If the light is coming in under the walls, put the floor brush inside the wall brushes. Also don't make the walls detail (only the stuff inside the room should be detail).
To post an image, you have to upload it to a web server and post the URL address of it here. Your Internet service provider should have some free web space for you--check their web site.
OK, figured that out. I did not scale my sky texture which will emit light patterns because the light in the texture is too condensed when not scaled properly.
"all the governments in the world are corrupt and in the hands of the Illuminati"