my situation is thefollowing: I have three panes in front of each other. The one in thevery front is smaller than the others. I would like to make a sort ofwindow in the size of this pane that goes through the two others (sothat when I render out the final image as a PNG there is a transparentcut-out there). Just making the pane itself transparent obviouslydoesn’t do the trick because the others behind it still show. Doesanyone have an idea how I could achieve the effect I’m looking for?