Check that you have the scability options at least high
In the project settings make sure that “Dynamic Global Illumination Method” is set to “Lumen”
In the graphic window change the view mode to lumen overview, if everything is black, make sure that the meshes have the “Distance Field Resolution Scale” at least 1
I wasn’t sure what you meant by “is the same than use de graphic window,” but I went ahead and put that command in the console and all it did was lower the lod.
You probably just need to crank up the exposure. In photos or videos of rooms where light from outside is hitting the floor, the floor in that spot is typically near white/over exposed in order to get decent exposure for the rest of the room.
Well, I tried cranking up the sun intensity and indirect lighting (picture 1) as well as the camera exposure (picture 2). Both gave me terrible lighting where the light seriously flickered on the walls.
Picture 3 is where I took off the roof. That actually worked well, but removing the window or even the walls on that side of the house did nothing significant.