All language subtitles for 2. Understanding Node Parameters and Color Controls

So let's look at some of the parameters inside these nodes,

and things that we can do to modify them.

So if we look inside this ColorCorrect node,

we'll see these boxes with numbers,

and these are very easily just changed by double-clicking on them,

and by just typing in a new number that you want in these slides.

If you've used other software packages,

you're pretty familiar with entering in the values that you need,

and how that works.

You can also use these sliders.

These sliders will change the value of the attribute,

and we'll see that reflected here to the left.

So you can just use these sliders, you can also over ramp these things,

if you want to higher than four, or on this you want to go higher than five,

you can always select those and type in whatever you want.

The slider will go way out of bounds,

it'll just show you this little triangle to indicate that this value that

we're showing here is not on the slider range anymore,

and if you click that little triangle, it'll all come back into range.

Now let's take a look at these little colored boxes

on the right next to the sliders.

This is actually a color picking icon.

For this gamma, for example, if we wanted to color pick a value from our viewer,

we could just click this button, and this little eyedropper will appear,

and this little eyedropper means that we're currently in color picking mode.

So if we go over here to the Viewer,

and I hold down the Ctrl button on my keyboard and I left-mouse button click,

I can drag around in here and select the color that I

want to appear in that color picker.

So let's say I want this blue right here,

and you'll see the value that we have selected appears in this

information bar at the bottom of the Viewer,

and more importantly, it shows up in the color picker icon right here.

Now we can also manually pick the color that we want to use

by clicking on this color wheel here.

If you click on this color wheel, it's going to bring up the color options,

and from here you can just very easily use these

sliders to select the values you want,

you can double-click up here and enter in the values on

your keyboard that you'd like to see,

or you can click on this button here to bring up a color wheel.

And from this color wheel,

you can color pick the colors and values that you want by

left-mouse button clicking and just sliding around.

If you're used to the kind of color wheel that you see in Photoshop,

you can click this button again,

and it will give you a Photoshop style color picker that you can pick from.

Just go around this ring to select your hue,

and then pick your value out of the square here.

The color picker also has these options built in at the top.

If we click on these buttons,

it gives us a different way to pick the color that we want.

So there's this TMI button, which brings us TMI values,

and a HSV button that brings us HSV values.

TMI stands for Temperature, Magenta, and Intensity.

It's a way of color correcting photographs and you can use

this to pick the color that you want.

HSV stands for Hue, Saturation, and Value,

and they're just different ways of picking the color values that you want.

I like to stick to RGB,

just because those are the base color values that are usable on a computer,

and they're the easiest to manipulate.

So let's close down the color picker by hitting the X box,

and we'll notice that we have picked a very specific color value,

and this attribute over here on the left has turned into four values.

We have a red value, indicated by this red bar,

we have a green value, indicated by the green bar,

and a blue value, indicated by a blue bar.

This fourth bar over here on the right is for the amount

of alpha that we'll have in the image,

or the amount of transparency for that color value,

and let's talk for a second about the difference between a four value color,

and a one value color.

That's what this button is for here.

You see that it's highlighted now because we have

four values representing our color, and if we click on this button again,

it's going to change this value back to a one number value.

So when you're working with color,

it makes sense to have these four values appear,

and to be able to manipulate these four values separate,

because color is often different from the red channel to

the green channel to the blue channel, but when we go to a Transform node,

for example, if I double-click on this,

you'll see that some values just don't even have this button,

a rotate value, for example.

A rotate value only has one value associated with it,

so we don't even see that box up here.

If we go to the scale value, you see that there's a two instead of a four,

and that just means that this scale value can move tied together to itself,

or it means that there are two different variables inside the Scale

node that we can see by clicking on this button.

And if I click on this button, you'll see that there is a value for width,

and a value for height.

So just know that if you see these number buttons,

it just means that there are more attributes that are selectable that you

can go in and modify if you want that level of control.

In the next clip,

we'll go in and we'll look at how we can add

expressions to some of these number values,

and we will take a look at a couple of different hotkeys on the keyboard

to get fine and course control over these numbers,

and we'll also take a look at virtual sliders.