سيارات 1

Hi there and I'm happy to see you on

Unreal Engine automotive masterclass

brought to you by post-processed and

double jump academy. In this master

class we will be covering whole process

of preparing car for rigging and

rendering the final cinematics. This is

also a disclaimer for me. Some things

which I'm making may seem to be done

effortless but I'm having a huge

experience of doing this like for

example camera animations and camera

shots. If you are not successful in

creating those shots from the first try,

don't get disappointed and just continue

doing what you're learning because this

one is only comes with experience and

unfortunately you can't speedrun your

life and your experience. I hope you

will enjoy this masterass and I'm

wishing you good luck and success in

automotive industry. Okay, let's start

with the first module uh where we will

be preparing our data and our models to

Unreal Engine. First we will start with

Blender and here we will be importing

the models, splitting it the way it

suits for the rig and so on. Then

exporting the whole model. For the

models I will be using some free models

which I found on Sketch Fab. The link is

in description. I have already

downloaded uh these models here. So the

first one is this Porsche 911

uh by Kevin.

So you will be able to download that.

The second one is another Porsche but

the GT3 version also by the same guy. He

is doing the great models. Those are

probably some game models. They are not

highly detailed in the interiors but

still they're looking good enough for uh

external view because we will be

focusing mostly on the animations and

the interiors. the quality of interior

and how you can show it or present

mostly depends on the quality of the

model. So this is how it looks. This

this one and the second one it's it is

fine like in terms of quality but still

I would probably avoid showing the

interior of this model.

The third one would be the Polestar

one which is looking good. That's also

free model. It is really suiting the

environments which we are going to

create later in this master class which

will be the minimalistic environments

like the pole star does something like

that. So we will deep you know deep dive

into this and uh see how we can we can

create something similar using the

mega scans and the Unreal Engine

modeling tools. So this car is just the

perfect fit for this sort of

environments which we're going to

recreate. So I downloaded all three of

those models and uh we are going to

prepare them first and then input to

Unreal Engine and uh set up the Unreal

Engine project.

So let's start with the first one uh

with the Porsche 911. So we go file

import FBX

and we'll go with a Porsche source and

get the FBX file.

So the thing is that Unreal is actually

using centimeters instead of meters like

Blender. I think centimeters only used

in Maya or maybe also VR but most of the

3D packages are using meters in the

scaling units. So I noticed that if you

set up the scale unit unit scale to

0.01,

it will switch to centimeters. And

before uh in Unreal Engine 5.1, I really

had issues with the scaling when I get

models from Blender and I really needed

to set it up, but something was fixed in

Unreal in uh I think version 5.3 that

you don't need to do that anymore. So

you can keep it at one. And let's have a

look at our model. So I instantly can

see it's like huge. It's enormous. And

there are some problems even with the

display. So first of all, what we need

to do is to scale that down to the

proper value. So if I try to measure for

example the length of the car, it's 4

kilometers in the size which is

uh not the proper size indefinitely. Uh

you should keep all selected and when

you're working in a view port hit S

button on keyboard and type 0.01

and that should be probably much better.

The model is oriented oriented the wrong

way but we'll fix it later. So this is

already better. Let's measure that again

and see if that works. Uh nope. It is

still 10 times bigger. It's like super

huge. So yeah, it's 45 m. Uh so let's

scale it down once more. So press S on

the keyboard and t type 0.1.

Now it should be proper size. Let's see.

The wheelbase is 2.4

m which is which is realistic and is

close to real size of the Porsche 911.

Yeah. 4.6 meters the whole length of the

car. So the thing is how Unreal Engine

works with axis and how the rig is

actually done. The rig done the way that

the car should always

face be facing X forward because the rig

which we'll be going to using in Unreal

Engine is made this way that Z is always

up and X always forward. So let's switch

to front view

and now use rotate or press R and rotate

it on Yaxis

to put it Z up by holding control and

rotating it with your mouse. So right

now it is standing properly on the

ground. Let's see again.

Yes, it's straight forward. All looking

good. Now we need to face it X forward.

So let's switch to top view.

Hold control again and rotate it to X

forward. So here it's X forward and it

should be facing this way.

Uh half of the work is done. But

what we need to check also that we don't

have any wheel camber. So if you select

the wheel and uh let's hide everything

else with the shift H. You should see

that the wheel is

straight. it just like going straight

down and it's not

angled somehow or doesn't have camber

because you have the you will have the

camber in the rig and when you're

getting the data from the modeler or

from your client or from I don't know VR

expert from your colleague if you're

working in the automotive industry they

either should prepare the wheel

that it stays straight or they should

give you the values

for how much camber is that. Usually

it's like one degree or something. So it

is like one degree camber or maybe maybe

even less maybe like 0.8°

but yeah there are there are sometimes

some camber. You need to avoid the

camber. There should be no camber at

all. It always should be standing

straight because you can put the car

put the camera on the car inside Unreal

Engine. So you don't need to u do that

in Blender or something or in the car

model because most of the like VR red or

uh like automotive presentations they

are done with the static cars and with

the static car they want to wheel to be

with the camber. So because it has the

load on the car.

Okay. So here we have everything we need

and now we need to split the model the

way it will work with the rig. So the

rig logics is built like you don't need

any bones. You don't need that at all.

So you don't need to rig the car in uh

blender, prepare the bone bones, assign

weights or assign geometry to the bones.

You just need to export separate parts.

So

first we will take the wheels.

So here we have the front wheel and we

first exporting

the rotating part. The rotating part is

basically like everything here

and uh also the brake disc,

the inside and the tire. Let's try

again. I just picked too much. By

holding shift, you can click all of

those parts. Sometimes there are a lot.

Unfortunately, this model, as you can

see, is not grouped properly. Sometimes

you have the model grouped properly and

you just can select one group of the

wheel and so on. And we will select all

the parts of the wheel. can check if you

selected everything by pressing H on

your keyboard and see if it's like

hiding all the parts which you need.

Here I definitely didn't select all what

I need. Still not there. Also this one.

Okay. Almost there.

Okay. So good. This last part it's the

part of the brake caliper. So we are not

going to take that one. Uh the thing is

like with this which wheel you should

pick

you should always pick the passenger

wheel the right one because for the rig

you don't need all four wheels you just

need two of them because they will be

basically rotated and uh they will be

like mirrored in the rig. So you just

need uh on one side of the car. So

that's the passenger side or driver's

side if you are from UK. So you pick the

right wheel of the car.

Here we have it. It's all selected. All

proper.

Now we need to export that. Click file,

export

FBX.

Here I will create a new folder and

we'll name it Porsche

Unreal Engine.

Open this folder and this is going to be

front wheel.

In terms of settings which you need to

check, you always limit it to selected

objects because we don't want to export

the whole car. We want to split that

car. And this is just the way I used to

it. And I think it's just like better to

do it this way instead of exporting the

whole car mesh and then putting the

whole car mesh inside Unreal Engine and

you won't be able to define which parts

you are just putting in. And sometimes I

prefer to merge them. Sometimes I prefer

to import them not merged and this is

just like faster and better because it

takes much more time to split it in

Unreal Engine and prepare that for the

rig than just export these few things

from Blender. So you limit that to

selected objects. You select mesh and

other by holding shift button. Then in

transform select forward X and Z up.

Then we don't use the bake animation. We

don't have any animation. So don't use

that bake animation. Uncheck this box.

In armature

remove the dick from add leave bones.

And in geometry

smoothing groups, select face and keep

the apply modifiers because sometimes

there are modifiers in the cars and they

are mirroring the geometry and if you

don't apply modifiers they will not be

used and you will have half of your car

disappeared.

So this one is correct and we hit

export.

Okay, we have one wheel already

prepared. So, we can hide it. Now, let's

select everything. What is for the

caliper? With the calipers, it is a

little bit different. If the caliper is

not standing like with a straight angle

or if the caliper has something written

on it,

you can't export only one caliper. you

you would need the caliper from both

sides because it's a little bit

different how it works with a rotation.

If you rotate the wheel on 180°, it will

be like that. But if you rotate the

caliper on 180°, it will not be here. It

will be on the other side. So basically,

it will be there. And we don't want

that. We want it to sit at the same

spot. And also even if you use

multiplication by minus one for example

and it will mirror the geometry

you will not have the proper writing on

the caliper. So the calipers we would

need to export from both sides.

So I will export the caliper right now

with all its parts.

Okay. And now the writing. Okay, good.

And now I will do the same way uh when

you expert in the blender remembers the

settings. So I just need to name it

front

right or just FR which will be front

right caliper.

Okay, export.

Now I will hide it too because I don't

need it anymore. Let's go further and

see what is happening here. Let's export

the rear wheel.

Okay, the same way. Just select

everything. Don't miss any parts.

Be sure that you picked uh

all of the

wheel including the

brake disc and if you hide it. Okay, so

yeah, almost there. Just the writing.

Okay, cool.

Now I picked all the wheel. So I hit

file export again FBX and now I will

have it as

rare wheel.

Export FBX.

Nice. Now I can hide it. And let's get

the caliper.

Taking all of these parts again.

Okay. Let's check. Yep, everything is

selected. File, export, FBX. Now that

would be

rare, right? Caliper.

Export. Done. Now I can hide it. So I

don't need it anymore. I can hide the

entire wheel here.

Okay, cool.

and this one. Okay, great. Now I would

select all parts of left caliper. Okay,

export FBX

front left caliper

export also hide it. Same we are doing

with this

rare wheel. Oh, oops. This one should be

there.

Now is the question if I if I exported

this uh caliper holder. No, I did not.

So, I also hid that which is bad.

So, yeah, I would need to unhide

everything.

and

do that again for the front caliper.

Sometimes that happens. Not a big deal.

Okay.

Okay. Nice. Now it's better.

This is all of the parts. Yes. File

export

front left caliper.

We're going to replace it and hide.

Good.

Now, the rare one.

I'm hiding those parts because uh I will

be selecting everything afterwards and I

would need the body.

Okay.

And the writing here. Cool. File.

Export. FBX and that would be rare left

caliper

export

and now I can hide it. Okay, we are left

with the body but with the body there

also

some limitations which uh we need to

consider. Uh there's some also specific

way to export the

body and uh I prefer to split the glass

of the body because

sometimes in lumen there are problems

with emerged meshes and we would like to

avoid it. I will show you later how that

looks and what happens usually with the

glass if you are not splitting that.

Also I just prefer to you know separate

it. So I'll go with this

this glass the windshield

windows rear glass

and the glass which covers the back here

and I think this is it if I hide it.

Yeah this is fine that yeah that looks

fine. So yeah uh now we will be

exporting the glass separately. file

export FBX and that should be glass.

Now we can hide it. Select everything

else.

File export and that would be our body.

I'll name it 91

body.

Okay, cool. This one is done with the

body of this

uh 911. Now let's try doing the same but

with the

other Porsche. So let's file import that

FBX. I know that other Porsche has a

little bit of difference and there are

some troubles. I wanted to make that on

purpose and pick this car on purpose

because there are few minor issues that

you may encounter and I would just like

you know to show you what you can do in

terms of that because sometimes people

uh who are preparing the models are

merging stuff by materials.

Again, this one doesn't have any groups.

It's just like merged in weird way but

that doesn't matter. Uh you can do that

with any model basically. So here's the

thing.

The tires

are merged by material. You can see

there is just like rear and front tire.

They are the same mesh. And when you

import that into Unreal Engine, you will

have it also the same mesh, which is not

kind of comfortable. Same goes with the

rims. They're just all four rims and

they are here all the same just like

it's it's one mesh but but we need only

one front wheel. In that case I think

like the people who work with Blender

they know what to do. They just like you

press tab on your keyboard and you enter

the edit mode.

In the edit mode you can just select

only

this part. But like if you go into

wireframe

and just do like this and you will have

one rim. So we need to separate that.

This is our one rim which will be for

the front tire. Right?

And we will split that a little bit

later. First of all, let's again

position our car in the proper way. So

that should be facing X forward.

Rotate

and turn that

facing X forward. I'm just releasing the

control button too early. Yeah.

Okay.

Seems good. Maybe let's move it and make

it touch the ground. Now let's check the

sizing that all these

measurements are correct.

Yes, sort of it is right. Okay, good. Um

and also

before inputting don't forget to check

the normal orientation.

So if you go there

and check the face orientation here,

everything is fine. But sometimes you

may have it like different way. So when

it's red because Unreal doesn't

have by default, it doesn't have the

uh double-sided materials. And sometimes

even double-sided materials doesn't

help. It just looks bad and blacked and

really really strange.

Pass tracing doesn't care. It always

renders geometry just like it it is uh

double-sided.

But really don't forget to check the

face orientation because sometimes it

can be red here and if it's face like

not the prop the proper way then you'll

have it's you know completely trans

transparent and unreal and you will not

see you know if there is should be some

net or something it just will not be

present it will be completely

transparent and that may give you some

weird results

and let's go back to

our wheels. So, let's switch to edit

mode. We have our wheel there and you

just like right click, click separate

selection. Now you have separated rim

and if you click on that you have only

one. Now you need to do the same for the

tire mesh. Select the tire mesh. Click

tab.

Switch to wireframe mode.

Go and select only this tire.

And right click, separate

selection.

The next thing is just this small part

which is the brake caliper. And for some

reason the mount also the brakes are

looking terrible.

So we are not going to use them. I think

we will use the one because how the rig

made. You can use any other model uh

brake calipers and just you know get one

from this part and another from that

part. It doesn't matter. So you can you

can mix them whatever you want. So yeah,

we will not be using this break. It just

like looks really really bad. It's

terrible. Okay. Um let's split this one

too.

So again we will be selecting through

the wireframe because when you use the

wireframe mode it selects everything

behind.

Great.

So this one also separate selection

and boom we have one wheel which we can

export. So

let's check it. Yeah, all correct. All

all looks fine.

File export FBX. Now let's create the

new folder

for GT3

a real engine.

And that would be

wheel font.

Okay,

now let's do the same with the rear

wheel. Okay,

here we go. Wireframe mode.

Separate selection.

This one

separate selection.

This one.

This one is already separated. Okay,

cool.

See,

we hide it. Yes, correct.

again.

Wheel rare.

Export.

Okay. Now, let's see.

Yeah, there's some sort of suspension

probably. Yeah, it's merged with some

other different things because we

already have the suspension in the rig.

So, I believe we can just remove this

part or hide it. Let's do it a little

bit later after we hide all the wheels.

So, we don't have the wheels anymore.

Mhm. Okay. Now, we need to

Oh, there is also some sort of

suspension here and there. Nice.

I like when there are so so much details

in the car models.

Mhm. So let's switch to edit mode. And

as it has a lot of stuff, I don't want,

you know, to go through the whole

material list and do this checking out

how much of the materials we have for

each part. Probably this one is one. Uh

anyway, so here what I'm going to do is

just like check there what I can select,

what I should not select.

I think all of those paths may be safely

removed or hidden.

If I hit Ctrl L to select more of this

geo.

Okay, let's select everything.

Okay, wireframe mode. Oh my, that's

that's also taking a hood into

consideration. Okay, no, not a problem.

So I think this is the the worst case

scenario which you can have uh during

the car input or preparation.

Oh my

there's a lot of things which are linked

and which should not be linked to be

honest.

Okay I think we can hide this one.

Okay cool. Looks much better.

this one too. Let's hide it. Oh yeah,

that that actually works.

Okay, you can hide also in the edit

mode. So you don't need to, you know, go

through the whole of bunch of things

and separate it or delete it. So yeah,

you can preserve the the model itself

and not hide anything or delete

anything.

Okay.

Seems pretty fine.

Almost there.

Okay, cool. The front wheel is done.

Good. And don't worry that it's showing

in the edit mode. That's fine. Uh it

will be hidden during the export.

Okay. Let's see what is this. This is a

lot of stickers or something which

are just everywhere. But we don't care.

We can easily hide this.

Nice. This one is hidden

because we don't want to hide all parts.

We're just hiding this ones.

Okay.

Okay. Cool. And now we need to hide the

rear suspension

and rear caliper. My god, they are ugly.

Okay, wireframe.

See what we get.

Yeah, too much.

Ctrl L to expand the selection. Okay,

let's see.

Hide this one.

This one too, I think.

Yep.

Is this also

good? That that works.

And now the last part.

Okay.

Okay, that's it.

That is it.

Now we can

select this and export as the body file.

Export FBX. And that should be our body.

Oh no, wait, I forgot. We need to

uh export the glass separately first.

Okay.

This one, this one,

and the front one. I think there is also

the glass inside. I think it's

two-sided.

Yep. It's two-sided.

Okay.

Yep.

Hide. Oh, there is like three glasses or

what is happening?

Feels like it. There's another layer of

glass. Yes.

Okay,

good. Really, that's that's really good

model.

Despite the calipers are super ugly, but

yeah, that's really good.

Okay,

so we've got the glass. Now we can

export that separately. Expert Apx

gloss.

and hide this one and export the rest.

It's GT3 body.

Yep. Looking cool.

I'll keep it for now

and we can actually jump into Unreal

right now.

As we have already two cars prepared.

Let's do this. So with the project which

you are receiving,

this is the project which is in the

files which you get with the

masterclass.

It contains the rig and one of the

environments.

First time when you open it, you need to

enable few things. Let's close all of

those windows. You will be greeted with

this empty scene with this rig already

sitting in the scene. But before we

start doing anything, we need to enable

few features in a project which are

really needed for our pipeline. So you

go to settings and go to plugins. Here

you need to find modeling tools. You

need to enable both of them. Modeling

tools editor mode. Click yes. And static

mesh edit editor modeling mode. Click

yes. Also, you need to uh ren to add

render passes.

Move your render Q additional render

passes. We would need that later when we

will be rendering the files. Hit yes.

Uh also check that you have progress

media enabled because this one is also

going to be used for movie render queue

to render in progress for uh data

saving. Check that you have movie render

Q

enabled.

So this plug-in should be also enabled.

And before we restart, don't restart

yet. Go to project settings and make

sure that you have

the hardware rate tracing enabled.

Use hardware rate trace rate tracing

when available and support hardware rate

tracing and

also check that you have the path tracer

enabled. Past tracing is enabled.

And the last one is high quality

translucency reflections.

So enable this one too.

And after that you can restart the

project.

Okay. So when you have this prepared

and the project is set, we have all the

plugins which we need for our work. We

can import the models. Let's start with

our Porsche 911, the usual one. So in

the content, hit new folder

and create Porsche

911

the usual version.

Here

you can open the folder this one which

we have created Porsche Unreal Engine

and just drag and drop the body.

We do not want to create materials and

do not want to create instances or

anything else and we don't want to

import textures anyway. It will not find

textures because it's in different

folder.

Uh

in advanced uh settings, make sure that

you have combined meshes. We are not

going to use combined meshes for all of

the parts which were important. But here

this is just necessary because you'll

have only one mesh which is easier to

handle and easier to place in the rig.

So hit import all.

It will be significantly faster than

importing lots of meshes and and also

faster than importing skeletal mesh. And

with skeletal mesh you can sometimes

have some troubles. Unreal doesn't read

it doesn't see the bone. You addit leave

bones or something and just like it's

causing issues. This one is unnecessary

completely. That's that's not a problem.

And there's just like some names of the

materials were not correct or had

duplicates and it was just like renamed.

So don't worry about that. That is all

fine. So here we have our rig and just

drop the body into the scene and check

if it is correct sizing. If it's like

somewhat nearby the size of the rig, it

is correct. And also this is the front

part of the rig where you have the

steering controller. So yeah, this is

the front. And if you drag and drop your

car here and the front is matching, all

is good. You are fine to go. So

let's do other parts.

Let's go with this. Just

calipers, front wheels, rail wheels. All

of that will be

with a combined meshes. Don't forget it

should be there. Combined meshes. import

all. It will import all of the meshes.

And if we pick all of them, we will have

almost a proper car because we only have

the wheels from one side. The next thing

we need to import the glass.

With a glass, there is a different

trick. When you import the glass, you

should not use the combined meshes for

the glass. I will explain later why but

just for now remember so when you're

importing the glass and this is the

reason why I have split the glass from

the body mesh so just be sure that you

do not combine meshes when you're

importing the glass yes you will have

like multiple stuff but to be honest

it's not the problem because splitting

that in Unreal would be a little bit

tougher and uh will take some time But

our mesh is completely fine. So it's all

sits well. Everything is good. We have

for each window we have separate glass.

And there is a reason for that. When we

start shading, you will see what was the

purpose for this trick.

And for this module, it is everything

what I wanted to share. This is the

input. Next, we are going to adjust

model pivots, shade the car, and put it

on the rig. Okay, right now, let's step

into the model number two. It will be a

little bit more complex than the first

one. The data preparation is easy,

especially if you are working already in

Blender and familiar with Unreal a

little bit.

Uh in module two we will be talking

about adjusting model pivots in uh

modeling tools in Unreal Engine

automotive material pack description. We

will create our own material for

blinkers for example. Uh we will get

into some reflection fixes.

We will do some car rig adjustments.

basically rig our car

and we'll have a look at all the

functions that this rigging solution

provides. First we will start with the

adjusting model pivots. The thing is

that the rig works the way that wheel

has its pivot in very center of the

wheel. So if we try to rotate the wheel,

it will be rotating at the center point.

And this is why I said that you don't

want any camber in it. So if you have

any camber and when you try to rotate

the wheel, it will go like this and it

will look really strange and it doesn't

you know work well. So this is why you

should not have any camber on your

wheels when you're preparing the model

before importing into Unreal because in

Unreal changing the pivot of that wheel

will be

just really problematic. So before we

put our car on the rig, we first need to

prepare our wheels, calipers,

and basically this will be it. So for

now, let's delete the body and delete

all other things which I added to the

scene before.

Oops, this one. Yep. So we have two set

of wheels. As I said, we have the front

wheel, rear wheel, and the calipers. The

calipers are made this way on purpose.

Um, so it is really easy to do to change

the pivot in Unreal. Just in selection

mode, go into modeling.

Just remember as we just enabled the

modeling tools plugin,

those two they should be enabled. And if

you don't have them enabled, enable and

restart the engine because otherwise you

will not have this modeling tab here.

Here in form you should go and edit

pivot and just click center and accept.

This is this is this is it. And your

wheel is probably rotating

in the center of its axis and there are

no problems. It is always you know

straight. It it's working fine. No

problem here. Let's reset the rotation.

Now you need to do the same for the rear

wheel. So go here, edit pivot, and hit

center and accept. With a caliper, that

will be a little bit more complex

because the caliper

doesn't have this center, but it should

have the same pivot as the wheel itself.

So let's first

try to do that with a

with a caliper on the rear wheel. So

select the caliper, click edit pivot.

You see it's somewhere over there. What

I usually do, I just select the wheel

and copy and paste these values here for

X, X, Y and Z axis and hit accept. So if

you select both right now holding shift

the wheel and the caliper and rotating

that it will be fine. it will be working

together really really good. So yeah,

that works really well. The same we can

do with this front

uh caliper. Just edit pivot, select the

front wheel, copy and paste those values

and hit accept. So yeah, the caliper now

has the same pivot with the wheel as it

should with the caliper.

So now we need to do the same but with

the

with the wheel

on on the left side with the caliper on

the left side. So, we need first to

rotate this to 180°

and just basically go here,

go to unlit mode by holding here or by

clicking alt three and let's get into

inside and see what we have with in

terms of the caliper

and uh the brake.

disc. So, we can just like go inside and

see if it's matching.

Let's see here.

Yeah, that that is pretty fine. That

that works good. That works good. So, it

will sit properly in the wheel.

Yes. All fine. Now, do the same. Just

select the caliper. Go to modeling tools

form edit pivot and copy and paste

the location

of

all of these

axis into the pivot

of the caliper and hit accept.

So if we select it and we rotate it, it

looks all fine. That works really,

really well. Now, let's go further here

and do the same procedure with the rear

wheel. Again, 180 degrees rotation.

Go here and match the position of the

brake disc

with the

brake caliper.

See if it's fine.

Yeah, looks looks good to me. Looks good

to me.

Now we can do the same for the caliper.

Pick the caliper modeling mode again.

Edit pivot and copy and paste the

values.

Okay, accept.

So yeah, this is it. Uh now you can

actually

delete this from the scene. We don't

need to adjust position of

the body.

So we can just go straight to the rig.

And here's our rig uh pass and jumping

platform.

What we do usually

don't work with this rig. You should

always have something that you can, you

know, go back to. So, basically, click

Ctrl D to duplicate that one and name it

blueprint

rig

911.

Okay. And now let's get into this

blueprint.

When you open viewport, you see that it

is rigged with a model of the wheels.

You can use these wheels if you don't

have the proper ones. This one is

actually really nice high poly uh rims

with this uh tires and with the uh some

sort of brakes. Everything is like high

detailed. It's looking really really

good. You can keep this one if you don't

have the car with good wheel models.

This should be just fine. So usually

what you do, you have the body which you

put in the body. You have the wheels

which you put in the front wheels, rear

wheels, front calipers and so on. That

is like absolutely fine. But sometimes

as I mentioned in the beginning the

caliper may have some writing on it and

it will not work you know properly with

a rotation or multiplication by minus

one. So you would need to attach it

manually and I will show you how to do

that. So first let's put the body mesh.

Let's go to our Porsche 911. Select the

body and just simply use selected asset

and place it like this. You can drag and

drop. It doesn't matter. It can be done

different ways. Just like applying that

or drag and drop it.

Uh now let's add the wheels. Don't worry

about the position. We will fix it uh

just in a second. So, let's go with the

front wheel and apply to front wheel

mesh. See how well it was replaced. Now,

let's go with the rear wheel. Do the

same for the rear wheel mesh. Apply it

here. Looks good. And with the front

caliper, what what should be done? So,

if you take the front caliper and apply

it, bam, it works. It sits just there.

and there but the thing is that the

writing of the Porsche will be written

like other way around. So if I go to the

mesh and apply to the Porsche writing

some uh emissive material for example.

So we will see. So let's go for the lamp

or something.

Okay. Now see it is just

not written in the proper way.

And if you try to mirror that somehow

for example by minus one that that will

not give you like the proper result it

just it just doesn't work properly and

this is the problem of uh the wheels

which have some writing here. But we are

going to fix that. Don't worry in that

case if that happens. So to maintain the

proper writing on the mesh of the

caliper, you can go back to the rig

structure. You can reset this one, clear

the calipers.

And

here where you see calipers and those

are those components, you can select the

front right caliper.

Go to the mesh, select front right

caliper and drag and drop it here on the

front right.

Okay, good. Now let's go to the front

left.

We have also front left caliper here. So

what we do, we do the same thing. We put

it on the front left. And when you when

you add it, it it will be rotated not

the proper way because because the wheel

itself is just like rotated 180 degrees

to you know maintain the position of the

wheel and the writings which are

happening here. Um what you need to do

is to select this caliper and multiply

it by minus one on y axis and you have

the proper position. Let's also apply

some material on this one on the correct

one here on the left. Uh here we go.

Just to see see so this one now is

properly aligned. You can read the

writing on here. It is placed properly

and sits how it should be just the same

as the one on the front. Now we need to

do the same for the rear one. So pick

the rare uh right caliper first the

component here in the rig and go to the

meshes of the Porsche and select the

rear right caliper. Drag and drop and

put it here. Remember you need to keep

this one selected first otherwise it

will not be attaching properly and uh it

will drop somewhere below here or you'll

be just looking for it uh a lot of time

before you can drag and and connect it

to the component. Now let's go to the

caliper rear left.

Pick the rear left caliper. Assign it.

Now select the mesh which you just

brought here and multiplied by minus

one. All done, all working and all is

good. Uh remember this only happens if

you have the calipers with some writings

on it. If you don't have any writings,

it's just the caliper for the regular

car.

It's not a problem. It it will never

happen in that case. But I wanted to

pick the case which is just a little bit

more complex to show you what can happen

and what you might face and how to fix

it. So this is the easiest way how to

fix it. If you have the calipers with

writings also

you can separate the writings and then

just put the writings on top as the

separate geometry. But yeah doesn't

matter how you do that. But this is

really the quickest way. Now we need to

adjust the car body height and uh body

position. So let's see from the right

side. Let's select the right side and

just let's put the car. Let's go back to

the blueprint

at the very top of uh our structure and

adjust the body height. So because the

pivot of the body is somewhere in the

bottom, it sits higher than it should.

The pivot should be in the center. But

to be honest, I don't care about that. I

don't want to change the pivots because

we also have the glass which has the

separate pivots. Sometimes you can

separate this border which will also

have the separate pivot. So yeah, it's

just gives extra complexity if you're

changing the pivots for multiple

objects. It's just much much easier to

use the body height parameter.

So let's just go and put minus 30 cm

and adjust the position of the wheel. So

front axle offset it is deter it it

determines how far the axle offset

goes to the front. So if we lower this

value it will go to the center. I think

122 is fine value and for the back wheel

122 is also the fine value. Yeah, seems

so. Now what you can notice in

perspective that see is just two outside

it's not also the problem. Front axle

offset.

Now we need to pick the front wheel side

offset which should be something

probably 80.

Yeah, looks fine. And the rare one.

Let's try also 80.

Maybe even 79.

So, yeah, that that looks good. I think

that looks fine for me. It's pretty much

enough.

Uh, as you noticed, that suspension is

just like a little bit off, I would say,

but that's not a problem. If you scroll

very very to the very very bottom

there is the suspension setup which

allows you to move and do the

corrections. The thing is as the body

was a little bit higher by default not

in the center of the pivot and we needed

to you know lower that car the

suspension also went down but we can

return the suspension to the proper

uh correction. So this is the height

offset. So if we go and set up something

like 50, that should be the proper

value. Now we have the suspension

sitting in the proper position and the

knob of the mount is actually holding

the wheel where it should. So the same

uh we should do for rear suspension

height offset by setting to 50.

If you have any troubles and uh or your

model has some naked parts and you don't

want the suspension to be seen, just can

hide it and it will not be displayed at

all. So yeah,

now

the car rig setup is finished and we

need to add the glass.

So

we pick all of the parts of the glass

and

select body. As I say, always select the

component first. Select body and drag

and drop it here.

And because the pivot is the same for

each part of the glass for the car, it

will be correctly placed and you don't

need to worry about that. And it will

work with suspension and with all other

parts and with everything else. So just

to be sure it should be attached to the

body here.

So it works really nice and well.

After that you can hit compile and save.

And now let's shade our car because we

really need to see the rig in its old

beauty after we shade the car. So for

most of the time I'm using the Unreal

Engine automotive materials

and it is free pack. It works really

well. Sometimes I modify this materials.

They are really good to use. So there is

nothing better. I think they will update

substrate and when the substrate

materials is out of the beta stage

because right now it's currently

unstable and I had a lot of issues with

it and when it is out of the beta phase

and probably it will be updated when the

5.4 will be released out of the beta

phase they will update this automotive

material pack and this master class will

be updated to with the substrate

materials but currently usage of the

substrate materials not stable. We will

be fine just with the automotive

material pack. First you need to edit

the project

and

Unreal Engine first will tell you that

you don't have any compatible projects

because it was updated only for 5.1

but we don't have to worry about that.

So you click show all projects and it

will show you your project which is 5.3

or higher. But the asset pack is not

compatible with version 5.3. But the

thing is there were no adjustments to

the materials from 5.1 to four to 5.3.

So you can easily just pick the version

5.1 and hit add to project and hit yes

and that will work. It just like it will

download and will add to your project.

So there there is no problem with that.

It just works as easy as that.

So automotive material pack is just

enough for shading most of the cars and

I never had problem you know shading.

There are few material slots in the mesh

which are actually like we will be using

from the textures or we create our old

materials that doesn't matter. It's not

a big of deal but because this

automotive material pack has just enough

of the materials. So if you go here in

your content browser, you can find all

these materials here. So there's just

like exterior, there are car paint,

caliper paint. There are a lot of things

which you can use and that is basically

enough. So let's shade our car first

with the materials from an automotive

material pack and then we will import

the textures which came with the model

and we'll create our own materials to

cover the rest of the car with this

details. So first of all let's keep

first two. This is just the materials

which are coming with the textures. So

the first one is body which is basically

the car paint. So, let's pick the car. I

would like to use the charcoal. You can

do whatever you want, whatever you like

the most. I just think this one looks

really good because it has flakes. It

has some details, orange peel, and all

of these features that act the actual

car paint has. You can see there. So,

there's some flakes, dust, and all of

that. It is like very detailed material.

Interior carbon. So that's the carbon

fiber. To quickly search for materials,

you just click here on automotive

material pack and go for carbone

and yeah, we need this carbon fiber.

Apply this one to the interior.

So there is some interior color that is

probably the texture which is coming

with the model. We will check it out.

Otherwise, we can I think this one all

of that can be covered with the black

leather and it will be looking really

really really really good.

The black mat is basically plastic.

That's that's the basic plastic and I

think that is glossy or satin. So, let's

go with a satin plastic

and apply it here by clicking on that

button. I just prefer, you know,

clicking on this button because it's

it's just so much easier than, you know,

just dragging here each time. That is

like problematic. Interior black. That

should be plastic too. I guess this one

should be also plastic satin because I

don't believe there is some glossy

plastic should be involved in this part.

So yeah, this is plastic satin. Looks

pretty much fine.

Interior red

that is actually can be used with this

with a also red plastic or like yes

plastic smooth red. I think that should

be working fine here too if we use this

one. Yep, pretty much good. I think

looks really really good.

We are not focusing too much on the

interior but yeah interior silver. I

think this will be good with a chrome.

This one. The second one.

Yep. Good. Good.

Interior color too. That probably also

should be black leather. Let's Let's use

the black leather. I think that would be

just really good. Leather. Black. And

apply there.

Okay, good.

See, so it looks really, really nice

with the leather and it is so detailed.

I really love this material pack. It's

really good and can be used for such

cases.

Chrome,

those are chrome paths.

Let's apply here again. So what I

usually do, I just click here to get the

material shown and then I just apply it

here because before I had leather

material selected but I needed to select

the one which I would use black again.

So I think this one will be really good

with this rubber.

And if we check we have

rubber smooth.

I think we we don't need this capsule or

something. That should be shiny or

smooth. I think the shiny will do. Let's

see how it looks like.

Not quite sure.

[Music]

Well, I guess this is fine for now.

We'll see. Maybe we will change it if it

is getting too much attention through

the glass later on.

Okay, interior bump. Those are

some buttons. We will have a look at

that later. Uh we will compare this

model. I think this one can be home

easily. Those are just like the buttons.

So this one can be just home here. Yep,

I think that should work.

Black shiny. Okay. So, this one

definitely should be

plastic

glossy

cuz that those are insides of the lamp.

That should be like really really glossy

and

reflective here. Lights.

It's lights gloss. Okay, that that is

fine. Let's see

what we can do with that. If we apply

lamp white. I think that should be the

proper one.

Yes. Looks really nice.

Glass.

Good. Let's go for the glass.

This one should be gloss clear because

we should see through that one.

Okay. Looks looks really good. Looks

really good.

White. It is okay. That is white paint.

I think this is just the writings in the

in the interior of this

headlamp. So, let's go with this silver

plastic because it is really wide.

Nice

interior stripes.

That should be some

dynamics or something like that. We will

look at that a little bit further. We

will compare this model from the shading

which we had uh on the website on the

sketch fab where we have it. This is

gold. Thankfully, we have gold here.

Let's go with this metal called dirty

and see how it looks like here. I think

it just looks phenomenal. It's all cool.

Yeah, really, really nice. Amazing. And

those will be red interior glossy part.

That's plastic glossy. Probably that

should be the one.

Okay. The carbon fiber also looks really

good. So, it's all fine. Nice

grid.

[Music]

Yes, if we compare that to our model

here,

there is some grid and the texture is

here. But I really don't like that too

much. So, what I'm thinking about is

that for this one, I'm going to use the

plastic holes. There is a plastic with a

holes material, but I will duplicate

that and name it silver color.

And this one has already holes, but I

will change the tint to something more

silver-like.

And set it as metallic. So, it will have

this metallic

bump.

Save it and use this material instead

and see how that looks like. I think

that should look fine.

Yeah. And even it can be it even can be

a little bit a little bit brighter, I

think, because this one is like totally

white.

So, let's see if we change it to even

brighter.

Oh, yeah. That's nice. That's nice. I

like it much more than this grid. It

just feels more natural. I know that

probably I'm not right here, but anyway,

it will be barely noticeable, but I

really like how it went out and how it

looks.

Rome. So, that's probably for the turn

signals. No problem. Let's assign here

again.

Okay.

And this one is

just a blackout

or basically

Oh yeah, that's even better. That's that

contains even the ceiling. Okay, so that

one should be

some of the textile. I think

striped setting me. Wow. And I think

plain black should work.

Oh yeah, here it is. Yes, it looks nice

like black ceiling in the car looks

expensive

lights. So those uh back lights. So that

should be red

lamp because LED doesn't look doesn't

have the feeling of gradient. So this

one would be much much better.

Our glass. So this one is the glass on

the brakes and the reflectors. So this

one should be red tint

material

because behind of that there is a

reflector which is the geometry which is

really really nice.

This one is the brake.

So D red it's the brake. It's a breaker

because because this one is the day

running lights. It's a DRL and this one

is the brake. So I had a look at this

one. So

yeah. So this is DRL for now. Let's keep

it chrome because it should be only

working uh on the animation because we

will do the animation

uh thing for that one. So it will be

clickable that will be a parameter which

you can use in the rig and which you can

animate in the sequencer later. So for

now let's keep it home and I will show

you like what we can do there. So

interior blue that's

it's actually interesting because that

should be the

safe belt but seat belt but for some

reason it's blue. I will not be touching

it right now. logo. We have the logo

texture. Silver

obviously, but we will not see it

because it only for the door opening

will not be touching that red. That

probably should be here.

For the red here, um I will use just red

paint. I think that red car paint will

be really nice there.

Mhm.

Lights.

So this is the day running lights also.

I'm not sure if I should turn them on

right now. We will also do that

separately as the day running lights. So

let's put it right now on the

just chrome. So, it's turned off, but we

will turn it on later. Okay. And this is

silver. This is the radiators. Okay.

Let's make them silver. So, there there

is actually uh metal silver.

Mi metal silver here.

Put it there.

Yep. And this is our car. Let's change

the car to car paint to white. So we

will have a little bit more of

difference because we don't see those

black parts which are black plastic.

And yeah, right now we can see much much

better what we have here.

It's looking great already. Let's jump

into our Porsche folder. Create the new

folder and name it textures.

and get our textures from

the Porsche textures and just grab all

of them and drag them here.

Okay, so that our decals. So the decals

is the first part. Let's examine this a

little bit more.

Okay. So that should probably have also

emissive map. That's not a problem.

So

to create material out of the texture

which is provided, it's pretty easy. You

right click on this material and then

you go to create material and it will

use it as the diffuse map or base color.

So basically is any PBR material

here we need to add some emissive color

because it doesn't look really you know

glowy. So we can use this one RGB and

connect it to emissive color. It's

already looking better but I think that

should be also reflective and rough

because it's plastic or screen or

something like that. It should be always

you know glossy. So by holding one on

your keyboard number one click here

and add this value to roughness. So it

will be just super glossy

and all of that should be glowing.

Hit save. I think this is just enough to

have it. We will see. I'm not sure if it

has the alpha channel, but let's try to

also add the alpha channel. So before

that, we need to select it to blend mode

to masked. So we will have opacity mask

and drag the alpha channel into opacity

mask. Yeah, it doesn't have the alpha

channel. So

that should be applied as it is. Let's

get this material which we just created

and apply to interior decals. Let's see

how it looks like.

Well, I think it looks good. Pretty

pretty fine, right? So,

looks really really

on spot, I think. So, yeah, it is it is

kind of good.

No problem there at all. Looks looks

perfect. Now

we can create the same for the logo.

Create material. Logo. Material. I think

this that should be also metallic. So

again by holding one. Add the keyboard.

Click here. Connect it to metallic. Put

one here.

And roughness should be something also

the same but

55 approximately. No, I think even a

little bit less.

Let's try 0.2. I think this will work.

Okay.

Um, let's see how it works.

So, there was somewhere in the very

bottom, I think. Yeah, logo. Yeah, here

it is. Let's apply that one. It's really

good that the logo on the outside is I

think yeah, it's fine. It's really good

that the logo outside is actually 3D and

looking really good. So, yeah. Again,

this car is not prepared for displaying

the interiors of the car.

Also, we have the brake caliper, the

tire, and the plate. So, okay, let's

create the plate. Create plate material.

Here we go. And again that should be

metallic.

I just think so.

That looks good. Uh we can take some

roughness maps from some materials from

from the pack. So let's see metal for

example aluminium. There is like

scratches. This is the roughness map

which you can use. Just go there.

Navigate to asset by clicking this

button with a magnifying glass. Go to

this material and drag and drop this

scratches here and apply this into

roughness.

That will be

like this will be looking like that. If

you think this one is too much, you

always can adjust this roughness map by

doing so.

drag the pin and hold and click L on the

keyboard and you will have lur node.

What it does it allows you to use this

mask as alpha and blend between two

values zero and one. So if you connect

it like this, you'll have the same

result. But you can lower this value to

0.5 for example. Or other way around.

Put one here and instead of zero, put

here 1.3.

And now it looks better. Save that.

And in the body again, let's apply our

new material which we created here in

textures, the plate mat to the plate.

And here it is. And it's looking really

really good with this small details of

the scratches of the aluminum because it

gives some sort of realism. So you can

get a little bit more of details there.

Okay, let's go to the materials which we

haven't done signed yet. So, silver.

This one we can't see because it only is

visible when the car has opened doors.

We are not going to open the doors of

the car. So, we may forget about that

interior blue. That is the seat belts.

Like really I don't like that so much

that it uses the same material for

tur blue but doesn't matter. We can look

for some blue

uh leather. There's some leather but

maybe we should

look for the seat belt

and we can always adjust the seat belt

color so it will match and that will be

fine. But yeah, looks good. Again,

interior is not the best part of this

car. Just like let's add some tint and

make it blue.

Just like that.

Okay, this is fineish. I'm not the fan

of that, but when you have the car with

a proper material assignment inside, you

won't have this problems.

Again, let's continue. Silver. We don't

see that. interior stripes. So, I think

here should be the dynamic or like music

system. So, let's go with the holes and

apply this one with the plastic with the

holes and see how it looks like.

Yep. Yep. Pretty good. Pretty good

actually.

Interior color one. I think that should

be leather.

black not perforated.

The perforated I think for this amount

of

of material will not work really well.

So yeah, so this one is

really nice.

And interior speakers. Do we have the

speakers texture?

[Music]

Nope, we don't. So, we again use the

plastic with holes.

Here we go.

That would work really nice for the

speakers. Really nice.

So, yeah, this is it.

The body is shaded. Let's switch to the

color purse and the wheels. That would

be much faster and much easier. So,

let's start with a front caliper.

There just four materials that should be

white. Easy as that. Let's

get their car paint white.

Nice. Um, black material.

For that, I'm using anodized metal

because it's black. It doesn't have any

like reflection. It is really close to

the material of the brake pads. So, that

kind of looks real. Then we go with this

silver parts. Yes, not a problem. Let's

use the metal silver.

And for this one, black shiny. It's like

caliper

black. I think gray will be looking

better, but we can we can put even red.

We don't care. We can do whatever we

want here. So,

next one is

other caliper. We should do the same for

the rest of them.

And the last part is glass. It's pretty

simple. They have all the same material.

So, we just need to open every

single one of them.

And in automotive materials, look for

glass

clear. And we will apply the clear glass

for all the lights. So this is for the

rear lights. This is for the front

lights. This is also for uh rear side uh

like indicators.

Now we are going with the glass tinted.

We applied here on all of this other

sides. Apply. And on the front glass

too. So yeah, it doesn't matter. Let's

save all. And

last part,

the wheel.

It's a little bit more of the things to

do, but we'll manage. So, this one is

silver. I doubt that because I don't

think so that can be silver. Let's go

with a metal. Probably

metal. Steel would be

steel. Sand blast. Something moral for

that case. brakes. Let's go for the

rotor.

And here we have the brake rotor iron.

But I think we have here the carbon

caramic with this all small cracks and

stuff. So let's use the carbon curamic

and apply it here. See here we are just

lucky. It immediately applied. But

sometimes

if it doesn't work, you can open this

material and disable or enable use

objects. So right now we disabled use

objectives and see it's like it's huge.

Uh the cracks are just off. They should

not be such you know big size. So we can

either tile the cracks. So here's like

the cracks intensity and crack scale. So

we can try to, you know, change the

scale a little bit, making it smaller.

That looks a bit better. So yeah, I

think I will leave it like that. That

looks better. But I don't like that it

is stretched. So and there is no tiling,

I guess, for the cracks. Yeah, there is

no tiling. So let's keep use object UVs.

And yeah, that looks much better in my

opinion. Just let's scale the cracks

back to 10 value.

Yep. Yeah. That that is I like the most.

Right. That's the the best option we

have.

Okay. This one is

white again. Car paint white. Here we

go.

This black material.

I think that should be metal. Painted

painted metal. That looks pretty dark

and fine.

Black shiny

metal painted.

I don't like it too much, but we'll fix

it. This one should be silver.

Metal silver. Here we go. Just like

silver frame here. and tire mat which is

here. We need the texture and create

material. This is tire mat. Let's let's

again steal the roughness map from the

automotive material pack. So if we go to

here and look for rubber, we can have

some rubber roughness maps. I think this

one will be okay. And let's apply that

one to this one. No,

there's another one.

Roughness. Yeah, this one is looking

better already, I guess.

Okay.

Unfortunately, this

car doesn't have the texture for

uh for normal map. So unfortunately

we've got to

we got to do what we got to do. So

currently it's what we have

and what we can have for this particular

situation. But anyway during the moving

when the car is moving we won't see this

happening anyway. But yeah, it it would

be really nice to have them normal

texture for this car. But unfortunately,

this is the free model and not all the

textures are present and at least this

one is fine to have.

I'm actually curious because I have

other model which is like polestar and

there is a texture for the

burlli. Is it the same UV?

No, it's it is not.

It's not. Yeah, unfortunately

because this one is completely different

texture. Yeah, it works different way.

It's really strange. It feels like it

has the

uh the normal map like or the light just

burned in. But yeah, whatever.

Unfortunately,

uh we can try to do that with Photoshop,

but really it's not the purpose of this

master class.

Okay. So, uh I really don't like that

this wheel is black. So, I think I'll go

to automotive materials and look at the

car paint black. Duplicate that and name

it uh gunmetal. So, I would like to have

the gunmetal color for

for the wheels. So, it should be a

little bit more grayish.

I think that that should look much much

better.

Let's see. Oh, yes. Yes. Much better.

Let's see if I can put it here, too. I

think I think that works. That really

works. Okay, so that was our front

wheel. And now we have the last one is

our rear wheel.

Okay, let's just copy the materials.

Okay.

Okay. That looks that looks fantastic, I

think. Okay. Now, let's delete this from

the scene. Don't need this anymore. We

have all prepared.

Let's move our rig and let's

take our rig into the scene.

And this is how it looks like. It's all

prepared, all working. I think we just

need to adjust the height of the body

because it's too up and it should be

much much lower. So, let's try to do

that.

Let's go back to the rig and set it to

minus 34.

Yes. So this is it.

I think that looks pretty much fantastic

especially like even in lumen. So it's

all really really great. Okay. Now we

need to find out why I told you not to

import

the glass

as the combined mesh.

So here I will demonstrate you what

happens with the lumen. So there is a

thing that when you have uh fog or

something like that in the scene and

when you have the glass in between the

lumen just behaves strangely. It cannot

calculate the multiple translucent

objects and you will have a small issue

with that and this is why I prefer to

split the glass. So you will avoid those

issues if you have the glass split from

the model and having separate meshes for

the glass. Now let's continue fixing

reflections and glass issues. So if you

see the glass reflections, not sure if

it's possible to see. Yeah, here for

example on the left side here you can

see that the reflection is like choppy.

It's like squareish. It has some issues.

So to avoid that, we need to open every

glass asset and look for settings which

is called high precision dungeon bases.

So you need to apply that to all glass

models. Unfortunately

unfortunately it's not possible to do

in a batch edit. You can only enable

that when you are importing with the

datas smmith. But the datas smmith is

imported through the Mayer or uh other

applications. So you would need to do

that manually unfortunately. That's not

a big deal. But yeah, that is why I

prefer merging for example the border

mesh because otherwise it is just like

really time consuming to fix this. So

you see the reflection is wobbly or

something. You need to enable that

checkbox for use high precision tangent

basis and hit apply changes. And after

that the reflections are much smoother

and that will be especially

visible in uh past tracing. So okay

apply changes. It's getting better.

Apply here.

And also do that for the body because

the

car paint is also

affected by this setting.

And you will get much smoother and

softer reflections

which will not be like you know looking

like a letter or some sort that will be

smooth and good.

So okay

we need to save everything when we

closing this window. And right now it is

looking

better as we have steering wheel also in

our rig function prepared. We need to

split that one. I forgot to split one in

Blender. So we can do that again in

Unreal Engine by using the modeling

tools. So let's drop our body mesh and

split it. I think that would be faster

to do in Blender. But in order to avoid

jumping there and back and shading the

car again, it can be done here like

within 5 to 10 minutes depending on the

geometry. Sometimes it can be hard to

do. So let's have a look. Go in mesh and

three select.

Now we need to select all of the parts

of steering wheel. So sometimes it's

really complex and there's a lot of geo

which is like inside which we don't see

and we need to select that. So here we

need just to be very

attentive paying a lot of attention to

what we select. So even though right now

it seems like I have selected almost

everything probably it's not like that.

So uh we can switch through the modes by

pressing on A or

and see different modes. So you can see

better what we have selected

by pressing just A.

it will be showing you the different

view modes so you can easier

see what is available here and what

you're selecting. So currently I think

it's just like I have selected just

enough and I would like to go with the

volutric brush and peak what is inside

because if we go to wireframe mode

you'll see that there is something

inside and still blue and not selected.

So for that reason we really need to

jump with a voluometric brush. Let me

pick other parts selected by the

material which is connected.

Fortunately there is no such function as

Ctrl L in Blender when you can just

select all the links all the linked

triangles or faces or points. So yeah,

you really need to go and check what

you're selecting here.

It is a little bit frustrating, but

that's really sometimes just helping you

not to jump into

3D software which you're using for model

preparation.

All of that is just for you to know and

get familiar with the

3D tools that are in Unreal. Okay. So,

let's now try voluometric brush

and just brush it. Make it small and

brush it over. Let's make it even

smaller and brush it over. So we will

get something which is located inside

our

steering wheel and we will be able to

remove then if we select something what

we don't want or we don't need we will

be able to remove that from the

selection anyway.

Just making sure that we have everything

here is selected.

All of those small bolts

which we have inside

because it's it's really not like in

Blender or any other 3D software when

you can click on something what is

inside. Fortunately, these brushes which

are in Unreal, they don't allow to do

that. They always, you know, stick to

the gel

and collide with it.

Just working really carefully here so I

don't touch anything what we should not

be touching.

Okay, let's see with the wireframe

again. If we selected something outside

of this selection.

Oh yeah, there there is still something

inside which is

not selected. This steering wheeltric

brush sometimes just really helps to

paint the geometry inside.

Okay,

selected something different that that's

not a problem. You can click by material

the brush and uh go to this point and by

holding shift deselect this part which

we don't need.

Okay, I have high hopes for that. I

think we did really well here. So we can

separate this right now by clicking on

separate button

and we will see that the model will pop

up and will appear here the new sub

mesh. Let's move it high and see we have

any triangles missing or hanging in the

air. No, this is the perfect separation.

Yes, it is. It is perfect.

Okay. So, we can hit accept right now

and we will have now separate steering

wheel

from the body. The next step is to

adjust the pivot because when we

separated this mesh, the pivot is in the

center of the like car origin. But we

don't want that. We need to adjust that

to a proper position. So let's go to

modeling tools

again and go to the form edit pivot and

hit center

and click accept. Let's see what we'll

get there. See the steering wheel is

still like rotated. It should be

standing straight. So let's go into the

right view and see if it is aligned

properly. It should be just very very

like straight.

Let's unlock this one and go to edit

pivot.

Pass it center rotation zero.

Accept. And first let's just move the

steering wheel so it is like standing

really really straight. Edit pivot. Set

any rotation to zero. Hit accept. And

let's go to lit mode into perspective.

So it looks fine right now. And now we

need to add it to our

car rig. So let's delete it from here.

Let's navigate to the body mesh of the

steering wheel and uh edit the blueprint

in viewport. Under body, you can find

the steering wheel component.

So

we need to take this mesh and put it

into

this component. Sometimes you will have

it in different place because always

like this model is not aligned anywhere.

It has some rotation degree. So

you need to align it. Let's switch to

visibility collision so we can see

everything better. And you need to align

that and pick the proper angle. The

thing is the function works this way

that it it always rotates uh the

steering wheel by X uh coordinate

rotation and you need just to place it

properly and see if the angle is like

matching here with the mount place. So

let's try minus 14°.

Place it

as best as you can.

Switch to lit mode again. Compile. Save.

And let's see how that works. So if we

pick the controller here and go inside

and try to turn the wheels, that will be

working. Maybe some little pivot

adjustment is needed because it's going

like two on the side. But but the

steering wheel is never like it is never

completely round. It is different shape.

So I think it's just too high. The pivot

is too high. I think we can lower that.

So it will be rotating a little bit

lower where the mount is actually is

because the rotating part is this center

circle.

So let's go back to our static mesh. Go

to modeling tools by clicking shift F5

and let's go to pack perspective and

look at this point. Yes. So we need to

find because the geometry the steering

wheel is not completely round and we

need to find our center by ourselves. So

that should be somewhere over there. You

can just like match it by your eye

something like here in the center of the

pot logo because this one should be

rotating.

Hit accept and that will immediately be

applied to the rig because it changed

the static mesh uh position.

And in that case, we need to put it a

little bit lower in the rig because

the static mesh just get different uh

pivot. Let's compile, save it, and let's

see how it works again with the

controller.

Yeah, it's much better. Remember the

steering wheel is never like completely

circle or it doesn't have the actually

the center

uh the part which is rotating is

different from this distance. It's made

for a purpose. I'm not actually well

known with the regulations. Why is that

made on purpose? But this is how it

works. And now we have everything

functioning. And the wheels are turning

together with the wheel with the

steering wheel

and we can use that

before we jump into the settings of the

rig and suspension and all of those

functions. We would need to prepare the

function for brake lights and uh I think

also we will include blinkers for that

one because we really need to prepare

the car for complete

animation

process.

So let's start with the braking lights

because that would be the easiest part

to do.

First we need to get into the blueprint

and also open the body mesh. So we need

the material parameter uh the material

ID.

As you remember I mentioned before that

here we have the

uh I think not the lights the red this

one it's the brake light basically it is

covered under the red glass but we need

to make this emissive. So,

but this emissiveness should only be

enabled by your desire

and we need to create the parameters. We

need to create the function and

make it work. First of all, we need to

create the function which is brake

light. Let's name it break light.

And here it is like really simple

approach to do that. So we pick the body

and now we need to find the material

number which is element number 25.

Here we go. And check set material.

Here we need to create a branch

basically condition on which this

material will be will be applied.

By default when it is false we will have

MI chrome

chrome material. So MIL

chrome 02

that is when the brake is turned off.

When the brake is turned on, we will use

the material

lamp red.

And again, the target should be our

body. Unfortunately,

there is no way to

use the same material slot. Well, you

you can, but you need to redo that in

Blender or um in Unreal for each car

which you're using. But unfortunately

for this one, you would need always, you

know, check the material number or

material name and material name also can

be different each time. But yeah,

it's the easiest way currently. So,

element number 25, element index 25, 25.

And we need to create the boolean which

will be a variable for turning the

brakes on and off. So let's go to car

setup and create the new variable and

name it break.

Put it in car setup.

Put it here.

Get break because we need to get this

condition and put it into the condition

of the branch in the break.

Check the boxes exposed to cinematics

and instance is editable. So we will be

able with the exposed to cinematics we

will be able to control this parameter

in the sequencer during our animation

stage.

Editable instance makes it work just

like in the editor. So you can switch on

and switch off this parameter.

So the default value we first compile

and the default value is off. But this

is not all. We have created the logics

for enabling the brake light. Now we

need to add it to construction script.

So if you go to construction script,

there's like bunch of things which are

happening all the time and we just need

to set it up here. look for our function

brake light

and connect it to the whole blueprint.

So hit compile, save and also don't

forget to add this brake light function

into event graph because the

construction script only shows you what

is happening inside the editor and we

need that also to work in the sequencer

with the cinematics. So go to event

graph and add the brake light here to

connect it. Compile and save. And let's

have a look. So let's go back there.

And it was in the car setup in the very

first one. Here is our variable brake.

And if we turn it on or off, we are able

to show that the car is breaking, right?

But I saw the pictures of Porsche

breaking. And this part is also should

be glowing, but it isn't. So, we need to

reassign the materials. Don't worry, we

don't need to jump into Blender yet or

probably never. We can redo that right

in the Unreal Engine.

So how we do that?

Drop the body into the scene.

The thing is like with this modeling

mode which we have enabled with our

tools, we can change also the materials

in and reassign them. So we need to find

out what is the material there. There is

some issue that it's covered by the

glass but it is not a problem. It's some

part of raw material. So we will be

okay.

Right now, let's go into attributes and

look for edit materials.

Let Unreal load the model because it

will draw right now the wireframe. We

don't need the wireframe. It's just like

I find it really really, you know, thick

and just distracts you. So disable the

visible and it will disappear. So in

order to get inside we won't be able to

do that because like see it's just like

selecting

the glass. But the thing is that you

can't you know pick what's inside,

right? So that's the problem of the

Unreal because in Blender for example

you can easily go inside and pick

whatever you want. But here it just

doesn't work this way. I think that the

material is chrome. So I can go into

brush type selection by material all and

basically click in this one and it will

select everything which is covered with

current material slot. It doesn't matter

that it is uh material because we can

have the same material like chrome here

on the front or somewhere else but it

will select the current material slot.

What we're going to do now uh we will

deselect the part which we don't need.

So this is the I believe this is the

turn signal

and we will assign the separate material

for that one. But first let's try to

disconnect this one. Let's select the

brush type selection mode to material

connected and by holding shift click

here. Okay. So you can see that those

parts are not connected and it will take

you a lot of time you know to get rid of

that. There is easier way to deselect

some parts like that. Let's select

voluometric brush and change the brush

size to very very small. So it will also

select what is inside and behind. So

let's make it really really small. And

by holding shift, just paint over this

part which you don't want to be changed

with the material.

Just as easy as that. And you have it

clean. And we have selected what we want

here. Now let's switch to other side

because it's the same here. And we need

to clean it up by holding shift. Just

draw that material and deselect it.

Now we need to assign the same material

which we have here right. So it will

also be affected by our switch which we

have created just a few minutes ago.

To do that you need to go to the

material array look for material that

was material number 25. I remember that

correctly. And now you need to select

active material. So we go and pick the

material number 25. Right?

And after that do this selection. Let's

let's see in wireframe that we don't

have anything else selected.

No everything is fine here. All good.

Aha. There is something. See there is a

small dot. Yep. It's all good. We don't

have anything else selected here. All

looks pretty fine. Oh yeah, there is a

small spot. Yes,

which I missed. All is fine. Right now

we have proper selection. We have active

material selected. It's number 25 which

we want. And now we click assign active

material.

Done. And hit accept.

Wait and re wait for Unreal to prepare

the model.

And after that our function will be

working with these parts too.

Let's go and check it out.

So if I select the blueprint rig again

and click on the brake.

See

now it's working properly

how it should be. So this is the brake

part and this one is day running light.

So it is working as intended.

Now let's check out what we can do with

this

side here. Do we have here the turn

signals on the left? No. So now let's

work with the

day running lights.

The process is pretty much the same. So

if you go to the rig

you can create new function which is day

running lights.

Okay DRL

can go to the brake light just copies

this thing. Go back to DRL

connect it.

Okay, now we need to check out which are

okay. This is rare lights. This number

23

and the front lights uh something like

lights or something like that. Or maybe

this one we can also use.

Okay.

Not sure probably this one I will be

using also for turn signals.

Let's go with this one with this four

which are light glass. Here it is. It's

number 14 and number 23. So here we just

type 23 23. In the true we like we got

to use lamp white.

Copy that. Paste it here.

and do with rare lights. That should be

lamp red

again. Connect body.

Let's check it out. That's 23.

This one is 14.

This one is 14. Now we need to

create another. We can duplicate the

break and name it daylights.

and the DRL is connected with the

daylights condition. Compile and save.

Let's go to our construction script

again and connect the DRL here. Connect

it. And also again, as I said, do not

forget to add it to event graph because

this one only will show you the changes

in the editor, but we also need to make

it work during the renders. So go to

event graph and again connect the DRL

here compile and save.

So right now we can turn on and turn off

the daylights which is really cool for

cinematics. You can do that for starting

some sort of starting sequences where

the car is not yet present in the frame

or you want you know to implement it

or show that. So you can just turn the

daylights like boom and they work. Okay.

See I missed there a little bit of the

glass. I need to select this

and

see this model. And that should be

tinted red.

Yep.

Tint red. Yeah, because when the light

is turned off, it should be also red.

And this is it.

It's looking beautiful.

Perfect.

Here it works. And here it works too.

Okay. Now

we shall try creating

the blinkers. So we will have also to do

the same approach for the blinkers.

I think let's go with the rare side. And

probably we would need to use this one

for the blinker.

And I guess this one too maybe is Oh no,

this one this one should be acting as

the as the blinker.

So we will be assigning material to

blinker left and blinker right.

So let's go again to

modeling and try to pick the materials.

So what we can do right now is go to

mesh and pre-select.

After that select all this glass which

is on our way by material all just click

on that. That would be much much easier.

should click separate

and we will have the separate body mesh

right now for the glass which we

disconnected. If you pick this one, we

can move it somewhere like higher and

hit accept.

So we will have our separate glass

separate body and it would be much much

easier for us to select

the triangles or polygons for material

assignment which we will be using for

the blinkers.

Now again select the body go to

attributes select edit materials

and after edit materials

enter in this mode just select by

material

connect it

select this one

this one is should be only only This

tube will be lighting. So I think this

one is fine.

Now this one if we select by material

all that will select a lot of stuff here

and there which we don't need which is

inside also some stuff which we don't

need. So this one is better to be

selected by voluometric brush. So let's

use the voluometric brush paint it over

and then just select material

by all and holding shift deselect the

the ones which you don't want to be

affected. So this one is done.

See if we can also by material connected

disconnect this one.

Okay, so that works fine. This one is

good. Nothing else is connected. Let's

go back to this one.

Material all

select this

and by material

voluometric brush and clean up this one.

Okay. So this is going to be our left

blinker

material which will be assigned and

which will be using the same function

which we had

because it will be different material

the new one which we will create. We

also need to assign a new material slot.

So here in the materials, click on plus.

Scroll down and let's assign something

here. It doesn't matter. We just need

the representative for that one. So let

it be metal chrome one. But just

remember the index of this material. So

index 33.

So active material pick the 33

and hit assign active material. So now

you have new material slot which is

assigned to this and we will use that

for the blinker. Let's do the same for

the right side.

Add another material that will be number

34.

And do just absolutely the same. Pick it

with this using different brushes. Pick

this one. This tube for the side. This

one we would need to use

the voluometric brush to paint over.

Then deselect

what we don't need. See here also.

Yes. All fine. And now here

by material all this should be working

good because we already separated it

from the previous part.

Okay, good. So this is going to be our

turn signals

and this we should also pick active

material number 34.

Also, let's assign Rome here

and assign active material on the slot

number 34.

Okay, I think this should be fine.

So, that hit accept

and let's create the blinker material.

But before we do that, we should not

forget to put this glass back into the

rig because we basically separated it

from the body mesh, but it maintained

uh the pivot and all of those parts

should be on place. So this is here in

generated your username and here there

is this mesh. So we need to go to

blueprint viewport

select body again the component drag

this and put it here. So it will be the

sub mesh here will be assigned here. As

you can see it is all in place where it

should be.

Compile save. Now

we can delete this from the scene

and let's create

the blinker material.

For the base of the blinker material,

I'll be using the master material which

is master emissive material in

automotive pack. It's called M emissive

master. Just Ctrl D and I will name it M

blinker.

master.

Here it is. Oh, just made a typo. So, it

should be blinker master. Uh, creating

the the blinker material is pretty easy.

There is nothing special in it. You just

need to add time s and multiply nodes.

Nothing more. That should be just it.

So,

first of all,

we need to expand this a little bit

because we would need more space. Add

the node time

and multiply this node. Just drag the

spin and type multiply. Or if you put

the star here by pressing shift 8, you

will have the multiply node too.

Multiply it.

Then by holding one on the keyboard,

click with your mouse button on the

field and you will have this parameter

node. Right click on it and convert to

parameter.

Name it blink frequency.

This should be one.

And connect it here. So we will be able

to edit that in the material instance.

Now we need the node sign which will be

actually doing the blinking over the

time

and what is left is just to multiply

that

a lot of times. So you need to

disconnect this and you need to

disconnect this.

After that you go to multiply

node here.

Connect this to

connect this to A. Connect this to B.

Then we should multiply that again.

That's really strange. Yeah. But that's

that's how it works. And connect it

here.

We are almost there.

Then you

do multiply from here. Again,

it should be going B. That should be

going A.

And connect this multiply result into

this multiply result.

But the thing is that I don't want this

one to be black when it's turned off

because it should be having something

and we will have black matter between

those blinks and I really would like to

avoid that. So by selecting the material

result node, switch from shading model

from unlit to default lit. And here

to make it look good,

add again the parameter one. Connect it

to metallic. Set the value to one.

Then add another parameter and connect

it to roughness.

The base color should be white. So by

holding three on your keyboard, click

here, connect it to base color and make

it white.

Now you have the metallic chrome ball

which will be

blinking. And you'll be able to adjust

the color when we create the material

instance parameter.

So I don't like the roughness. It's it's

pretty much super rough. So let's do

something like 02. Yes, that looks much

better.

And save that.

And create the material instance. Right

click, create material instance. Name it

MI Blinker.

This would be fine. And here we will be

able to change the color tint. For

example, for something like orange.

As you can see, it looks pretty

impressive. Also, you can change the

speed of the blinker, but the one is

fine and looks real.

Now, we need again to make the logics

for left and right blinker. Let's go

back to our rig and create new function

here in functions.

Name it turn signals

logic again is just the same. So you can

use the brake light. Copy that including

the branch.

But we need two. We need for left and

for right. So this one is left. This one

going to be for right.

And we need to variables. So we can

again copy our day or break light uh

variable. It doesn't matter. So

duplicate, turn left.

Duplicate, turn right.

So let's take turn left first. Go here.

Get turn left. Connect. And here. Turn

right. Go here. Get turn. made a typo

again. Turn right

and connect right to the branch.

So when it's false, it's chrome and when

it's true, edge should be blinker. But

we need to change the material number.

So 33 is turning left. 33 and 33 here.

And for turn right the material index is

34 and 34.

Here we need to because if we would like

to have it working sim simultaneously

we need to make a sequence

sequence this and then this.

Compile and save.

For true, we need to set mi

blinker material which we just created

material instance. So we can go and

check it here

and my blinker material here is

connected

and here to

compile save and let's see how it works.

Let's turn right.

Oh yes, I always forget to do that. You

should, you know, learn from my

mistakes. It should be connected to the

construction script and event graph in

order to work in editor and in the event

graph. The function doesn't do anything

unless it is connected to construction

script and event graph. So don't forget

to do that. Continue. Save. And let's

turn right.

And it works.

And if we have them both at the same

time, turn left and turn right, because

it uses the same function with the time,

they will be always in sync. So you can

just like turn right, turn left, and you

can change them whenever you want and

the order you desire. So it's not a

problem to do that. And it perfectly

should be working in past tracing too.

Yep, this is it.

Okay, we have now all working. We have

brakes, we have turn signals, we have

the lights turning on and off. Let's add

some more spice to it and create the uh

the braking rotors which will be hitting

by the parameter setup. So let's open

our wheel and check the material which

we have here which is the brake rotor

carbon ceramic.

Let's open this material and let's go to

the parent like master material. So here

we can add the function which will make

our brakes heat and emit light.

So first by holding number three on the

keyboard and clicking on the mouse we

will create the parameter for the color

let's make it really really saturated

red orange color something like that and

now let's multiply that by the value

which will be defining how much emissive

light we will be producing from our

heated brakes. So right click here and

click promote to parameter. Name this

parameter heat.

Nice.

Now connect it to emissive color. Let's

use our parameter heat and put it into

the group of base color.

Click apply and save. Now let's switch

back to our router.

If we increase the heat, it looks really

strange because the whole material is

becoming

red. But we don't want that. We want our

material to be also showing those lines.