Original subtitles

So let's get started by adding some nodes to the Node Graph,

and where do we find these nodes?

Well, the first place is this toolbar on the left,

each one of these buttons is a category,

and if we click on the category, a list of nodes that are available will pop up,

and I can just select the node that I need,

and it will add it to the Node Graph down here.

Now I'm going to delete that, and with the Node Graph selected,

I'm going to hit the Tab button,

and a list of all available nodes inside NUKE will pop up here,

and I can just type the name of the node that I want,

and select it, and it will drop a node down here too.

I'm going to delete that one,

and a third place you can find these nodes is by just

right-clicking down here in the Node Graph.

All of these categories are the same categories

that you see in the toolbar panel, but they're just written out for you.

So I can go to Filter, and I can select the Blur node again,

and it will drop the Blur node down here into the Node Graph.

Now one of the nice things that NUKE does for us is if

we're down here in the Node Graph, and we hit the Tab button,

it will auto-populate with the last node we dropped down into our comp,

in this case, a Blur node.

And if I just hit Return on the keyboard,

it will add one of those nodes to the comp,

and if I hit Tab again, and hit Return again,

it will add a third Blur node to the comp.

Now something to note here is that it did not connect the Blur1 to the Blur2,

but it did connect the Blur3 to the Blur2.

So, if we have nothing selected down here in our Node Graph,

and I hit the Tab button, and I drop a node in here,

it will come into the Node Graph unconnected to anything.

But, if I have a node selected and I hit the Tab button,

and I add a node to the graph, it will automatically connect the node for us.

Another thing to take into consideration when you're working with the

nodes is if you have one of these nodes selected and you right-click

to bring up the menu of all of the nodes,

and you select a node, like a ColorCorrect node here,

it will drop the new node in your comp tree right

after the node that you had selected.

So let's say I want to put a Grade node in between

this ColorCorrect and this Blur.

I would select the ColorCorrect node by left-mouse button clicking,

and then right-mouse button clicking,

and then I would find the Grade node in the Color Menu,

and it would drop it in right after the node that I had selected.

Now let's go ahead and delete all these nodes,

I'm going to left-mouse button click and just

marquee drag around everything here, and then I'm going to hit the Delete button.

Now I deleted that viewer on purpose,

because that's something that happens to beginners a lot,

and you'll notice that the Viewer went away up here in the Viewer panel,

and that's not a big deal, all we have to do is go back down into the Node Graph,

select it, and hit one on our keyboard, and it'll bring our Viewer back.

Now let's start working with our first image.

To bring an image into NUKE, you need to use a Read node.

So with the Node Graph selected, I'm going to hit the Tab button,

and the Read node pops up here at the top because

it knows we use that node a lot.

So I'm going to click on it, and it brings me to a file browser.

Now I'm just going to select the image that I want to use,

in this case, the CGEarth.

jpg image, click the Open button,

and it will drop a Read node with that file associated down into our Node Graph.

And you're thinking to yourself, well, where is the graphic?

Where is the image that we just brought in,

the Viewer's blank,

and that's because the Viewer node over here isn't connected to this image yet,

and we can do that just by dragging this arrow over to this

node and releasing the left-mouse button,

and it's connecting the Viewer now.

So, now we see what is in this node up here in the Viewer.

Another way to do this is I'm just going to disconnect this Viewer by clicking,

left-mouse button clicking on this arrow,

and by releasing, which disconnects the Viewer.

I'm going to select the node that I want to see,

and hit one on the keyboard,

and that's going to make the view of that node available up here.

Now let's perform our first operation with the Blur node.

So I'm going to go back down here,

I'm going to left-mouse button click to select my image,

I'm going to hit the Tab button, and I'm going to type Blur into this box,

and select Blur from the menu, and it brought a Blur node in,

and that Blur node is connected to our Read node,

and it's even connected the Viewer to our Blur node.

So,

what we're seeing up in the Viewer panel right now is

actually the Blur and its effect on our image,

but you're saying to yourself, it's not blurry.

Well that's because the property of this Blur node by default is set to 0.

You'll see the 0 over here in the Properties panel,

and if I just take the slider, and raise that value up high,

you'll notice that the image gets quite blurry,

and that's exactly what we're looking for.

Congratulations, you've put together your first comp tree.