Lighting Question

[Roughing]

This has probably been answered already, but no luck after searching. How to render sun & sky w/ interior lights? Having issues in this scene.

[DareDevil]

You can render interior light and sun & sky in the same scene.

But the sun light is very powerfull, so the interior light cant be visible.

In your scene, i dont know where are the interior lights, but there are big windows where many sun light can flood the room.

You can test with layer, assigning all interior lights to layer 1 (sun & sky is in layer 0) and disable layer 0 to see the interior light only.
Due to relative powerless of the lights compare to the power of the sun, the interior light layer would be very very noisy.

Little sample with a one side open corridor and a 70 watt fluo :
1 - sun & sky and light (5 min render) : you can see where is the fluo, but not its light
2 - same render, layer 0 disabled (without sun & sky) : the noisy light of th fluo
3 - same scene, only fluo light and black environment (1 min render) : better render for the fluo light without the sun

[Roughing]

Thanks DareDevil, I was using an older version, and I could not figure out why its not working, thanks. I have noticed a lot of other users that had sunlight, had no interior illumination, maybe it was just a SU thing.

[DareDevil]

no interior illumination, maybe it was just a SU thing.

No, it's real life
Just try : in a sunny day turn on your light in a sunny room, you cant see the light illumination, the light cant fight against the sun
Full sun light is about 50000 - 100000 lux and a light room is about 200 lux. How can you see 1 lux from your light lost in 500 lux from the sun ?

If you want to see the interior illumination, just boost the power of the light at 30000 watt with a 100% efficiency. With that, the light can compete against the sun... but now is not the "reality"