I am extremely new to Blender, seeking to use it for architectural visualization for my fifth-year design studio. I am modelling in Revit, exporting as an FBX, and importing into Blender.
So far everything has taken PBR materials very well, except for the imported glass in both curtain walls and window families, such as below:
This was a quick test, only 128 samples, but I can't imagine more samples is the solution. Additionally a black ring is appearing on the floor of the renderings, which I imagine is a result of my glass. I am using an insanely simple node setup for the glass:
Any help is greatly appreciated.
Wireframes and quick render below:
Bottom wireframe is from previous posts' render. Thanks again!