Be sure you adjust the exposure of your rendering in the Tone Mapping settings
. It is critical!
It will depend on several factors, so start with the screenshot shown above and after testing with a rendering, adjust as you think may be needed - ok, V2's environment dialog is slightly
different from the screenshot, but I think you can figure it out with a little effort.
Keep in mind that night shots are rare in photography of architecture, more common are Twilight shots - where the sun has just set, but the sky is still bright and colorful.
As written in step-by-step above:
Set your Sun in SketchUp where you would like to have the Moon shining.
Set your Sun and Sky Parameters as shown here.
Sun Color = 255,237,193
Sun Radius (Sunlight Slider) = 10 (use arrow keys on your keyboard for fine tuning)
Maximum Sun Intensity = 0.8 ("sun strength" in V2)
Sky Brightness = .2
Sky Turbidity = 3