Original subtitles

[Autogenerated] in this clip, we're going to look into the world of layers now.

Layers is another way to package your channels.

We've already talked about how red green blue channels store the

colors of data that we see in any given image.

And the Alfa Channel allows us to composite are images together using inclusion.

But now this image right here you can see over here there's a green rectangle.

What's the screen rectangle says,

is that there are additional layers in our image sequence.

Now that E xar file is a great file format.

And while is it compresses.

But it is losses.

It can store unlimited amounts of layers, layers, air created out of channels.

Channels are created out of pixels.

Pixels are created out of levels of Lou Minutes,

so you can kind of see the nested operation.

But let's take a look further into what the's channels

inside of all these different layers are,

so layers can be expressed in a couple different ways.

Now we can come up to the viewer where we have a multi layer e X

are we can go up to the viewer up to where it says RGB A is our

primary layer that we usually use.

However, this particular image has a lot more layers.

It has an ambient occlusion layer, a puddle,

their beauty depth diffuse for Nell, multi normals p map reflect shadows,

Spec.

U V's beauty motion, blur of the Roaders and other.

And let's select one of them,

such as the and being a crucial air where we go so I can select

and I can see exactly what's in each layer.

Now.

Some layers, like the Ami inclusion, are black and white.

Other layers, such as its beauty past, are full color.

Now look at the thumbnail.

It still shows the primary layer the very first rgb layer as its thumb now.

But inside this image is multiple different layers,

and we can see that by going through all these different

images for multi pass compositing.

Their shadow layers spec layers.

There's UV layers.

There are even, uh,

separate motion blurred Roeder's for a helicopter and unmotivated once.

Now, another way that we can view the layers inside.

Our image is we'll go back to RGB A,

and we're gonna use a node special node called the layer contact sheet,

not a layered contact sheet is going to read all the layers

automatically out of the file and put it into this kind of

photographic contact sheet where it's gonna lay out all the

different layers so you can see what's inside there.

And if I open up the parameters for it, I can also say Show me layer names.

If I check that off,

you can see that it prints out the different names on here and

I can actually zoom in and we can look at what we have all

throughout all the different layers.

So to recap, we have layers which are collections of channels.

The channels that make up a layer are typically your red,

green, blue and Alfa, but we can also have additional channels.

We can have channels such as depth.

We can have channels such as Body ao.

We could have Matt passes.

We can have anything that IHS scaler because what we have is RGB

creates that color that try attic collection.

Anything that is Alfa and beyond is usually collected as a single layer,

such as a master Matt or something in gray scale.

So if you need something that is additional,

that needs to be full color, such as like,

say, this body normals past.

It's better to store that in another layer than it

would be to store in another channel.

So to recap, we're talking about layers.

We're talking about the channels that make up the layers,

as well as the pixels that make up each channel.

The most important thing to understand, as we move through this course,

is that we can do anything with any given channel and

any given pixels of any given layer.

It doesn't really matter where they come from if they

achieve the goal that you're trying to create,

whether it be a color cracked or manipulation off the

imagery if it's labeled in Alfa.

But it's not an Alfa, that's okay.

It can be used and reused and transformed and modified,

and we will make some great images.

Now that we've learned the basics of channels,

let's continue to the next module,

where we're going to learn all about the shuffle and shuffle.

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