Creat a spotlight with fog terned on for it. Put it outside the room, aim it at the wall through the window. Render from inside the room. You will have to mess around with the settings of things to...

when you talk about a abandoned house and the sunset will show through the window, so are you talking about the light rays being visable comeing in to the room through a window and hitting a inside...

We will need more info in order to help. the glowing effect on objects ? or on the clouds in the sky ? if its for the sky what are you makeing it out off ? geo, image map, fluids ?

Would like to...