Rendering parameters in R8

The tower with the brown, intersecting geometry is probably with a material that has displacement on.

Unless you really need PBR displacement and you know how it works I’d stay away from it.

In fact it is not a PBR. It is a photo applied to the box. This happened when I changed the texture in the gold part at the top of the drawing. I did nothing with the map parts attached to the brown boxes which are not brown but hammered metal from a Rhino .rmtl file.