I am trying to mask something from a video. I made a tracker and it follows the item perfectly. I then made a mask and applied the tracker to the mask. The mask follows the tracker, but not exactly. It seems to be trying to smooth out the moment, and therefore gets out of position. I guess there is a setting something to control this, but I can not find it.
Any help greatly appreciated.
MacBook Pro 16″, macOS 14.4
The mask follows the tracker, but not exactly. I guess there is a setting something to control this, but I can not find it.
Of course you can control it. In addition to adjusting the options in the tracker as Luis said, you can also manually modify the analysis data to adjust it.
What effect did you use to hide it? Please show me a screenshot of the effect inspector. Please press control+⌘4 to display the inspector vertically and take a photo. I would also like to see the tracker information at the bottom.
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Thanks for getting back and sorry for not being clearer.
So my process is to take the clip, add a tracker, rename it, and hit analyse. At this point the tracker performs perfectly, sticking to the object exactly.
Then I add a solid black, the draw a mask to hide the item that has been tracked. Then with this clip highlighted I click the transform button, select tracker, select the saved track. Deselect scale and rotation. The mask immediately moves out of position at this point. I reposition it again to cover the item. However when I play the clip, the mask is moving, but it is not fixed to the tracker. It seems to be moving in its own world.
Here you can see a few frames in and the tracker and mask are no longer together. Both have moved, but just not in the same direction!
It seems like it should be so simple, but just cant work it out.
Example
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1. I have a camera on a gimbal. Apply “Draw with Mask” to the red semi-transparent custom clip to hide the camera.
2. Analyze camera movement →Tracker name: Camera →Uncheck the adjustment.
3. Manually correct position of tracking data.
⚫︎
4. Sample video 1
5. Adjust the mask shape using keyframes.
6. Sample video 2
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Waist harness installed: Original
The waist harness is hidden. Draw with mask + Tracker. Mask opacity 85%
Correcting the tracking data is the most important thing. This is because it is the basic data for animation.
It is nearly impossible to tell what is wrong with just this information, but when you associate a tracker you can check several items including position, scale, rotation… off the top of my head I’d say try different combinations of these checkboxes and see how they affect the end result.
Is it correct that what k57skye wants to do is "I want to paint the waist part black so that the device the man wears on his waist doesn't blend in with the color of the sea'"?
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They took the first link away.. I will try this one.
I want to cover the waist harness with a mask to make it look black.
[Edited by Moderator]
They took the first link away.. I will try this one.
The link will be shared via email. The sample I would like you to send is not a recording of the editing screen.😅
I would like you to send me a short version of the original clip as a sample. You can't actually verify it without a sample.
Thank you for the sample.😊 People who follow the FCP community will be notified by email of your posts. Links to threads may be deleted at the discretion of the moderator.
It is important to be able to modify the tracking data as shown in the example. Please refer to the above for how to do this. Anyone who uses the tracker function must have knowledge of modification. Because AI analysis is stupid.👎
Simply delete unnecessary keyframes in your data and move the tracker around in the viewer. I think anyone who can create keyframe animations with FCP can easily understand this.👍
FCP mask not following tracker exactly
