic requirements are Windows (C/C++) and free to use type license.

The first two hits I get on Google are:

Filament
https://github.com/google/filament/

LuxCoreRender
https://luxcorerender.org/

Does anybody have any experience using any of these, or do you recommend something else that's better?
Thanks.

Pluses: Active development, easy to compile, zero dependencies.

There are several. More and more.

I remember Lumix.

I've only come across a few so far.  I'd like to get some opinions on them too if anybody has any experience using them.