Hi guys and welcome come to perspective.
I've been tracking which will help you to track certain areas using the track motion and it's very interesting.
Our mission in this lecture is to track the green area here on the Hindhead form.
It really doesn't matter the movement of the phone whatever it is.
We'll track it very nicely.
Now some of you might be wondering why am I using the green skanking here or the king.
Well if you're not very well there is no foreground on this video.
You will use the king to remove a green screen when there is a foreground so you remove the background
that's supposed to be green and keep the foreground.
But over here there is no foreground.
There is nothing in front of the green screen.
So obviously keying is nonsense.
You will lose track motion with the perspective can of beans and it will do the job.
Start I would select the default layer of course and then click on track motion a single point has been
created for you if you come to the track type here it is transform.
I want you to click on it and go select a perspective corner.
Not will because this guy there is nothing parallel here.
So you go to perspective born of pain.
Now you have a four track bounce created for you if you come to the layer here in the tracker you'll
see four trackballs is born has exactly the same properties as a normal duckpond nothing different at
all.
So our mission now is to position the track points on the corner of the area we want to track.
And then of course analyze and then hit the target as simple as this.
So let's start by positioning the track points actually positioning the track points is the key of the
success of this maneuver.
If you like I will zoom in just a bit.
OK.
And take the first duckpond selected.
Click on it and just right now there are a few things that you need to pay attention to.
You're not only paying attention to the point of position but also you're paying attention to the line
itself is the line really covering the area that you want.
So let's take the second pin here.
Click inside and drag and just put it over here.
Being careful to make sure that the line is covering the area like this is not like this.
It is and I bring it as neat as the green area as possible.
Now let's position take point forward and that's what's going to happen if you click and drag the track
point is not moving any more because it has been stopped with the line you know connecting three point
one track three and three point four.
So maybe First we try to adjust the track monthly just come over here.
I just put it in the corner making sure that the line above here is ok making sure that the line here
is really covering the area we want.
And let's go to three point.
As simple as this.
Click on black and just put it over here.
Now you zoom out and what you want to make sure that the lines are covering the area that you want to
track.
So they added an area that will be trucked through that points.
Simple.
This is done.
All you have to do is to press on and allies forward.
Now depending on the speed of your computer this can go very fast or very slow but you need to watch
it.
You can AJ OK go make coffee come back because if there is a problem you want to see the problem now.
You don't want to start discovering the problems after you have you know completed the track.
You might want to stop it now.
For me I know it's going to go very right and I would be watching it but that would speed up the video
and get back to you when it has complete
OK so it has finished the tracking and not is there are thousands of keyframes here.
Let's first of all enjoy ourselves and put the video and see if we have done a good job.
Then we'll come back to the letter here.
Say exactly what happened in the letter.
I would take the version which is a nice airplane here and drop it inside the composition you know is
that the version video is smaller than the main video or the main video was then ETP.
This one is 720.
OK.
Let's see what happens after all the phone is not that big.
I would come back to the phone and of course I have to come back to the lead because while dropping
the version it has moved to the current position.
And I would say that we have only version and we click OK.
It's not going to ask you for X Y position.
Everything is set for the let's go and apply and see our work give it the second and play I press F
2 and play.
It has tracked it put the video using a certain effect and it's done at 100 percent.
Political guys right.
Let's go now and explain a bit what happened in the inversion layer.
If you click on it you'll notice that there is the corner in fact that has been applied.
You can come to ever Templi set and look for the corner pin it will actually help you to distort a video
or whatever you like using its four corners the upper left upper right lower left and or right the four
corners over here.
And that is that after effects has taken keyframes for every track point.
OK if you're not as blackpoint one here has keyframes for the attach point.
It has taken blackpoint one.
If it is this corner and put it on the upper left as simple as this.
So it used in effect and took all the keyframes from the track points here and put them on the corners
of the corner pin.
This is the corner in here.
I can move it by the way I'm just destroying the wart but just to show you how the current is working
Hey dealer fine.
I will undo this and the other one again.
So now you have done the job.
It is so easy to convert.
In fact I'd encourage you to come and use it.
Even that is one that is much better from CC and you have your animation pretty nicely done.
OK guys if there isn't anything that is not clear here because it seems very simple and it is exactly
please ask your questions in the challenge activity that will have to do the same work for a different
kind of form and a different kind of position and much higher movement.
Thank you very much for listening.
I will see you in the next lecture.