Okay, makes a lot of sense and explains the effect seen when turning multibounce on. So, when we make lighting changes, we could simply run a few updates of the scene and then stop to get multibounce?
There is only one possible anchor point per scene right? We place a VXGI anchor in the middle of the scene, which I presume overrides the normal camera-located anchor? Our scenes are interior / room-scale, so is workable for us.
I’m still interested in lightmaps as well. I have some strange ideas on things to do with that, and I think long-term its the best route for our project. Hopefully I can get the go-ahead to invest some time into it.