Motion Tracking problems…

[Peter Van der zee]

I guess the position data is applied to the anchorpoint of the circle, so you can just reposition it to your startpoint. If its applied to the position-keyframes, you can change the anchorpoint data so it goes to its position.
A third possibility (if the keyframes are position) is to select all the keyframes made and drag your object (with all keyframes selected) to its startingpoint.

vanderzee.tv

[Mike Nagel]

Peter,

thanx for your help.

The only property I checked to track was ‘Position’ – so the properties that have keyframes in my Tracker Point layer in the timeline are:

1. Feature Center
2. Confidence
3. Attach Point

When I click ‘Edit Target’ and then choose my Paint layer and then click ‘Apply’ (apply for X & Y) it applies the keyframes from the attach point to the POSITION property of the paint layer.

Now as I said before, because I positioned the painted circle to the start position I know it should be at 362.5/241.5.

But the Attach Point data is 297.5/179.5 which causes the offset – and as I said the tracker data in the source window looks fine…

I probably misinterpreted your post, but I changed the position value of the first keyframe (that got the tracking data applied to), to the value it should be, hoping that all the other keyframes would be changed relatively to that keyframe – but it didn’t work…

Mike

[Peter O’connell]

Hi Don’t draw your circle mask until you have already applied the tranform to the solid layer.
Pete OConnell

[Mike Nagel]

Dave,

adjusted the Anchor Point to the position I knew I wanted to start at.

–> this changed all the position keyframes relatively to my anchor point position which achieved what I wanted.

Thanx !

Also, when I changed that Anchor point visually in the layers panel I get those red spots for the motion tracking data keyframes which basically block my view to position the anchor point manually…

How can I turn that off ?

I clicked on the eye ball next to ‘Track Point’ in the footage layer but that didn’t turn it off…

Thanx agaion for your help !

Mike

[Mike Nagel]

Wanted to share two other solution that I found:

1. click on the POSITION property in the target layer which now selects all keyframes and the adjust the position

2. David Bogie recommended the following solution to me:

Create a null and use that as your target!!! After that, parent your layer to the null and you should get a perfect track. The problem that you probably encountered is the first track point will equal the anchor point of your layer; which most likely won’t align. Using a null alleviates that problem.

In my opinion a perfect solution.

Thanx again everybody for your help !!!

[Jay Brown]

I have a similar issue

If i reposition the anchor point on the first frame as suggested (tracking data applied) it reverts to the offset on the next frame and thereafter…..am I missing something?

In my case I am zooming into an old retro tv. (footage to be overlayed in post). The screen has very rounded corners so I am using a mask. (as apposed to corner pinning a square)
The most useful tracking points are the corners of the case of the tv. but as I say I am struggling to find a way to reposition the anchor point of the mask so it scales and repositions for the full track.

Many thanks in advance …..