Well, I need a bit of help from any Flash users around. I'm working on an assignment for class, I have a background image on the bottom layer, a white rectangle on the middle layer covering the background completely, and a white bar on the top layer that slides across the entire rectangle.
What I'm trying to do is find a way to make it so that bar is transparent and cuts a piece out of the middle layer, so as it scrolls past its revealing the bottom layer, but I don't want it to scroll over and cut away the whole middle layer to reveal it, just the spot its at as it passes. I'm planning on having it scroll past revealing parts of the background, then have the background fade in when its done (which I now how to do).
So, anyone know how to do this? I've done it once before on an old assignment in a flash class but I can't remember how the teacher went about doing it.
