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Hi Guys welcome to this news section about motion tracking this will be quite interesting and I know



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you're looking forward to learn motion tracking and to make some fancy things for your videos and that



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will be quite cool by the way.



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After Effects allows you to track objects in motion meaning moving objects such as this boat you're



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seeing here.



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This is a boat that is in motion so it's an object that is in motion.



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We want to track it inside the video.



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And after we track it we'll get a track that is in motion but if you'd like to say so and then attach



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other layers or other compositions and even effects to that motion track that we have created.



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Now this is very useful and gives you a very nice effect and I'm sure you have seen very many of them



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on TV.



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We are going to do it very easy here.



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We are going to create a track that's the first thing we want to create.



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Then from there on we will understand how to manipulate the track when it goes wrong.



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And then we start attaching text and peak arms and stories like this to the truck.



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Now how they get started with a motion tracking.



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If you come to an emission here after you choose your lead you can see you can track the camera I will



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see that track a Mocca I will have a special course about Mocca.



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And that is the stabilizer of the earth.



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That's an effect.



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And we have track motion and not as there is truck umask and track is certain property fine.



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So now we are only interested in truck motion.



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Our can click on the track motion and the tracker panel will appear.



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Also you can come to a window and call up the tracker panel and that will appear also as they can then



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put that up so we can open it to the maximum.



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First of all let's look at this panel.



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It's a very interesting panel.



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Its name is tracker right.



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Fact what you can do here you have four main options but two have them here only affects camera and



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Wopat stabilizer just effects if I enable this one by clicking on it you know this is starting to work



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something and is just in effect you can enable it and disable it.



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I will delete it.



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OK.



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What sterilizer is the same is an effect and you start analyzing in the background analyzing your video



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so you can put it on and off.



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OK.



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So we have seen this or that that affects will study them in this section.



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What we want to focus on now is track motion.



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So our click on track motion.



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It's created a current track called tracker 1.



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This is a track like a motion path.



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OK.



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And the motion source is the video itself.



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Could the track type is transform.



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This is the default but also you can have stabilize a corner and perspective can happen in this world



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we are going to work on all of them except of course.



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So sometimes that transformed is Appian and you will get through this get it back to transform.



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Now we can track position rotation and scale.



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And also we can have a target so that the tracking is done.



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We can attach a target here as you can see there is no targets yet.



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We cannot lead.



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We can effect with point control and that's pretty interesting.



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It's cancelable.



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Let's have a closer look at the track point.



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I was just in.



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So you're not is that all of this is the track point.



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It has the big square which is the search region that's the search region outside.



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This is where it's going to search to find the small square where to place the small square which is



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the feature region and within the feature region it will put a feature center that will be keyframe



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now called feature center.



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Now this small cross here is not the center.



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It is the attach point.



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It is to this point you are going to attach other layers effects or whatever you want that it may be



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tacks or so.



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So after effect we'll look in the big square which is the search region.



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So it's going to search around here all over to determine where to position the small square which is



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the feature region and within the feature region it's going to create a keyframe and this will be the



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feature Center and the small Gosset is not the center.



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This is the attach point.



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This is the point on which you will attach other layers and other effects or whatever you want.



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You can move the attach point anywhere you want it will not affect how the track is working and you



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can move it later on also and you can give it some offset to attach other layers.



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So let's zoom out again.



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And we go to our man here.



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So we want to move our truck both to the region.



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We want to track but make sure that the area you want to track has a high contrast with the other objects



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around for example the man here has high contrast with the boat which is white and that the sea behind



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it and everything else.



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If you try to track it here you are going to have quite some problems because it will move around.



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There is no contest so let's put it over the guy which determines a good contrast.



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And you see there is a magnifier that will show you the pictures you are going to track exactly.



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So I will leave it there.



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I will drop by zoom in a press underneath and zoom in and not just know what's going to happen.



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Let's look at the season if you want to move this.



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Just click on one border and you can move it.



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Of course it cannot overlap over the feature region.



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That is the small square.



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You can just use the points and the German key I wanted to search here and make maybe this the feature



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region a bit smaller call or call here and move it.



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So we wanted to look in this area to determine the feature region and then give us a feature center



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and we will have our attach point in the middle of the feature center and we can attach our laughs.



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Now how do I start tracking.



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Let's go back to 100 percent and zoom a bit more.



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Now when I started tracking I want this blackpoint to be always on the men behind.



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If it goes away it goes very far.



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It means the tracking has been corrupted.



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I need to redo it or to just start tracking all I have to do is to come to analyze for what I can also



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backward.



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If I come backwards in time and in this way but of course it's better to start analyzing or forward.



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I would click and it will start analyzing and creating our interest points.



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And that is what's going to happen when it gets to that point the boat is gone.



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The man is gone.



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But this point is lost.



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It cannot cross to this side.



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So there's quite some work to do to eliminate this.



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You know how it got lost.



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So why are we here.



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Let's go to the layer and open the layer.



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You notice we have motion tracker.



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That's a group of properties all together.



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It's not under effect.



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But I will open up a bit or a trail down and I have a tracker tracker is my track point.



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You're not just eyeballing one track point here and then within that track don't have the feature center



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the confidence and attach point.



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The confidence is how much confidence aftereffects has in tracking this point.



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Now also I have a ton of keyframes Let's make this bit smaller.



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Yes I have a ton of keyframes that are some of them I'll talk to these.



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Let's go back to the timeline to go back where the man was.



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It's here.



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This is where it started losing tracks.



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Let's zoom in even more than that and roll the mouse.



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You notice all these keyframes are totally useless.



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Let's go back a bit.



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So this is OK.



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This is ok I guess over here if we zoom in I will find out the keyframe that is totally you know getting



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lost or over here for example fat I would select all these keyframes till the end and just delete them



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so when I delete them what's happening exactly there is nothing happening.



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Look not is that some keyframes have been jumping.



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Come on.



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Just them go backward a bit.



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Call and then I can come and I just this keyframe here.



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And the other one if I like to that's good.



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Let's go to the last keyframe come back OK.



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So that's the last keyframe maybe the one before the press.



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J.



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No it's OK.



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We go to the last one and then I move in time and then the man now is showing.



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I will hold the track point.



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Click on it and just move it above the new area that I want.



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Actually it's not the new area but the continuation not as there is a motion Parthiv.



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Then I would zoom out come back here and say track again.



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So now it's continue tracking.



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I pressed bespatter stop and back and nothing is what's going to happen at the end of the movie.



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Now if I continue analyzing you know the guy is going but it's still giving me so many keyframes that



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are totally useless.



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I will go back.



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So from here the guys disappear OK fine.



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I will come to my timeline here.



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Let's zoom out a bit and I'll take all this keyframes.



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I don't need them.



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I would just delete them and maybe the last one or so I will delete.



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No that's OK.



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Now I want the point to come out but I cannot drugget you know if hand-luggage it doesn't come out at



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all.



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So I'll move a bit in time let's say over here and instead of you know moving it I'm going to use the



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feature center here to move it or press you to see only the keyframes and have the features that I can



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just move it in value and not something interesting when you move the feature center the attach point



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is also moving.



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OK and that makes a lot of sense.



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But if you move the attach point the fissure center doesn't move.



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And also it makes a lot of sense.



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You might want to attach it you know over here so you remove the attach point over here and the featured



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center will not be moving.



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I will undo that and I will move it to the outside.



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So now I have quite a motion here it comes it comes back fine let's zoom out and see exactly what we



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have achieved.



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If you play now you see that let's zoom out and go to the beginning of the player.



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You'll notice that very nicely the track board is going over the man that is moving.



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And then it jumps over here.



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Cool.



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And then it comes out.



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That's very beautiful.



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Now what are we going to do with all these keyframes And how are we going to use them.



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This is what we will be covering in the next lecture and attaching some text or some other composition



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or whatever you want to.



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The attach point as you then.