All language subtitles for 06 Tracking And Merging

Hello there and welcome back

Now that we have a project setup gonna start combining or two pieces of footage

Not a combine different elements in nuke

You need to use the merge node

You can create that by typing

Merge your tablet or simply

Hedingham

This is the most commonly used now the name and you'll be using the shortcut

All the time what's your name in here and you'll see we have three inputs

Into our marriage now

We have are a pipe

Abbey pipe

And I'm asked to go over all of these so how exactly do we use immersion well

What we do is we take our being put

And will connect that to our first piece of footage

Let's just get this nice and mine here in what hit ones we can look at that with a viewer

Work

And now won't connect to a pipe

Your second piece of footage

Are you just noticed change we've actually overlaid

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I read to hear over or read one

Turning this off and on

What exactly is happening here

If you go over to the operation lab

You can see exactly what Matthew Lucas doing

Default is over and over means I want what is in pipe a put over

Might be in this case

Footage to

Over orphanage one

If you select the strap down you can see all the different ways that you can combine put it together

Drop this classroom go through the most commonly used measure operations in the ones you'll be using in your day-to-day work

I would honestly say there's only about 4 of these I use each and every day the rest of them

A little more specialised in some of them I'm not sure I've ever used

So over is the right operation for this we have a over b

You're the things you keep note of currently is this mix slider here

Nexus basically I deserve saying how much of input a do I want to keep

Over in Whitby

In this case we want all of it

So we'll leave that at 1

And that brings us to our next step in the shop because right now we don't want to see all

Woolwich to

Really want to see this actor

Drop into

Original plate year

So how do we do that

There are many different ways to cut out footage in

When we were going to look at by using this method by peer

Servicemaster pipe needs an input

Download make a runny nose by hidden tab typing and Road

Is a very commonly used note and so you can also quickly make it but the shortcut

Alright so we have the selected here let's grab our mask input

A bird into a rodent

Your notice immediately or finish your two disappears we can turn this off and on

And there's no change

Because right now

We look at a road or no

There's nothing in it

We haven't told that what part

A wife Village O2 we want to

Let's go back to a road I'm not here

Over here we have a couple different shapes we can use we can just use the ellipse here really quickly hi that's like that

Drag

And wrap they're alright

See the bounding box not it's only calculating

In this area

Let's go back to emergency what happened

Alright

That's a start it's not exactly what we want

You can just grab all the points nearby thing control a

Skip the silver social more accurate

Alright

Play

And

The shop is done

So what exactly is happening here because

If we look at a row download

It looks like

Something that you need to keep in mind in new

Is that

Right now we're just seen the red green and blue channels

And that's not what determines masking in new

At your alpha channel

You can see your alpha channel by hitting a on your keyboard

And it'll pop up and you actually see you saying hey

This is the map where I want my footage O2 to be seen

This lines up perfectly

Don't alpha I need to get back to RGB

Find a perfectly with our cut out here

Now a lot of the time when you're working you don't want to see the shape overlays

What is a couple ways you could highlight one as you can just close the rota over here

And it'll go away but sometimes

You want to be able to quickly turning off and on you don't want to have to go back down into the roller known and then reopen it again

Newcastle quick shortcut if you click in your viewer in her q

Q stand for

Overlay off

I don't know why it's queue

What it is and what accept it and move forward

And you can tell her tablet you when overlay is on or off

So now we have a mask in here

What are overlays relief

Alright so this is step one we have a mask on her footage

Step 2 is we need to get it to track

What's we're going to that

We already determined earlier

Footage to

Is pretty much perfectly stable so we don't need to stabilise this any further

What is one on the other hand

Moves

Let's get started on a track you will start at frame 100

Right

I'm going to create

Tracker node

Luke Strachan out is a basic 2D point tracker

What that means

Is your feet at a position

And it'll try to log on to their position in X and Y

Throughout the shop

What's the note setting Siri we have

Etracker tablet is going to host all of the tracking points that we create

We can add or delete from here

Also going to control our exports

What's add a tracker real quick

And track

Full screen here alright

Where is it well

We look up in our top left here we can see her over later still off so it's turns on

Alright

There are tracker has appeared in it actually

Ride around

Where I want it to be

So this is creating a couple of different boxes in r viewer

So the inner box

Is basically saying hey

This is the exact pattern that I want to track

Wow this out of Boxer saying look for this pattern

Within this area

If something is moving very quickly

In your search box is very tiny

If not going to track correctly so it's very important to note the difference between these two

Nobody here we have a stabilised view

Where we can see how stick your track is

This workshop I'm going to say this time and time again but the best way to check your tracks is by

Stable synonym

So actually start tracking the shop

We have our tracker controls over here

What's go ahead and track backwards to the start

Alright is your tracker

Why are tracker has stopped

Presume it's lost the point that I was trying to keep a hold of

You can see every scrap yards doing a pretty good job sticking right there

You can look at her stabilise you and notices that really need bumping apple which is always a good sign we can make the stabilised by

To see if there's really any micro cheetahs hidden within our track

So this is looking pretty good here

And I don't really need to track

Beyond this point works start because if you think about it

Actor is just down here

We really don't need

To go any further into the beginning

Let's go back to frame 100 you can see here

You will text on a bar means that there's a keyframe

Ford tractor has key find information on all of these frames that it's tracked

You can also see these keyframes in The Dope sheet

You can not only time offset footage in the dark sweet but it's main purpose is a just in keyframes and you can see all

Keyframes we've created here

Go back to a node graph

Google bad tour track let's go out at Selecta

Here

The other tracks like that

What's track forwards

Alright

We can just scrub the here to see how accurate this is

I'm largely looking at our little stabilised box there received jumping around but it looks like it's sticking

If you want to see it in the viewer as well we can also stabilise this here

We can't click this button I just send her viewer

Chelsea

4c hair

Call Steve offices

No not to sing a little bit of rotation on the right side the stabilise never lies and that's not

Tell me a dumb rhyme or a very true statement

Stabilising your village or a lot of potential problems that you can't see when it's falling in Motion

As you can see this tree is dripping so looks like we have a little bit of parallax we'll see if that comes into play later

But for now I'm just trying to get it Bassline track

And this is more than good enough

Export or track

Down to this export tab

And there are a different options we can choose from

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Nearest corner pens which will get to next week

And then transforms

So what does it do is it would make a transform node and it will apply or tracking data to it

Is a transform now let's look at it really quick

Let's just hit this button to clear

Oliver node properties

Ok cover here

And what time and type

The shortcut for transform is also t

From now on

So Transformers another very commonly used now we can take a look at it quick

It has this little widget here which allows us to move our footage

All of these are pretty self-explanatory you can rotate

You can scale

You can skew and this is all based around that in Cork

If you want to move the Anchor point

You can control

Dragon around and now everything will skew scale rotate

Based on that anchor point

Want to transform node as I was going to delete that

Go back to a tracker double click to open the properties

And we all go to transform

Letchworth

Alright now you have a transform match move now

What is the difference between

Matchmove

And match with baked you can probably guess what the difference between stabiliser and match with bar

Masmovil match the motionless stabilized will remove the motion

Batman vs match movie

You can see that when we created this is a little green arrow going from the tracker into the match move

What does making a match move expression likes this transform to this tracker

So any further changes we make if we need to modify the track for any reason

Automatically property

It also makes very much smaller save file

Because if you were to hit baked

It would be like in all of these keyframes that we've made here typically the impact on performance

Pretty light

So all depends on whether or not you want that automatically

In this case we do so I'm just gonna leave that there for now we have a track setup

So let's closer

This and setup a good frame

Right here

Alright

Go to the last frame here

Sticker mixdown

I use that trains from now that we talked about to align our two plates is a shot in the same location

So should be pretty easy to line them up

You can use the viewer widget

Where you can also go into the text box over here and scroll with the middle Mouse wheel for fine tuned adjust

Make sure that is a really lining up close they are mainly looking at the mountains

Right that seems pretty good

Alright so we have a good

Matched from here

Back and forth screen that

Something you may have noticed

Is now that we've made that transform

Bounding box is just a little bit bigger

Calculating all of this extra data

And we don't want you to do any work

It doesn't have to

How to get rid of this we can go to our beatbox settings

A bounding box is the total amount of pixels that nuke is calculating

And right now were saying hey calculate the combined

Bounding box of a and b

You can also

Have new only calculate where A and B intersect or you can only calculate a

We're only b

This case for indigo with b

Annabelle in box shrinks down again to a normal size

In this case it's really not going to speed up that much but it's good to have these practises in place for when you

Have your caps now that we have that lined up what's taking mix back up

Alright there's a piece of footage it's looking like we have to do a little colour correction but we'll cross that bridge later

What Stoke-on-Trent for match move

And drop it after a transformer

What in the world just happened

That's what I weigh down or no tree and investigate

So I transform here this looks like a bat where we had it

What does matchroom has just launched it up and that's not what we want

We want the reference frame

2 by 178 in my reference frame I mean the frame where no movement

Has taken place

So we can adjust that by going into the tractor now

Transform tab

Set to current frame

You see the suddenly snap back down that's just cleared this so it's a little cleaner

Double check here

So on this frame now we're not moving

Any pixels

Go back to emerge

That's much better

War hide are overlays here using q

No one is an animation you're actually have to hit you twice

What time will Heidi animation Curve

At the second time will hide all widgets

So go ahead and hit

Play here

All right so this is interesting

We can see our track in half way through

What are roller isn't stick

Well

What can we do about this

You're very welcome

Take the snatch movie

Happier

And paste it after this Roald Dahl

And then suddenly

What's attract accent are Rolo also stick

But now new

Is applying the exact same movement

Twice

An intelligent way that we can build a note 3

We never want you to work any harder than it has to

Disconnector mask by Peter

Now I can just see the tracking in there is no mask in it

I'm not sucking another way at masking footage in nuke

What go away

Let's move over for the job

And you can actually mask footage

Using a merge now just there to create that

As it main operation

I don't want or for the chair to be in the a pipe

And that's because of a very fundamental organisational concepts

And that is the pipe must always flow

Down

Let me tell you why we look at a marriage one here

When you disable emerge note

It's going to review

Pipe

And all scripts need to be built this way

It becomes very difficult to troubleshoot stress

Where the be pipe in a pipe or constantly flip-flopping back and forth

Analyse YouTube very quickly be able to tell what is going on in your new career

So I cannot stress having the pipe by your main downward flow is incredibly important

Speak and switch this year

We could

And then cat

Or

When you have the snow selected

Shift x

Will swap b and b

Now we can delete this

New

Over here

What's combine or replay

What happened here

Well this is a good example of how alpha affects an image

When you're merging elements together

Because if you look at this Alpha

It's saying that this is actual image

And here

Are actual RGB value of that energy is black

I just merged this over

It had a black circle

That's not what we want in this case we don't want to use over

What we want to use is a major operation

Call

Mask

And what mask does is it takes the alpha input

In a

It says hey

Whatever is in type B

I only want to see that where I have Alpha

Is perfectly lines up

Just hiding these other property Windows here

Is perfectly lined up with a row shape

Mask is another operation than I'm constantly using

The sister operation to mask is Spencer

And it's the exact opposite it's saying hey

Where I have alpha in input

I want you to erase the image

For change the Spectre mask

Looking at our bounding box again we could make this more efficient

So since we're only using where a

Overlaps b

We can actually change this to intersect and calculate even faster

Better merger

Alright and now we can see your mask is tracking

And we were able to get that for free

And that's because of the Order of our nodes

We have afforded been reading

Reply no mask

Transformer natalyna footage

And then were tracking

Because of this blow-up data were able to get our footage in The Mask to track all with the same train

Or matchmove

Next will I get the just in the Colour and the edges of a mask