State of skylight interior lighting in 4.15

[RiccardoR]

@IronicParadox;694531

Then fake the transition another way. Switch the skylight directly off and switch on some kind of ambient light inside, then fade THAT light down. If you do your color matching correctly, it should barely be noticeable. Just play with auto-exposure while the transition is occurring.

Also, make sure you switch off any stuff like DFAO and far shadows BEFORE you start lerping the skylight. If you had DFAO going, while it was trying to do that, you’d probably be hard-forcing the engine to update the DFAO every frame. r.DistanceFieldShadowing and r.DistanceFieldAO can be toggled on/off in blueprints with the console command node. Oh and you can also just disable the skylight’s shadow which will kill off the DFAO as well.

We don’t use DFAO, just a stationary skylight with static shadows on, dynamic shadows off.
It seams to be heavy to change skylight value at runtime.