Hi there.

Sory to hear your having problems with LIVE, it can be very temperamental sometimes. Stick with it though.

Sorry for keeping this short for now, but here are a few reasons why live may not be tracking your point past frame 17 (its difficult to see why its not without looking at your file):

- You may not have made the search area around your point big enough. After frame 17, where the track stops, the feature you are tracking may have moved sufficiantly in the plate for it to be outside of your search area. Try increasing your search area size.

- There may not be enough contrast betwen the feature that you are trying to track and its background. Try contrasting your plates in some sort of compositing program (like Shake or Photoshop), so that the features really stand out.

- The feature that you are trying to track may have disappeared from view or become obscured at frame 17. If so, simply replace your tracker on the frame where it reappears and try tracking again.

- You may have motion blur in your shot, in which case the tracker will easily lose where it was. Try maually placing the tracker throughout the motion blur.

- Windows can be really buggy with live. If it is because of this, I'm afraid I can't really help you. I use it with Linux, which is much more stable for it.

If all else fails and you still can't get it to automatically track for you past frame 17, just hand place the tracks yourself. This is really time consuming, but your eye is a lot more accurate at placing the tracker than Maya will be anyway, so you wil proably end up with a better result. Hand placed keys will show up as blue sections on the bars in the live interface.

Hopefully your problem will be solved by one of these suggestions. If not, just post up frame 17 of your footage or email the clip to me and I'll take a look.

Cheers

LisaG