If I have a level that is working great but I need to make a single object change, rebuilding all the lightmaps would be a waste of time.
How can I get UE4 to just rebuild that specific object, especially if it is within a separate room of the same level and won’t affect all the other rooms?
I am assuming that since UE4 atlasses the lightmaps, that this might not be possible, but its worth a shot to ask you all
Along the same lines of thought, if I decide I just want to make a texture change on an object, does UE4 bake the GI into a separate Lightmap compared to the shadow? Looking under the global world lightmaps heading, it appears that the shadows are separate from the GI. Can I tell UE4 not to build shadows maps but just update the GI for that specific area in the level (i.e. room)?