Problem with lighting a room

Hey everyone,

I have the following problem:

If I open the window of my room, the sunlight doesn’t come through it. It is like it’s the same if I let the window opened/closed.

Why doesn’t the sunlight come in?

On my scene I’ve set the Skylight, the SkyAtmosphere and the Directional Light.

p.s: I mean, the sunlight doesn’t illuminate the room…


Thank you in advance!

Not sure if i have the best solutions but i am always turning of “Cast Ray Traced Shadows” in the Main Material. I am using Lumen in my scene and it works for me.

I’m doing some tests and I think the problem is in the mesh. Because I added a room created with cubes inside ue5 and the lighting seems to work well.
Maybe there is a problem importing the mesh from Blender to UE5, but I can’t figure it out.

I’m exporting a modular house, so the mesh is made up of individual components…

When exporting the fbx file from blender i am only changing the smoothing from “Normals Only” to “Face” and set “Triangulate Faces” to true (i have the feeling for large meshes the import in ue is faster) under Geometry.

and there might be some scaling problems cause blender is in meters and ue in centimeters.

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The problem was that I used a glb file, instead a FBX.

It works well now!