@Krass
Sorry this took so long. I finally figured out the black spots in your loft scene (with the help of AI).
The cause: several materials use their color image as the normal map. A normal map is the purple-blue image that tells the renderer which way the surface faces at each pixel. When you use a color photo like wood instead, the dark parts of the image make the surface face into the floor, and those spots go black. That's why they follow the wood grain and show up mostly in the darker areas.
These are the materials where I found it, with the textures from your TEX folder:
Floor ([Cinder Block]): uses WoodFloor032_2K-JPG_Color.jpg as the normal map. It should be WoodFloor032_2K-JPG_NormalDX.jpg.
Underside of the mezzanine ([Cladding Stucco White]): uses Material-588-S_BaseColor.jpg. It should be Material-588-S_NormalDirectX.jpg.
Kitchen island countertop (*16): uses 014chataignier.jpg. This one has no matching normal map, so just switch the normal map off.
Sofa (leather): very likely the same thing, worth checking.
Here is the same view before and after, with only the floor and mezzanine normal maps switched off:
[image: image.jpeg]
The kitchen island was just reflecting the black floor, so it cleans up too. With this fixed, you shouldn't need the Photoshop cleanup anymore.
Thanks again for sending the scene; it made this much easier to track down! (1 year later).
Cheers,
Thomas
