I remember reading through Steve Wright's book and getting to the part about the slice tool and thinking, what is this crazy slice tool thing? What punkass comping software is this cat using? And then I wanted my punkass comping software to have one.
O-slice is a Fusion macro that lets you graph two slices through your image. You can move the graphs around and control how they look. You can scale the values of the graphs. You can even see how the alpha channel graphs against RGB.
If you don't know why you need this, Steve will tell you.
Download O-slice_v1.4 (5kb .rar file)