This was a scene I created just after I learned about ambient occlusion. I was used two lights in the daytime scene. A spot light for the sun coming in the window for the sun and a second area light for the ambient light coming through the window. The night time scene has one light in the closet. The image outside the window is a render from another scene. At the time I was putting an ambient occlusion shader on an omni light. I have now been putting the AO on the material. I didn’t us final gather or global illumination in this scene.