Hm, from another post[1]:

> 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)

So, if I understand correctly, that's 10 minutes for some "lightmaps prerendering", but then "real time scenes rendering"? But I'm totally not into rendering, so sorry if that's what you meant, and if that's something obvious I'm just missing.

[1]: https://forums.unrealengine.com/showthread.php?28163-ArchViz...