Original subtitles

Hello there and welcome back

In this video we're going to do a brief overview of 3D tracking in nuke

So let's gets

So we can bring in our footage first I have this 3D track for this version 24s here

Because it's looking for aces

What's the headset for Project

This is

5

This is HD

HD

Change your colour management ocio

I have an environment variable right now that's setting my OCI ok but trust me it is 8

He says 1.1 here and will

Get together

This is using the input

Sony

Where is

The input Sony sr1 Sky

Pretty nice I'm actually using a

DJI Mavic Pro

To hear but they don't have that look up her

I'm using this as a placeholder cos I think it were

Pretty

What's go ahead and get started first man to make a camera tracker no

Subtitled by -♪ online-courses.club ♪- We compress knowledge for you! https://t.me/joinchat/ailxpXoW3JVjYzQ1

Make sure you were in nuke x and when you're doing this

Tracker does not work in standard

So what we need to do first is feed a camera tracker a bit of information

You always need to have the sensor size of a camera that shot your

For the Mavic Pro 2 it's 13.2 and

.8 mm

And then is going to ask a couple other question

Is it going to say what kind of camera

Is there

Is it on a tripod in it's just rotate in so there's a little bit of parallax

Is it going with a really anywhere that's what a free camera is

Is it on a dolly that a linear motion

Or is it a TUPE

5D surface that were try

You can actually get corner pin

Tracks

With 3 trackers

But I don't recommend doing it unless you have to because it's way more time consuming

The normal to

Track

What kind of motion has it asking is there a lens distortion on

And in this case there is an unknown lens

We don't have a lens grid

For this I wanted to calculate what lens distortion is going on in the shop based on

Track

And Nexus asking us

Focal

We know this is approximately and 11 mm depending on your confidence

You can do noun verses

I typically to approximate just a little room to wiggle around with

And you can also do very

This is when the lines is zooming you choose one of these two options

So in the shot if we play it we can take a look at this

It's a pretty 3D trackable shot

It's moving

Forward it's a free camera this is a drone flying through the air

And there's a lot of parallax in this and that makes it a good

Candida

Track in

Next 30 tracker can handle easy to set my complex 30 moves but it's really not the best

Nothing more complicated

I recommend using a

3D tracking specific software like Centre

I have tracker 3D equaliser but Nick should be more than getting

Indeed

Alright so we have this ready to go

What's check out or other settings

All these are red

We can specify what range we want a track we can use mask if we want to

Skewer

Certain areas that are moving in our frame

For example if there is a bird flying across here we could make a mess around and say don't track your bird be

If anything is moving In Your Scene

It's not going to track correctly with a 3D track everything needs to be static that work

So the next step in this is we need to get some

Points killing

It shouldn't be too big of a deal here so let's go ahead and get our other tracks setup it's not in the auto trade

Tablet actually in the settings tab

What are the initial setup

And what we can do here is hit preview features

And this is going to show us where

It's going to try to track each one of these represent

Appoint track is going to try

Automatically

And based on parameters that we give it they will stop tracking or turn off at a given point

Based on hell wobbly that

And so the first thing I typically do

Is I change the number of features to 500sl I want a lot of features

Track because that's going to ensure more consistent results

And then we have this detection threshold

And this is going to help us just kind of ISA

Two areas

Hiya can't

Alarm points in our sky right here

And those aren't looking to good Sophie bring that

Those points World go away

Alright

Awesome

And feature separation is just how close can you get together

If we change it to 6:40 there stacking on top of each other

A bit

12th August in Sherwood green spread out

A little bit more

Refine feature locations or try to move them to my contacts

Typically that's a good thing so I always turn that on

And then when it comes to the actual tracking process the features has to do with me

Tried a try

Our auto tracks will

Turn off based on the spread

If the track

Is not longer than 3 frames it's not go

Count what

Is doing

The track threshold here is our overall area rating

If the track gets too wobbly

It's going to turn it off and this is just a tool

For Huawei

I can get points 7 is a good start

I don't really change these

On my

Version of a track

And then he's next to you have to do with house move your track should be

And House movie chilling

Because if you have a very complicated scene

You can make sure the track

He is at 0 who can just panties up a little bit because this is a very smooth

Seen another

Albatross

Banana solving we have this camera motion this is a duplicate of what we

Here

And it will up

Accordingly to change this to rotation on

Dates here

Are we going to keep the sack

Free camera

And then for the solving section I don't really

Ever touched

Go ahead and start tracking the sky

But one thing I want to make sure I'm doing first as I feel like the

Ali Abdullah

Super well let's take a look at how we can mask with the camera track

In so what I can do here

Make a right there

And what I can do is just draw

Here roughly

That's not doing anything currently we want to change to a mask Alpha

And now anything that's within the shape it's not going to

Track

Just realised that means we have to roughly track as in actually looks like this is me

Freddie Stead

What does keep that the whole time that was really lucky

That we did

The track this for distant background

We can do is hit track and it's going to automatically track these 500

Like I said earlier this is a really good

How to 3D track because of the amount of parallel

In the shot everything in it is static

And that's what you are

If this was a handheld camera of someone running around film

Car check

Potentially be very difficult to get a track with Luke and maybe even

Just keep that in mind

Nuke is good

Easy to medium

All rates are all other points are all said and done right now

And we can see one museum in this is actually showing us how long these tracks go for and you can see it up half

They're going down

It looks like these are pretty consistent which is always good to see

Go ahead and actually solve this we have a solve button right here

And let's see how

Because this error right here is going to tell

How off our track is based on

The consistency of the

The parallax is how I can give us this year

And will be able to see it per frame as well on the right side

Looking for something that is below

Anything but no-one is typically pretty good and what would you know

Were just below one here let me know if you're pretty good track on our hands

To take a look

And just kind of scrub through the sea can see a few different colours just popped up on our screen

Read means this is a

Bad track it does

Think that

We haven't here is any good

Yellow is just kind of discarded and green means that contribute into overall

Saw

Alright

Sweet

So if you're looking through this

And I feel like our points are looking pretty good

As a whole we can see a couple

That are just sliding

Frizzy hair

Crab through this

Always get shot

To see if

Any that don't look

Sticking

Because that will happen

From time to time

On

The sky here

Is the best steak in the whole time

It doesn't look like this one's working too well so you can just delete

Poinsettia bad you can just like them in the lead on

Projected ones we don't need

If we had anything that was slide in a car

Screen

Indus go ahead and delete them

Alright and once you've cleaned

Any obvious issues what you want to do is hits solve again this probably won't really do much because I might delete it

And

It is 1.4

500 bolognese would do it just to see what happens

What does finished calculating

There

Are you still really changed much at all

So what we want to do next to start weeding out the area

That we have in our track

You can look through here there's a couple of

Subtitled by -♪ online-courses.club ♪- We compress knowledge for you! https://t.me/joinchat/ailxpXoW3JVjYzQ1

Thresholds that we can change

Some information in here this is the max area of any given tracker

On a frame

And say what we can do as we can start you control

What does maxcera

Restart lowering them

We can see a lot of points start turning

And so we can actually update our souls

To get rid of

Points that are over our allotted threshold cos you're probably contributing to a track not being a salad as it

And we can just lower

There's a bit of this

2

This may be

3.5

You want to get rid of a good amount of trackers but you don't want to get rid

So many that

You don't really have any

To inform

Your track

So what we can do is hit delete rejected right here

We can see that our solve our is now at 0.75

And that's pretty good

Anything a .5 or below is really really really good

Anything that's below 1 is Sam

So I think this is working

Pretty well

And

Kemet records also calculated the Leinster store

We check on the store input we can see this is how it thanks the lens is being distorted

What is the understory

Table to extract that and use it a little bit later

So now that we have our

Track

Pretty good this is a salad error percentage

Let's go ahead and start sitting up or seeing

We make a person 3D space we have over points here Luke does it

The gas

How they should be laid out but this isn't

Let's go ahead and start adjusting that

What you want to do Azuma

And find a point that six pretty well let's look at this one the area is very low on this listing

Salad

You can right click on it and you can do quite a few things

And so what I want to do first as I want

To set the stew or

You need a new scene layout before you

Anything else and now it's nap that position

To The Origin in 3D space

Next you want to start defining your x y and z axis in 3D space

Subscribe this guy here

What's the what's this area

The area is very very well

What's great about him as well

And also pretty well and with these two points selected

We can set

This

Qrz

Ground

And now and we'll look

This has flattened out or points significantly we look at this from our

Right side

We can see how

Louder this

And that's work

Funny well that should be salad for our lady

We could do it

X and Y as well but I will show you a bit of a different technique to do that

Now that's a bar scene sale in a grab these two points

And set that up because if you look at this right now in

3D viewer

It's saying that this in total is about 10 m long right now and that's not

Correct

For gravel this point grab this

And what does approximate we can add scale distance and now in Arsene tab this is how you control the layout

We can

Estimate how many m is Maple 660 or sell

I don't know the exact distance from just trying to get this to be a little bit more

Realistic soccer camera tracker here

Zoom we can see the scale or seen

Significantly now just this chunk is 100 m

And this is certainly

Much much closer than

We had

Alright

Sweet so let's start looking into how we can actually lay our scene out in general

So we have a little output option here

And the only one I ever use honestly

Is seen

When you create a SIM plan

It will treat a few now

AutoTrader scanline render in a casino

And most importantly is this

It will make a lens distortion node with what its perceived undistort is

I'll make a point Cloud for us to use

And it'll make a cam

And this is our moving 3dk

Alright sweetie we have Oliver points in here

May look like a little that's because we don't have any smooth motion blur on them

Changed

Eat

Centre

How to make a little smaller if we want to

Girl

Solicitors just r3d

Overlaid

Ntfc

We need to keep checking our layout because we just don't want to assume that it's working correctly

Let's go ahead and 1st ad

Car

40 ground plane

This is the first step I always do

What's change this orientation

White

And uncheck image aspect

How much does scalis

It's really

Indirect checkerboard on here as well

Let's see what we have

Look at the 3D scene

It's even skills up more

Not that kind of girl

Infinity

All right so it looks like our layer is it

White karate everyone are

Horizon mind to be right around here to match

They are Rolling Hills so it doesn't need to be perfect but I want to be a bit more

Close

So we can go onto the scene tab and

Hear these adjustments will move around and rotator see

Based on the Aura

So first time going

Rotate person x

Just a scooter up a little bit

And actually

Pretty well not sure I need to do anything beyond

Now we have a horizon line

Set up correctly

Skewed

Where does sinus lower than the other but that feels accurate

Again doesn't need to be perfect

Needs to be somewhere close

And when we updated our rotation there that are propagated to a camera and or point cloud

Expression light to

Answer now or seem is all set up and ready to go

So what we can start doing now

Is say we wanted to add

Cube right here we can go into our camera track

We can't select this

We can create a SIM

And what's pipes that into a scene

And now we have a few on

Restart playing

Little track in according to all of our

Disconnect a point cloud just so this is a little bit faster

But we can see that as removing throughout our scene

Are a little sphere here is sticking

Very very well

Even when it starts getting covered it's moving smooth and consistent

Because this is a 3

You'll never be able to get this kind of consistency

With a point

One step ahead

Alright

That's how you create geometry and layout your CV

So what happens if you

Doesn't really give you a good carer

0.75

Is pretty

What if that little spot that we have over here is not tracking

Well what you want to do when you have bad errors is a couple

FIFA

Is make a tracker

And what you can do here

Is track

What do you write here say this is where we want to add some CG

You can get

That we feel good about

Make sure

Does a stick in the whole time

I just

It's on

Minutes changes

Track a little bit more nicely

Collins Key

Cracking in

Looks like a stick

Pretty well

You want to make sure that these feature

Are very very sticky

Because if these are off is going to throw off your entire tree

Because one is going to do is prioritise making

As sticky as pass

Is then on what you can do here

Going to copy and paste this sometimes camera trackers

Out

And so I just have backups location

In the user tracks but symporter track

Grabbed tracker one

And now it has this

We can see it sticking there and we can hit updates off to not reset all the voice settings that we've had

Ennis going

Keyboard current settings into account by try to incorporate this year

Alright and now we have a point on a user track your didn't really change her hair reading because they're reading was pretty good

But we have that in here now

And if your track is not sticking

Learning anywhere from 10 to 20 beautiful really help you

The other thing you can do

Is really up

The amount

Of future locations that you have

But if you're increasing the amount of autotrack features you need to make sure that they're good features you can put the

2000

Is it your order features or slide

That's no good you can also play with B-MAX error threshold

And those are generally the best way to troubleshoot

New tracks in

And now we have a scene night and set up

3D space

Go ahead and make a box here

Boxes are great way to double check

Prospect

Alright

Cuban new

Make a cube connect the Sky Friday the origin

And what scooter are .5 mm pivot down to the bottom side negative

5

And

Find a good

Point

Space to put this maybe

Here

Let's just make an access so I know

3D position

Indulge just

Over a little bit

Eva box we can really scale this up song

I move the pivot so I can allow us to school

Or do you like

10

And the boxes a good way to check your perspective because as we scale this boxer what we

Battersea

Is the top of it

Perfectly Fry

Ella Rose

So we scale this app

Yeah we go it's nice and flat a horizon line and then we start going above it

It starts getting that receding angle and that's why

We're after

So we can go ahead do you want we need to with first let's just play it

See what it's like in mic

The default setup from symplast how's your undistort going into the background which I hate you really should merge this

Over for the sake of the Singapore

It doesn't really matter to be

Alright and now we have our box in 3D space you may need a check with multiple points because again this isn't

Clean

The should be sticking pretty well

As long as this is consistent

That

Generated

And as always with three tracks you want to check them with stabilisers

To make sure they stick I'm not going to do that here because this is just a broad overview

If this the didn't stay

What we wouldn't want to do

Is we would want to make a user track in each of these four corners

Make sure those are nice and sticky

And then when we're at setting arbox into our 3D scene make sure that

Is connected to that user track and then that would be perfectly still

Assuming that are point

So here we have her ominous barks that were moving towards

Who is

Completed

3D

And this is all said and done

What you can do to export this to another program

Is you can do this with nuke non-commercial unfortunately

But you can connect

Everything you want in your scene out of me

Point cloud here indoor camera

You can just make a right go

Change the time

To unlearn

Handwrite the Sky out and put it into the program of your cheese

You can't go straight

The camera knows with the right go it's so weird

Feature

Walk on

You have to go through AC node at the very least but this will export your camera

With no

And that's about it that's what I have for 3D tracking in nuke it's good for easy to medium shot

Keep them in my

And there should be more than you need to get up and running with three

Thank you very much for listening and I'll catch you in the