PNG and PSD files are still-image files. There can't be any motion in them. So what motion are you trying to track?
Thank you. I am trying to track a mask placed on the PSD or PNG file. You see, I have two layers, top layer is PSD of bricks, the bottom layer is a movie file of a car driving past a wall. I had to layer in the bricks to clean up a dirty wall. But when the car drives past, the bricks layer on top of the car. I'm wanting to create a mask, and track it so that when the car drives by, the bricks don't sit on top of the car.
I just recently found out the ability to RIGHT CLICK and adjustments layer mask and select TRACK MASK, so AE would automate the process. I'm curious if this is possible? Thank you!
Nope, that's not how it's done. It's a little more compolicated than that:
- Duplicate the car layer. Put it above the bricks.
- Make a mask around the car. Do it just before the car gets in front of the bricks. Be very careful when masking. Click the stopwach icon on the mask path property.
- Go forward in time until the car is just past the bricks. Double click on the mask path you made earlier: a box forms around it. Drag it back over the car and tweak mask vertices as necessary.
- RAM Preview and adjust the mask path as necessary.
There you go.
You track the motion on the layer that contains the motion---the layer with the car in this case.
You would have two copies of that layer, one for the foreground object (car) and one for the background. The patch of bricks goes in between.
It looks like Dave types faster than me. ;-)
Roughly the same answer, though.
Okay very good, I'll try that men. Thank you very much.
Allow my ignorace, would it be quicker to do this technique as described above or use a 16 point garbage matte in premiere? Thank you.
You will not be able to get a tight-fitting mask around a car with a garbage matte in Premiere Pro.