A few years ago, Creative Cow, featured a suite of FCP plugin software. The feature I remember most was the ability to do a traveling matte by determining the matte coordinates, where it appears in the frame, then the software takes it from there. If I recall, the demo had a Formula One race with the camera car-mounted. The software was able to composite a billboard ad onto a wall or bridge as the camera passed by. What was the software that accomplished the moving matte. I know I'm not crazy, I just can't remember. Thanks.