Level streaming with one sun for all maps

First off this is for an archvis scene which hosts multiple houses on one map.

I’m having a bit of an issue with level streaming and having 1 sun for all maps.

I had tried to make a map “Sun” which had the directional lights etc which would be the persistent level and turn on the maps I wanted to light, it does not seem to light properly.

I can get it to light properly if I have the sun in one of my maps with one of my houses (lets call this house1), problem with this is I need to render this house as well as other maps when I am doing a light build.

I have tried to put the sun in another map with a house(lets call this house2) also and light that map just by itself and it does not light properly.

Here is house2 to the right when the lighting is built with a directional light in it’s own map

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Here is house2 when lit by the directional lights from house1(on the left)

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if anyone can shed some light(he he) on this I would be grateful

When you build the lighting, did you make sure you had every sub-level streamed in or loaded? If not, the lighting build doesn’t work correctly unfortunately.

But you’re going about it the right way, keep the light sources in the persistant level, then stream in sub-levels as you need them. So long as you build the lighting for every level at the same time by streaming loading them all in the editor, you should be fine.

I have them loaded in always, but not visible when I build?

You are saying all levels need to be visible?