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So let's look at some of the parameters inside these nodes,
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and things that we can do to modify them.
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So if we look inside this ColorCorrect node,
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we'll see these boxes with numbers,
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and these are very easily just changed by double-clicking on them,
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and by just typing in a new number that you want in these slides.
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If you've used other software packages,
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you're pretty familiar with entering in the values that you need,
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and how that works.
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You can also use these sliders.
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These sliders will change the value of the attribute,
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and we'll see that reflected here to the left.
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So you can just use these sliders, you can also over ramp these things,
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if you want to higher than four, or on this you want to go higher than five,
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you can always select those and type in whatever you want.
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The slider will go way out of bounds,
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it'll just show you this little triangle to indicate that this value that
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we're showing here is not on the slider range anymore,
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and if you click that little triangle, it'll all come back into range.
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Now let's take a look at these little colored boxes
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on the right next to the sliders.
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This is actually a color picking icon.
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For this gamma, for example, if we wanted to color pick a value from our viewer,
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we could just click this button, and this little eyedropper will appear,
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and this little eyedropper means that we're currently in color picking mode.
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So if we go over here to the Viewer,
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and I hold down the Ctrl button on my keyboard and I left-mouse button click,
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I can drag around in here and select the color that I
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want to appear in that color picker.
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So let's say I want this blue right here,
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and you'll see the value that we have selected appears in this
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information bar at the bottom of the Viewer,
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and more importantly, it shows up in the color picker icon right here.
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Now we can also manually pick the color that we want to use
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by clicking on this color wheel here.
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If you click on this color wheel, it's going to bring up the color options,
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and from here you can just very easily use these
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sliders to select the values you want,
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you can double-click up here and enter in the values on
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your keyboard that you'd like to see,
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or you can click on this button here to bring up a color wheel.
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And from this color wheel,
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you can color pick the colors and values that you want by
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left-mouse button clicking and just sliding around.
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If you're used to the kind of color wheel that you see in Photoshop,
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you can click this button again,
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and it will give you a Photoshop style color picker that you can pick from.
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Just go around this ring to select your hue,
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and then pick your value out of the square here.
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The color picker also has these options built in at the top.
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If we click on these buttons,
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it gives us a different way to pick the color that we want.
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So there's this TMI button, which brings us TMI values,
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and a HSV button that brings us HSV values.
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TMI stands for Temperature, Magenta, and Intensity.
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It's a way of color correcting photographs and you can use
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this to pick the color that you want.
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HSV stands for Hue, Saturation, and Value,
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and they're just different ways of picking the color values that you want.
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I like to stick to RGB,
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just because those are the base color values that are usable on a computer,
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and they're the easiest to manipulate.
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So let's close down the color picker by hitting the X box,
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and we'll notice that we have picked a very specific color value,
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and this attribute over here on the left has turned into four values.
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We have a red value, indicated by this red bar,
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we have a green value, indicated by the green bar,
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and a blue value, indicated by a blue bar.
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This fourth bar over here on the right is for the amount
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of alpha that we'll have in the image,
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or the amount of transparency for that color value,
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and let's talk for a second about the difference between a four value color,
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and a one value color.
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That's what this button is for here.
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You see that it's highlighted now because we have
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four values representing our color, and if we click on this button again,
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it's going to change this value back to a one number value.
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So when you're working with color,
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it makes sense to have these four values appear,
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and to be able to manipulate these four values separate,
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because color is often different from the red channel to
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the green channel to the blue channel, but when we go to a Transform node,
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for example, if I double-click on this,
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you'll see that some values just don't even have this button,
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a rotate value, for example.
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A rotate value only has one value associated with it,
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so we don't even see that box up here.
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If we go to the scale value, you see that there's a two instead of a four,
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and that just means that this scale value can move tied together to itself,
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or it means that there are two different variables inside the Scale
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node that we can see by clicking on this button.
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And if I click on this button, you'll see that there is a value for width,
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and a value for height.
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So just know that if you see these number buttons,
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it just means that there are more attributes that are selectable that you
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can go in and modify if you want that level of control.
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In the next clip,
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we'll go in and we'll look at how we can add
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expressions to some of these number values,
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and we will take a look at a couple of different hotkeys on the keyboard
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to get fine and course control over these numbers,
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and we'll also take a look at virtual sliders.
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