I had this idea to run a brush past a bunch of sky light windows on a track to make the shadows that are cast strobe just for fun but I cant get it to work. I have the brush running on the track and past the windows but it doesnt block the shadows, making them strobe. Any ideas? This is just for fun really. If anyone can figure out an alternative way to do it also, that would be cool. (The hammer picture has several brushes deleted to show what I was attempting).