Unreal Engine 5 was just released this morning. And it is a game changer. The computer
graphics industry will never be the same. Everyone from game developers to movie
makers are excited to start using Unreal Engine five. But you're probably wondering
why Unreal Engine 5 is such a big deal. Well, in this video, I'm going to go over five reasons
why Unreal Engine five is a game changer. Number one is Unreal's brand new lighting system
called Lumen. Since the start of computer graphics developers have been trying
to simulate global illumination. Essentially, global illumination is bounce
lighting, which is the extra light that is created from light rays
bouncing off of different surfaces. For example, if we have a room
with just one light source, which is the window, it doesn't make sense
for the room to be pitch black. Instead, light rays from the window
will bounce off of the floors and walls to illuminate the entire room
indirectly. Movies have been able to use bounce light for a while now
through the process called path tracing, but it can take a very long time
for just a single frame to render. Sometimes these renders can even last
for hours. Obviously, this makes it hard to use
for video games that require 30 to 120 frames rendered every second. To get around this in the past
game developers have faked global illumination
through a process called light baking. Essentially, all the path tracing
was rendered before the game is played. This render is then stored in a texture
called a light map, which is then overlaid on top of the world to make it look like
light is bouncing around in real time. When in reality
it's just a pre-rendered texture. But now the problem is
that global illumination is not real time. So as soon as I make a change,
our light map is no longer in sync. So we have to rebake the entire environment all over again,
which is time consuming. This is why Lumen is such a big deal
since it's true real time global illumination. So right here we have the same scene but Lumen is turned
on, so there is no baked lighting. And notice how as soon as I start to move the chair
around the light updates in real time, we can even play with how much light
is coming through the window dynamically. So let's add in a cube and we can scale this up and slowly start to block off
all the light in the room and then notice. As soon as I move this, we start to seep
in more and more in the light. And this room is entirely dynamicly changing its visibility
because of all of that balanced lighting, which was near
impossible and unreal engine for the city. Sample shows off Lumen pretty well. I can rotate my sun
and watch all those buildings illuminate each other
through their balanced lighting. Even windows on buildings
now give off light For example, if I grab this car
and move it infront of the the window, it starts to cast
soft shadows onto the concrete. Reason two is Nanite Every object you see in CGI,
whether that be in video games or movies, are comprised of tiny flat
planes of geometry called polygons. And generally, the more polygons
you have in a world, the longer it takes for a computer to render,
which can slow down video games. This is why games use a system
called a level of detail or LOD for short Basically,
the further away an object is from the camera, the less polygons
it will use to render that object. This makes games run faster since there's
less polygons that have to be rendered, but it's a time consuming process
to create all the abilities Nanite changes this at a simple level. Nanite allows for dynamic level of detail. This means you can have an object with
millions of polygons without any LODs because those polygons dynamically deform, lowering the total
amount of polys on the object. This allows for high poly assets made
for movies to be used in video games now. I think it's best to show an example
of why this is a big deal. So right in front of you is a donut. I made in unreal engine and this donut is made up of about 30,000
different polygons. Here is that same exact donut,
but copied and pasted over 100,000 times. And what is insane is
that we're not faking any of these donuts with textures or billboards
All these donuts are individual objects that we can move around, rotate and scale. Maybe one donut is bigger
than all the others. A more practical example is a city sample,
which is made up entirely of nanite objects. We can see how nanite works by coming up
to let down an entire visualization and triangles. So every color you see
is an individual polygon, and we could see more polygons
pop in the closer we get to on the buildings
or to any of those objects. For example, this water tower. If I go away,
we can see that the water tower loses polys, but when I come up close,
it gains more and more polys. Number three is the Megascans
asset library. What is the point of great features
like nanite lumen? If we don't have any objects
to populate our world with. This is where mega scans can help us. MegaScans is a library of over
16,000 assets ready to be used automatically in Unreal Engine
five These assets include 3D objects, plants, material surfaces,
modular objects. And recently
they even added customizable trees and all these objects are photorealistic
because they're scanned from real life. The team of mega scans
have flew all over the world, from Japan to Iceland,
scanning and capturing different objects and surfaces
using a program called Reality Capture. These scans are then converted
into 3D objects and imported into Unreal. They have been used in movies and TV
shows like The Lion King and Mandalorian. What's amazing is that all these assets are free
and built into Unreal Engine five. By default, you get mega scans
all you have to do is click on the ADD button
right here and select Quixel Bridge Now we get access to those 16,000 assets. So, for example,
what if you want a rock from the desert? Well, I must select 3D assets
to filter for objects and type in desert and then rock. So we see all the different assets
that we can choose from. Let's say, for example,
maybe I want this asset right here. All you have to do is drag it
into your world, wait for it to download and now we have that object ready
to move around and place in our world. They even give us a lot
of customizable features, such as changing the Color of the Rock, or we can even make the rock
a lot shinier. So let's get a better angle. So the sun is hitting. That's right here. By adjusting It's Max Roughness. So maybe this rock is really wet,
so it's a really shiny. In fact, this environment I created
is almost made up entirely of mega scan assets
from the houses to the foliage all the way to the cliffs
at the very far back. They are all from the library. Also, the desert from the valley of the ancient demo
is entirely made up of megascan Sets. You can pretty much click
anywhere on the screen, and odds are you have selected a real life object
that was scanned from the deserts of Utah. Reason number four is metahumans
Humans are one of the hardest assets to create for games and movies, especially if you're trying to create
realistic humans. It is one of the most expensive parts
of any production This is why metahumans is amazing. It allows us to quickly create
realistic humans in minutes, and the application
runs on your computer browser so you don't need to download
Unreal engine to use it. It also comes
with a bunch of different preset humans. This is one of the preset humans. You could see that we have just
a bunch of options at the left, right here We could go in and sculpt,
maybe give him a bigger nose and also raise the cheekbones,
and then we could go into the head. Give him different hair
and maybe even add in a mustache and of course, change the proportions. Maybe make him a little bit skinnier. Of course,
we could continue using metahuman creator but what if we want to bring the human
into UE5 Well, it's as easy as opening up bridge
and going into the metahumans tab and under my metahumans,
you see, all the humans you have created, all you to do is simply download that
character and imported into your game. Once you do have it imported you just have to find where he is
under metahuman and simply drag it out. It is that easy now to create
a realistic human for games and animation. But we're not just limited
to a static human. We can animate pretty much everything
about this metahuman, including his face. So, for example,
what if you want to move his mouth down? Just grab it like that. Move it you can also move his eyes
so you could see him looking in game And keep in mind, all of these are animatable,
so you could create an entire animation. We can even change his bodies. Posts so we could raise arms
and maybe try to animate him waving. If you are good with animation, The Matrix Unreal Engine five demo is a great
example of the power Metahumans. All the humans, from the player character
to the pedestrians walk in the street are metahumans. Even Keanu
Reeves is a customized metahuman. Instead of using the Metahuman
Application Artist scanned Keanu's face and then use the metahuman technology
for the materials rig in an animation. So if you are a technical artist,
you can still make use of metahuman
in a more traditional pipeline. You're not just limited to
what is possible. The Metahuman editor number five
is surprisingly unreal Engine four. You probably noticed that what you see on the screen right
now is not unreal to five. This is a demo of Unreal Engine four that was released in 2012,
which is a decade ago. The reason why I'm showing
this is to demonstrate that UE4 projects can easily be converted
into UE5 projects. Now this is the same demo,
but running Unreal Engine five making use of all the new features
such as Lumen and nanites. So it looks a lot better than it did
in 2012. The reason why this is important
is because all the content created for UE4 is still relevant and works for you UE5
where there be tutorials or asset backs. There's already an existing
and thriving unreal ecosystem. For example, there are over 10,000
different aspects you can buy right now on the unreal marketplace, and almost
all of them can be converted to UE5 Not to mention,
a lot of these assets are free and new. Free content is being added every month. Also, almost all tutorials created for Unreal Engine
four still applied Unreal under five, which is great for me because that means
all my past videos are still relevant For example, if you want to learn
how to create a donut, an unreal engine, then all you have to do is watch this unreal engine for video
and it still works for Unreal Engine five. And if you want to learn unreal engine 5 then luckily you are in the right place, I have a free five hour long beginner
tutorial which you can watch right now. Link in description below. We go over everything
from the basics of unreal to creating a beautiful environment
like the one you see right here. Feel free to check it out
if you are interested in learning unreal. Thousands of people have already completed
that course and have started their unreal journey
through it. Also, since UE5
has now officially released, I have a bunch of content videos
and assets planned for this channel. So if you're interested in it
that make sure you subscribe and pressed the Bell
icon for notifications. With all that being said,
I hope to see you in future videos.
