Motion tracking modes

YodaVonBeck wrote on 3/22/2023, 2:46 AM

I have been using the built in Motion tracking mode for a few things so far.
The best result has always been if I need to put an image or text on a wall in a video using the perspective mode.

This time I want a text to "stand" on a beach and I having a bit of trouble, so I wonder if you could add some advice.

1) How should the "mode" be understood? I have tried change between them, but cant figure out their intended use.
2) Tracking size. It seems that my text box is forced to fit inside the tracking box. If I try to make the text larger it gets cut off.
3) Track outside of frame. It seems the tracking works moving out of frame, but not moving into frame in a panning shot. Am I missing something?

Thanks ! :)

Comments

NOVAdash wrote on 3/22/2023, 10:08 PM

I see this question and see that it is unanswered but will try to answer with my limited knowledge and assumptions.

1: Depends on how you want to use the object you want to attach to the tracking. Do you want it to rotate with what you're tracking? Change size with it? etc. For instance, if you want to attach a fake license plate to a car you should use perspective. If you want to attach a fake hat to someone's head, you should use location and rotation. If that person is also moving to/from the camera, use scale. Perspective combines all of these together.

2. You can transfer the tracking data. So far as I've found, Vegas likes you to use "picture in picture" in concert with tracking data, assumingly to prevent cut off.

3. "Frame" in this case is not a frame of a shot, but the frame of the rectangle you draw on the preview window.

I could be wrong about all of these, but I gave it my best one-two.

YodaVonBeck wrote on 4/4/2023, 2:55 AM

I see this question and see that it is unanswered but will try to answer with my limited knowledge and assumptions.

1: Depends on how you want to use the object you want to attach to the tracking. Do you want it to rotate with what you're tracking? Change size with it? etc. For instance, if you want to attach a fake license plate to a car you should use perspective. If you want to attach a fake hat to someone's head, you should use location and rotation. If that person is also moving to/from the camera, use scale. Perspective combines all of these together.

2. You can transfer the tracking data. So far as I've found, Vegas likes you to use "picture in picture" in concert with tracking data, assumingly to prevent cut off.

3. "Frame" in this case is not a frame of a shot, but the frame of the rectangle you draw on the preview window.

I could be wrong about all of these, but I gave it my best one-two.

Sorry for the long time since you replied.

Some if this does make sense, so I will try and use what you stated.

NOVAdash wrote on 4/5/2023, 6:53 PM

I must apologize myself. I only looked at your numbered questions but didn't apply my answers to what you want to accomplish with the standing text.

I agree perspective mode is great for flattening text onto a planar surface. I don't know how to make it so that text appears perpendicular without applying the tracking to a perpendicular surface. Would be interested to see an answer, if there is one.

fr0sty wrote on 4/5/2023, 10:59 PM

This isn't for 3D text effects, but it'll get you started. You can use 3D track motion composite mode, along with track motion, to tilt the text upwards, that should do what you're after.