Next, I put eight spotlights with the settings shown in the image below slightly under and outside the inner FBX layer. These spotlights emitted light upwards to emphasize the inner structure’s facade as the focal point, and were inspired by Len Lye’s artwork Fountain III.
Since the cliff edge looked too dark, I added some other spotlights with wider angles to light up parts of the lakefront. Last but not least, I put an area light in front of the outer FBX layer with the light direction facing down to the cliff surface. This area light mimicked lighting from inside the building bouncing onto the surrounding ground surface.