All language subtitles for 04 - How to use modifiers in Blender

- [Instructor] In this video,

we're going to go ahead and modify some of the objects

that you've made.

Don't worry if you don't have access to the Exercise Files.

You can go ahead and just make some new objects

and follow along.

Let's go ahead and click on this cube back here.

On the right side of your view,

you can left-click and drag

and get a little bit more real estate if you need it.

And then left-click on the blue wrench.

It's called Modifiers.

The Modifiers tab is going to be one of your favorite places

to play with inside of Blender.

Let's go ahead and left-click on Add Modifier.

And you'll see that there is a new drop-down.

Each of these have little sections

where you can go ahead and add different kinds of modifiers.

The Edit category is a little bit more advanced.

This lets you move the guts of, say, one object to another.

For example, you can move the UVs,

you can make vertices stick to each other,

you can add a mesh cache, et cetera.

Under Generate, you actually generate new geometry.

Let's take a look.

Go ahead and left-click on Array.

At first, you may not have noticed anything change.

If I come over here where it says Factor X,

I can move this

and see that we've actually added a new object.

And I can click the count up a bunch

and see that we're pushing out even more objects.

Now, officially, this is just a single object.

There are no 20 more that have appeared here

inside of my outliner.

These all exist within the same object.

And if I go into Edit Mode,

I can actually only edit just a single object,

none of these.

But take a look at this.

I'm just going to left-click and drag these two vertices,

click on Move, and move them around.

This modifier is generating instances of this object

on the fly.

An instance is like a cheap copy.

It's just going to copy the original

and shift it over a little bit.

It's a really useful tool if you need

to make a lot of stuff very quickly.

The one upside or downside, depending on how you look at it,

is that they will all be exact duplicates

of this original object.

Let's go back to Object Mode.

All modifiers allow you to apply them.

So I can left-click and go to Apply.

Now, if I come back up to Edit Mode,

I can see that if I left-click

just on a single vertice here,

none of the other ones are moving.

I can undo all of those selection changes,

and I can see what's happening.

Every one of these vertices is now unique.

All of them are in fact unique.

Because it is no longer a modifier.

It's no longer becoming an instance.

They're all just unique.

Let's go ahead and undo that with control + z

and get back to the point where you can see your array.

You can drag this back a little bit.

And let's go and add another modifier.

Generate and let's go to Subdivision Surface.

Now, this is quite cool.

I can go ahead and kick this up a notch.

And you can see that I'm smoothing this object out.

You can actually stack modifiers.

So let's go ahead and click on Add Modifier,

Generate, Subdivision Surface again.

Now I want to do something different.

I'm going to scroll down,

and you see this little dotted area here?

You can left-click and drag and move modifiers up and down.

This is important.

It's known as the stack.

Things evaluate from the top all the way down.

Since I moved this new subdivision to the middle,

I want to go ahead and left-click on Simple.

You can see that my objects completely change

in their shape and size.

I can left-click and drag this down now,

and you can see I get a completely different look.

That is because, like I said before,

the modifiers stack evaluates from the very first thing,

in this case, an array, to the next thing,

which is a smooth Catmull-Clark subdivision of two,

to this next thing, a subdivision this time of simple.

If I move this up here,

we're going to get a completely different look.

The way modifiers work at first may be really confusing.

But modifiers are a huge, huge part of Blender.

So feel free to play around

and see what other cool combinations you can come up with

inside of Blender.