Not sure if that answers your doubts (as I'm totally not into rendering), but from the forum thread[1], about one of the videos apparently (not sure which, or all?):
> is that video was rendered real time?
> Yep (well, the lightmaps are pre rendered but it take like 10 min. In engine, it runs at 50-60fps on a gtx670)
> is that video was rendered real time?
> Yep (well, the lightmaps are pre rendered but it take like 10 min. In engine, it runs at 50-60fps on a gtx670)
[1] https://forums.unrealengine.com/showthread.php?28163-ArchViz...
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