All language subtitles for 66. Adding a Scene Transition Effect

While we're navigating through our UI there are some a bra

Changes between scenes

That we want to resolve and

The weather going to do this is were going to use a screen transition in the screen transition

It is essentially what you see a lot of games where they will be like a screen wipe that comes over the screen

And then

That will transition into a new scene

And that's what we're going to do because Dad will

Mask the abrupt changes between our different scenes

And just generally made the game feel that were salad

Cyber touched texture to this lesson as a resource it's called screen transition

DNG so go ahead and grab that

Downloaded and bring it on in

To your file system

Can you can drink that screen transition into the assets UI

Directory

Alright let's create a new scene

Will it root type of canvas layer

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Let's add a

Colour rectangle

As our route now or as our first child rename this to screen transition

Let's make the colour rectangle

The false Eyes by changing the Anchor preset to 4 rack from this button up here

In the towbar

Let's see this in seems UI and screen transition is fine

Actually

We don't want to say but here we want to save it in autoload because this is going to be something that's available to us all the time

So let's go and save that they're not alone

Alright

So going to screen transition now going to write a sheet that will do the transition effects

So select the colour rectangle

Come on down to the material section

Which is near the van

Empty dropdown and then new shader material

And then in our sheet material here

Flight

The shader resource

Create new shader

And just clicked create with this window comes

And then click into the share to bring up the shader editor

The defaults here are good

We wanted to find it uniform now so I'm going to say uniform

Sampler2d

And this is going to be cold transition

Texture

And then put a semicolon at the end

It's all we've got the shape parameter now transition text you

Golden Grandad screen transition at png and Dragon Andover

So now that's at as one of our sugar parameters

And what are we going to do in a fragment shader

Well what we want to do in the fragment shader

Is essentially

Animated transition over time

Such that the colour rectangle is covering something on screen

In accordance with how far we are through the transition so

What's create another uniform

Marina call this uniform flow

What's the percent

And unless you call me

Int range

0.0 to 1 points

And then don't forget a semicolon at the end

So now I've got this present parameter here

Social what we're going to do is this is a grayscale texture this transition texture

So we're going to compare the texture

What's a red Channel

To the percent of

And depending on

The value of the red Channel compared to the present

Either going to render the pixel

Now

Why are you using a red Channel well

In a greater scale texture

The RGB channels all have the same value

So essentially

We're just using the texture to include some data

And it doesn't really matter what

Channel wheels we could use our orgy or be

The only one of you can't use is Alpha because the alpha is always

So what we going to do

Is we are going to

Crab the colour of the transition texture at the current UV

So I say

Back for

Transition

Colour is equal to

Where can you use the texture function

Going to pass our transition texture into there

And then ruv is going to be the movie that's coming in for this

Texture and then we need a

So my own at the end

Describing a colour from our text you at the same UV as the pixel that were

Considering in the colour

For the fragment

Again remember the fragment shader run

For every pixel

In a text

Recently getting

Corresponding pics

Add the transition

Texture

Now

Is that technically the corresponding pixel because UV coordinates ra-01 basis

Inner transition texture is 256 by 2

56

In our colorectal nose actually wider and has a different aspect ratio

So

It's getting

Colour of

Texture at the UV that corresponds to the UV of the current fragment that will

So this will make more sense as we get into

To do is to say

If

And then in parentheses

Transition colour

Are

Is less than 2%

Then we're going to use curly braces because that's what a shared language uses for blocked

How to say Khalid

A

Is equal to 0

With a colon at the

Else

And then the else block we want to write colour is equal to

Texture

The constant texture and the constant UV torch actually saying

Just use

The colour of the colour of rectangle

If this is not the case

Now if I move the present

I can see that we get something really nice

Looking

So as remove the process

Drinks in an hour

Now when you play with this present you'll notice that the edges are very strange they look kind of bubbly and Justin

Right

That's because the default

Filtering as applied to the texture

Is I believe

Linear

Could be run on the exact filtering but

Basically there's different ways of filtering a texture

So that

You can

Infer what data

Is between 2 pixel so friends

If you take a small image and you upscale

The filtering that you use on an image determines how much

New data is created

For that

Pixel art we actually don't want any

Filtering to do

We don't we don't want our pics like to look blurry when we are skillet we wanted a look really Sharp

And that's the same instance in here

We don't want cadoux to infer

What data exists when this text

Gets to

We wanted to use the real pixel day

What we need to do in the uniform sampler2d here

Are transition text

We need a AK just before the semicolon here

I need to specify filter nearest to tell it

To use nearest filtering aka preserve pixels

Let's

Do this now so now you can see that we get this nice pixelated Edge

Now the delivering or the sort of

Darts the empty darts here along the edge are

Due to the way that I've built the texture but they should actually be just fine it can it gives it a retro look

So where can I go where can I see this is fine

And

One thing we need to do is we actually invert

The if

So instead of transaction colour.are is less than 4 settlers do greater than percent

And that inverse of the other way as you can imagine

Will start at zero for our transition

We'll go all the way to 1

For the transition and then we'll come back out

For the transition

No the thing about applying a shaded to a colour rectangle

Is that you will notice that when you change the colour

The colour

That colour is not

Transferred to the show

And immediately I don't know exactly why this is but we can very easily fix this so

In addition to our transition text

Let's create a new uniform

And this is going to be a vet

4

Transition

Colour

And say Colin

And then the call in after the corn were going to say source collar

Now that invalidates hour variable down here this back for

So we're going to call this transition texture colour

And rename it here as well

Ok and then instead of saying bring a texture down here in this else

We're simply going to say the colour is equal to

Transition colour

Ok and it's Black by The Fall

And so now if we go down to our premises

We can change this transition colour to that brown that we used throughout the game

Just like that and that brown hex code is 3 f

26

31 in case you don't have it saved

And so now we've got a nice looking transition texture

That we can use now

We need

So what I'm going to do as I'm going to add an animation player to

The root node

And I'll move it as the first child

What's create a new animation

And let's call days default

Let's make the duration

4 seconds like usual

Let's select HR colour

What's the like the animation to have at the bottom

And a let's roll down 2 hours

And let's keyframe this percent right here so click on the keyboard next to the percent sheet of perimeter

Play create

And then at the end

Let's set the percent to 10 in Surrey Quay at the end

Change the value to 1

You should see that

Weather

Create an easing belly for this so I'm going to select the first keyframe

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And make the easy closer to 2

And that just looks much nicer

You can play the animation backwards by the way with this button right here this play backwards but

That's how we're going to be using it in engine sorry

Playing it and then going back

So that's looking good

Let's create a script for a screen transition

And we're going to want to do one thing

That special here which is that were gonna create a signal

Transition halfway

That's going to tell other parts of the code that the transition has fully covered at the screen

So that we can do things in the background

And you see how that works on justice

Regard transition halfway

Now let's

What's create a mountain called

Transition in

And what will do as well call animationplayer

Play

Actually was renamed as to transition so it's just function transition

And let's Create another method here called

Funk

Transition

Halfway

And then here was it we're going to do transition halfway in the reason that working in function for this

Is because we're going to call it in

The animationplayer

So let's Create comment the tracker animation so open up animation

Tell her

Click and track call method track

The root node screen transition

Can I had an inserted key

Which is

Transition halfway

And drag it on over so that it at the end

So now when it gets to the end which is fully covered

It's going to admit that signal which again will let us know that we can now switch out the scene because this is

Be on top of

The window

Now there's something tricky here

Which is that

That signal is going to be a minute again when we play back

And when are we going to play

We're going to do is we're going to wait in here

We'll get away

Transitioned halfway

Just like so

And I'm going to call animation player

Play backwards

Default

So it's going to play default

Await for that transition signal to be sent and it's going to play

That animation back

One problem we have

When we can't play backwards

Is that

It's also going to admit this transition halfway single again because that's happening at the end of the animation

And

That's not exactly what we want

Do

So that we can fix that these weekend simply do the following

We can create a new variable

Call

Skip

And I said that to false

Then RM8 transition halfway will say if skip

We can set skip in

Two falls in here

And then we can return

Well a way to transition halfway and then when that transition is done we can say skip in make here

And then when this play backwards happens

It's going to get to this Block and see that skipped it is true

It's going to reset it but it's also going to return so we

So we don't have that transition have we're happening again

We were just ignoring the sex

Transition pathway signalling

So with all of that out of the way now we need to add this as an auto load but before we do

What's like to routenote here

Let's at the lair here to something like

5 / Rangers on top of everything else

And now it's got a project project settings

Autoload

Let's go ahead and load up

That seems autoload

Screen transition

Screen transition is an autoloader

I'm going to show you how we can use

I'm going to go open my main menu

Script here

And sign here in our on play Press we can do

Screen

Transition

Transition

So we can call that will kick-off the transition

Then will await

Screen transition transition halfway

So we're going to wait for that to be done

And then we can change our scene

To the file

So now if I run my game

And I click play

That's not gonna work because

Let's go back to a screen transition

We got hit by the

Control node Mouse filter so we need to go to a screen transition

Go to the colour rectangle here

And we need to

Change the filter mode to ignore

Now it may actually be beneficial to introduce them Mouse black and capabilities of the transit

Because then that means that we can't do any input while transition is have

Which makes Levi a good

So let's leave the mouse filter in place and what will do when our animation play

Is will simply said the colour rectangle to invisible by the four

So let's

This off as visible so that's now in this

And when I control Now does not visible

It does not accept any emails events so we can Mark that is invisible with little I I can't like we did

With our colour right angle selector

Open up the animation panel at the bottom

And then let's go down until we see

The visibility option

Which is about Midway through

So we got the visible here

Let's

Keep playing that by clicking the key icon

Click

So we got this one here now remember we're playing is animation backwards to

So what I'm going to do is add .01 seconds won't change my snap 2.01 I'm going to zoom in

Until I see the point zero one mark

I'm in the market as visible right here

Until you see what this is doing basically this will set it to invisible

And then after 8.01 seconds will be visible in the reason for that is because

When we come back around

We're going to want to send it to invisible again so Mouse input can have

If we only had a single keyframe here

Setting it to visible then we wouldn't be able to toggle it back to

So that's the purpose of these two keyframes and this will be not noticeable so it should be fine

So now we go back to our main

We should be able to click on Play

And we'll get a nice transition like

Never a couple of other places where we want to introduce that transition

What are the places we need to transition as well is to the options menu

So what's going on main menu here

And I'm

Close the advert wind

And basically what we want to do is

Copy these two lines and paste them

Right above

The rest of our code in the on off

Pressed

OK then let's go to a pause menu as well

Let's do the same thing so open up the pause menu

When the options button is pressed l Space those two lines again so the screen transition

And I will await that transition have

Alicia fireworks are gonna go ahead and open

About games click options that take us to the action

We need to do the same for the back button

Let's go ahead and play

Open up

The pause menu

Click options ok so options is not working and why is that so I wanted to

Brainstorm for a bit why do you think that this options is not

Ok and the answer is because

We did that change the process mode of the screen transition

So it is being affected by the Pars state

Of

The scene tree

So we need a just scroll down with the screen transition group no select

Change the process mode to always

Ok then I will heal it's open up the options menu

Space those two lines above

On the onbackpressed

Method here

So again

These two transition Lines

And then let's go ahead and try it out so if I go to my options menu

I can't click back

How many quick play

Now if I open an iPod menu at the options I should see that working just fine

Now one quick fix is I'm noticing at the main menu then yet is not working yet again

And that's because we need to change the Venue layer 22

In the main menu

And everything is good

Cyber leave we've got Oliver transitions in place

Actually let's try the death screen

So when we click restart from the victory screen

Or from the end screen here

We need to also do a transition there

Sauna Henry start button pressed

Let's do the screen Transit

As the first couple of lines in

Buttons and screen on reset button press

Transitions and left you once I'll test everything make sure it's all good

And now I've got my defeat screen I'm going to click restart

And the game is restarted so

Yep that is screen transitions