Hi! I’m starting with UE4 and I did this render without furnitures with “sun and sky” in “stationary” mode and the first render as seen is the result (I’m okay with that). But if I switch the mode of “sun and sky” to “movable” and I do nothing more, the result is the second render. Very ugly, and the ceiling is extremely dark and the colours are very poor. ¿How can I improve this?
Well, stationary benefits from pre-calculated lights and shadows. So it’s not flexible in realtime by nature. Moveable is meant for realtime changes on geometry and/or lights and cannot work with pre-calculated lights. That’s why we love raytracing. It enables calculations for quality lights and shadows in realtime.
Depending on your scene, you can have a mixture of multiple light setups.
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Yes, I’m using raytracing, but only in ambient oclusion, not raytracing global ilumination, because it slows a lot the FPS and I can’t work. If I turn on raytracing GI, the ceiling improves a bit, but slows a lot the FPS. I was looking to do an interactive scene, where you can change the hour of the day, but I think I’m going to use stationary light and movable objects for the moment…
Depending if you are going to move the camera and where you place it, you can try Screen Space GI, is cheaper than raytracing, but like Screen Space Reflections, it depends a lot on the point of view and the stuff on screen.
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Sorry, I’m spaniard 
I’m trying to make a full customizable house, and have the posibility to turn on and off the lights, move the hour of the day, etc. But it causes a lot more of problems than stationary lights…