Is there a glass cutting tool that works well on vintage glass panes?

I’ve tried cutting glass with the old hardware-store-variety glass cutting tool years ago with little success. Bad tool? No experience? I don’t know. Now I have an old 1920s house and a number of spare old wavy glass panes and would like to cut these to fit. Is it hopeless or is there a tool, like a new variety, that would work? Thanks!