Black objects in render view

Hi,
I’m trying to render but I see all the elements black
In a new file it’s ok.
Maybe are the dimension, light, material…
Thank you!

Attachments

w3d_15.blend (1.17 MB)

Moved from “General Forums > Blender and CG Discussions” to “Support > Lighting and Rendering”

25 km down the road to X you have lost one roof ;).
Join all on Layer1 except 8 grouped objects, select joined and ground planes on Layer 3, export to obj file and import back. Scale up.