All language subtitles for 03_05_basic_light_setup

- [Zach] In this video, we will learn

how to create a basic light set up

which we can use as foundation

for all our Cubic Worlds scenes.

In order to add our sunlamp here,

let's click on the Window
collection, press C.

Let's call this one lights.

Then make sure that this
collection is selected,

hit Shift A, and add a sunlight.

Let's press G, Z, move it up.

And in order to see the light
of the sun and the shadows,

let's switch to the rendered
view, port shading up here

and you can also do it by
pressing and holding down Z,

move your mouse in any direction,

then this shading Pie menu appears.

And now if you hover above
any of those viewport shadings

and release the Z key,
then this will be enabled.

And in this way,

you can really quickly
switch between these.

So let's go to the
rendered view port shading

and let's rotate the sunlight a bit.

Press N, sunlight is selected over here

and then let's rotate it X 45 degrees

and then we can rotate it

around the Z axis to
rotate it around our scene.

We could also use 45 if we like.

However, in this case, let's
rotate it a bit to the side.

Now, let's press N to hide the sidebar

and make sure that the sun is selected.

Let's go to the object data settings.

Here we can change the light settings.

Let's increase the strengths
to something like 10.

I like to have it a bit stronger.

This we will, of course,
change later on because

this specific scene

we want to create here
will be a night scene.

However, the basic scene set up

we set up here should
be usable for any scene.

And even if it sounds strange

we will still use the
sunlamp in our night scene.

Now, when we look at the objects here

the shadow looks pretty good.

The resolution is quite okay,

especially if we are a
little bit further away.

However, if I now change
into the camera view,

you can see the shadow looks awful.

We have some shadow settings
here in the sunlight settings

and when it comes to sunlight

the cascaded shadow map is important.

And here we have some settings

and also up here in the render settings

we have the shadow settings

and we also have the resolution
for the cascaded shadow map,

which we can change here.

I could change this here.

This gets a bit better as you can see,

however, this is not the main issue here

because actually we don't
need to change anything

in the shadow settings for now.

We have to change something
in the camera settings.

Let's select the camera,
go to the camera settings.

And over here, we find
the clip start and end.

And if I now decrease the end value,

you can see that step-by-step,
the shadow will get better.

However, the clip defines

which areas should be
rendered in our scene.

You can see if I make it too small,

it will just cut away our scene here.

However, if we just make it slightly

above the camera border,
or maybe 50 meters

the shadow will now have
a much better resolution

because the shadow map will be scaled

from the start to the end value.

And if we have a very high end value,

of course the resolution of
the shadow will be much lower

because it's scaled
across a much larger area.

And if we make it smaller,
it is much more detailed

because it is scaled
across a smaller area.

We will learn more about
the shadow settings

and everything later on

in the EEVEE render setting section.

However, this I find pretty important

and I wanted to show you this.

And there are two other small things

I wanna show you here.

Let's select the sun once again.

And you can see here,

there's a gap between the
object and the shadow,

and we can fix this at least a bit

by changing the Bias value

of the sunlight in the shadow settings.

Let's move it down to 0.01.

It's still not fully fixed,
however, it's much better.

And if we look from further away,

this doesn't matter that much.

And the shadow is pretty harsh in general,

and if we want to make it
softer and more diffuse

we can increase the angle here.

I usually use something like five

but you can also increase it even more

and then it will get softer.

Of course we can play around

with the render settings later on

so that we don't see this
overlapping shadows here

but this should do it for now

since this one here is
not a rendering video.

So now we can see that the
shadows are pretty dark here

and I want to light them up a bit.

So let's go to the world settings

change the world color
to be a bit brighter

which helps already

and we can also tint this blue if we like.

This actually changes the
color of the background here,

but we don't see the background
in our camera perspective,

but this is also tinting
the shadows a bit.

And if you like, you could
also change the strengths here

but I want to leave this at one for now.

So, and of course this here as mentioned

will be a night scene.

So we will also tweak this value later on

but for having this as a daylight
set up, this works nicely.

So let's collapse the collections here

and now we are done with
setting up basic scene file

for basically any scene you
can create for cubic worlds.

So, and if you don't want
to do this all the time

there's of course also a preset
file shipped with the course

which has all these objects

and camera and lights set up already.

So you can just open it up,
save this under a new name

and then get started with
building up your scene.

However, I wanted to show you the setup

of the basic scene anyway.

So you know what I set up in this file

and now let's hit control
S to save this once again.

(upbeat music)