Need some input / raytrace

[Jim Rogers]

If you have your first floor plan open go to 3d and select "add lights". Then left click a point somewhere in or near the center of your porch area. Do not draw when you click, this will add a downward facing "point light". If you drag it will create a parallel light spot light.
Left click on this light, and you may have to tab to get it selected, and make sure it is on and un-check "cast shadows". This will make the area brighter and if it's too bright you can adjust this light's intensity by again selecting the light and un-checking "auto intensity" and slide the bar over to the left more.

Keep trying small rendering or ray traces until you get the lighting right then do a larger one....

Good luck....
And show us your results when done.....