- [Instructor] Okay, now, notice that,
as I move the size of my viewer window,
some icons are appearing and disappearing, okay?
So I want to show you these guys now, so if you've got
your viewer scrunched down, they'll be gone.
So just pull them out until you see them up here.
Okay, the first one is your title save,
so I can turn that on, or action save.
You can have them both on if you want,
and there's the format center right there.
Now, these are title, action, and format
relative to the format of the shot you're working on.
So I'm going to turn all of them off.
Now, here, this guy here are your masks.
You get to choose different kinds of masks
and you get to choose the job size.
So if I say I'm doing a 16:9 and then I turn on the lines,
I'm going to get lines only for a 16:9 mask.
I can change to a different show of format,
let's say super 35, 2.35 to one, there you go.
And I can also change the type of display
from lines to half mask or full mask.
So we'll go back to none.
The next button is the clip warning.
This warns you that you have clipped data
if you're working on a video job,
that means code values above 1.0.
By default, it's turned off.
So let's turn it on by saying, yes,
I want you to warn me about the exposure.
So you start to get this little pattern
which warns you about bad areas.
Now, some people call this a zebra and I'll show you why.
Let's tap up our brightness, there we go.
Okay, now you can see, there's the zebra pattern.
This is sort of a standard concept in the video world.
Put that back to where it was, close this,
and turn off that warning.
Okay.
Our next key is the proxy key.
Proxy means to switch the job to a lower resolution
which is faster to process.
This is terribly helpful
if you're working on a high-res job
or you have a very thick composite.
So let's see what that really does.
I'm going to push in on the tail of my CGI jet here.
What the proxy will be is defined in the project settings.
By default, it's half resolution.
So if I switch to proxy, boom, see?
I get jaggies 'cause everything is at half resolution.
Turn that back to base resolution.
Rehome the viewer.
This is an interesting fellow here.
This is the full frame processing feature.
Let me explain what that means.
I'm going to switch over to this blurry node here
and push into my jet.
Now, by default, Nuke only processes
what you see in the viewer.
So if I turn up a big blur here
and then if I pause Nuke, this little red guy right here
means do not process anymore,
I switch the viewer back to full resolution,
you can see that I've only blurred that part of the jet.
Now, let me do that again.
I'm going to undo this and undo the pause.
I'll do the exact same thing.
Only this time, I'm going to turn on full processing mode.
So you can see it turns red when it's on.
What that means is it's going to process the entire frame
no matter how much I'm seeing in the window.
So this time, I'm going to blur the nose,
pause it again, so it won't refresh,
and then rehome the viewer
and the entire jet has been blurred.
So I'll unpause that, turn off my blur,
and I'm going to turn off the full processing.
So you can see me use the pause button here
which can be very handy, here's what that's for.
I'm going to switch over to my composite here.
Nuke's default behavior is to reprocess the entire frame
every time you adjust anything.
So if I adjust the blur size,
it recomputes the entire composite.
Well, if you've got a large composite
or a high resolution frame, every time you move a parameter,
you're going to sit there while it's processing.
So, what we can do instead is I can pause it,
change, change, change, change, change,
and then I can come over here and hit the process button.
Boom.
And it'll just refresh the frame right now.
I could make some more change, change, change, change.
And then recompute.
Of course, if I turn off the pause button,
it's going to recompute it every time I touch it.
Okay, this little guy here is the region of interest.
When I turn that on, it limits the processing
to only inside the region of interest.
Let me make this a little smaller
so we can make this guy as small as we want,
using the center point, we can move it around.
Okay, so I'm going to go to my blur node here
and say give me some blur.
Whoops, it only blurred that part of the picture
because I have enabled the region of interest.
I can pick up my region of interest, drop it over here,
and it'll process that part of the picture.
Turn it off and the whole picture will get processed.
Put that back to default.
Another processing time optimization feature
is the down-res right here.
Let's push in
to the viewer here.
What that does is you can think of this
as forming a temporary proxy.
If I click on one, one-fourth,
that means only one quarter of the pixels
are being displayed and processed.
Now, this is to speed up development
in case you have a big 4K or 8K plate
or it's a real thick composite.
So, you can then save yourself a lot of processing time
by turning that on and then just put it back to 1:1
and you're ready to rock and roll.
Now, earlier, you saw some of these icons disappear
when I resized the viewer.
Watch this, I'll shrink it, see them going away?
So the question before the board is where did they go?
They go over here in the overflow menu.
So everything that disappeared over there is now over here.
Course we'd like to see all of our toys all the time.
Now let's take a look at the second row down here.
Now, this first adjustment here is a gain adjustment.
It gains up the viewer, there, make it much brighter
or gain it down to make it darker.
Here's the key point.
This gain does not affect the original image.
This is only as seen in the viewer.
Now, this sort of allows you a magnifying glass
into the color space.
The other thing to know about this is
that Nuke remembers your settings.
See this 0.12?
This, if I click here, puts it back to default of one.
But it'll remember my last setting and there it is.
So back to default.
Over here is the same idea for gamma.
Gamma up, gamma down.
It, too, does not affect the image data,
only affects the presentation in the viewer,
and it also, one click here takes it back to default,
and it also remembers your last number, like so.
Now, moving over here, this is the 2D to 3D popup menu.
This takes the viewer into the 3D world,
which is very scary, but we won't be talking about this
until we get to our 3D portion in the course.
So back to the 2D viewer.
Remember our data that we had
down below the viewer down here?
Well, this little red eyedropper here
will hide and show that.
Hide, if you need some more screen space,
show, if you want to see the data.
After all of this, we still have several more videos
coming up to learn about
the rest of the viewer's capabilities, so let's take a look.