Exactly. By “heavy” I meant that while it’s ok for small scenes, it’s totaly out of budget for large open worlds
Yes. I don’t see how tuning the skylight intensity based on any calculation could look close to other advanced realtime lighting technics used in other modern games (even not so modern as some of those technics has been used for years now). Your IBL intergration is the closest thing I’ve seen in Unreal.