With the upcoming of new generation of GPUs is it posible we can expect a better implentation of RTXGI in 4.26?
Something like this would be neat:
The current implementation is too expensive and having the probes may even allow for slow updating of the probes using CPU ray tracing, or no updating at all but having a workflow that would allow for static GI with no lightmap UV authoring and open world scenarios.
My wild guess is that most of it is already implemented in the engine as the current RTX implementation is tracing the rays and shading the results. Nvidia showcased a version of UE4 running this here: