All language subtitles for 02_08_asset_creation_and_troubleshooting

- [Zach] In this video,
let's have a quick look

at the general asset creation workflow

and what to take care of.

First of all, when we have our
asset library connected here,

we find the cube bottom and cube center.

If I drag these two into the scene here,

they both look kind of identical.

There's only one difference.

On the cube center, we have
the origin at the center

and here we have the origin at the bottom.

And these are basically the two setups

which we will use most often

because depending on where the origin is,

we can scale and rotate
the object differently.

For example, if I scale it here

you can see it will go down to the origin.

Same with the rotation.

And most of the objects,

which will stand on the ground later on,

will use the origin at the bottom.

Because if I now press alt
G, to recenter the position,

it will stand on the ground.

The red line here automatically.

If I select the cube center,

press alt G, it will be
somewhere here in the middle.

Which is not really what
we want in most cases.

And this also is important later one

for animating the objects,

because we will create
this pop-up animation,

where the objects basically
pop up from non-existing

to be scaled up to its original size.

And if we have the origin
here at the bottom,

it looks like if these objects
are growing out of the ground

and if the origin is at the center,

it looks as if they are just popping up

from somewhere in the air, for example.

So let's imagine we want
to create a simple tree.

Let's remove this one here.

First thing we do when adding something,

let's press F2 and call it tree.

So we, re-name our objects.

And most of the time
we also put the objects

into collections, so let's
create a new collection

and call it props for example.

Then put the tree inside.

Then the next step is
usually changing the color.

Here we have our cubic world shader,

which we have discussed before.

And here let's simply
give it a brownish color.

Something like this.

And then it's about scaling
and changing the cube.

Because in general, we will
only work with cube-like shapes,

which we like stretch around,

move around and change the proportions.

But we will basically
never add a cut in between

or anything like that.

So for example, let's scale it down a bit,

then scale it up, to have the trunk.

Then let's duplicate this.

Press S,

scale it down, make it maybe smaller

and put it somewhere here on the side.

And if we change this to the
local transform orientation,

I can simply press S for
scaling, Z along the Z axis

and then it will use the local axis.

So let's keep it very simple here.

Let's for example place
another branch over here,

from the top fuel let's press
R to rotate this a bit around,

so it looks not too straight.

And then let's maybe
shift + D duplicate this.

Press S.

Scale it down along the Z axis

and then press S and shift Z,

to scale it along X and
Y and exclude the Z axis.

Something like this.

And then let's add the
cube center here, alt G.

Move it to the top here.

Change the color into something greenish.

Maybe let's lower the strength
of the bottom gradient,

press F2 and call it tree
Leafs, something like this.

Then shift + D, place it somewhere here

and shift + D, place it
somewhere on the other,

brunch here.

Maybe let's move this up a
bit or change the rotation.

Maybe let's scale this down a bit

and maybe let's move these
two, down a little bit.

So, now we have this basic tree.

However we are not done yet.

Because if I had just
want to pick this tree

and move it around, I
have to select everything,

move it around and especially
if I now would duplicate this,

we would have a lot of objects.

So what I usually do, is
joining these objects.

So I select all of the objects.

And as last one, usually
one object in the center

or which is here on the ground.

And then I press control J

to join these all together to one object.

And let's undo this one more time.

There's one thing which happens
when we are joining objects.

And this is that we are
losing the bottom gradient,

on each individual cube.

Because the bottom
gradient will be generated

on the entire object.

So here now you can see,

we have this button gradient,

maybe let's increase the intensity.

And now if I join all these
together, it will disappear

and now, from down here
it will be stretched

across the entire object.

This is something to keep in mind.

And the other thing, that
you have to keep in mind

which is very important,

is that we are altering the
scale because most of the time,

we are changing something
here, in the object more.

That means we are like scaling something,

along a certain axis
and so on and so forth.

And then you can see the
scale value is changing.

Imagine it like this.

When you add a new object to your scene,

this blender remembers
as their default scale,

which is one, one, one.

However, if I know it
changed anything here,

like stretching this along
the Z-axis we are altering

the scale value here.

And although this seems to
be not really a problem,

this can cause a lot of problems later on.

One example, which is not really important

for this cubic world scene

because we will never
really use a modifier.

However, if I would add
this bevel modifier here,

you can see, that although the amount

and the thickness of this bevel,

is set to maybe 0.1 meter,

here on the side, it is correct.

However, along the Z-axis,

it is scaled by the factor of four.

And whenever we change
the scale of an object,

in object mode, we have to apply this.

That means we tell blender okay.

This stretched version of the object,

is now the new default
scale of the object.

And it's very easy.

Select the object,

press control A and click on apply scale.

Then you can see, it will
be reset to one, one, one

and the bevel in this case,

will also be displayed correctly.

And this does not only have
an effect on modifiers,

but also on tools in edit mode or later on

when we are using our
specific animation workflow.

This can cause troubles.

So really get used to, hitting control + A

and applying the scale.

So this, now we also
need to do for the tree.

You can see the scale
is not one, one, one.

So let's hit control
A and apply the scale.

And now was the origin down here.

The tree will always stay on the ground.

For example, if I hit shift + D,

right-click, press G to move it around

and then shift Z to exclude the Z-axis.

I can move it here on the ground.

And now, since we merged all
these objects into one object,

we can still access these in edit mode.

That means in edit mode,

if I press L over one of these elements,

they are still separate mesh elements

but they are all merged in one object.

That means basically one container.

That means as long as we
are keeping the shapes here,

we can also press shift A

and add another cube
directly inside edit mode

to add a new cubic shape here

or we just grab something
which we have already.

with L and then shift + D,

duplicate it and place it somewhere here.

One little note here,
when you add something new

like a fresh cube.

Maybe place it somewhere down here.

This will miss the specific UV map,

which we need for our cubic world shader.

If you haven't watched the
bonus video, where we created

the cubic world shader,
what you always need to do

when you add new elements,
select everything,

press U and click on reset
in the UV mapping menu.

Then the UV map will be reset.

And then we have the nice
gradient here on the new elements.

In edit modes, we can of
course shape our cubes,

if we like for example, taper this a bit.

Something like this,

but more than that, we won't do.

So we don't add in new
loop cuts for example,

because then, if I would

reset that UV map, we
would have the gradient.

If I make it stronger,
here across the trunk.

Which looks not so nice in my opinion.

So we will really just
work with this cubic shapes

and scare them around.

And the last thing we can do here,

let's randomize the colors a bit.

So let's set random two one,

copy of the base color, paste it here.

And maybe altering it a bit.

Same for the Leafs,

random set one

and change the green tone a bit.

And then each time you
are duplicating a tree,

it looks a bit different.

Yeah, and what you may be also noticed,

when you're joining different objects

with different materials,

they then will be just listed over here.

So this one object now has two materials,

but we can add even more.

If I go to edit mode, for example

click on the plus and let's
create a new material.

Let's tape base color zero, zero, two,

and duplicate this.

So we have a new material.

Maybe let's make it, a
different darker brown tone,

something like this.

Then I simply can select one element here.

And with the materials
selected up here, hit assign.

Then you can see, and now
has this dark Brown color.

And I could even go in here.

And for example, select this,
select this new color here

and hit assign to assign
this to this element

which was assigned to a
different material before.

Yeah and these are the
most important things

you need to know, in
order to create assets

and to fix some issues.