I'm using wall with window from window pack one and shining a light through it onto the floor to simulate moonlight. I'm not looking for volumetric light, i just want a shadow of the window panes on the floor. The bottom of the window is 12 small panes of glass and the top is one full pane. When the light shines, all that is rendered is one big bright spot on the floor. Ive checked all of the cast shadows to no avail. It was working once, then when I came back the next day it wasn't working and I don't know why. Ive even gone so far as to delete the section of wall and replace it. Any ideas would be greatly appreciated.