Another question about the physical sun and sky, not sure if I should open another thread or not for this. I can't figure out how to have my model inside a sphere/dome (for background) and my model to have the exact same lighting as if the sphere/dome was not there. I turn off cast shadows and receive shadows for the sphere and I also disconnect it from sunDirection in the relationship editor and my model is receiving light but there's some really strong shadows.
What am I missing in making the renderer ignore the sphere except for color? Thanks.

edit: I know there's a background option in physical sky but in my experience it either doesn't work or it's very flat, I need a 3d background.