Display Lighting Help

Hello, when I am in Rendered mode, my model is extremely dark and has lots of shadows. I already reset the display settings to default as well as the sun settings. Any suggestions? Screenshot attached. I am in Rhino 7 on Windows and imported original structure from a file I created in Revit.

post your file?

There’s probably no scene lighting set up. In the Rendering panel (Rendering command), click ‘Reset to Defaults’ at the bottom.