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In this movie we are going to start with this dancer. I am going to cut him out of his background using a process called Keying. Then we'll change him a silhouette from over a colored background and tile him all over the screen. And we are going to do this all using Filters. So first off let's see what we have got. Hit F5 to open up your Layers tab, then you'll notice we have the Breakdancer and we have a green rectangle underneath. Then turn the rectangle off for right now. And turn the dancer back on. So like I said, we are going to Filters so open the Library, Cmd+2 and move to the Filters section, and like I said we are going to use the process of Keying to cut him out of the background.
So let's go to Keying and we are going to use a Luma Key, and the reason we are using a Luma Key is it cuts out the image based on the luminance and luminance is basically brightness. So White is a 100% bright. Black is a 100% in the opposite direction. So Luma will cut out anything that's white and that's the perfect thing to do for this specific clip. So go ahead and drag and drop it right out on to your clip. Now the thing I love about the Luminance Key is the fact that there really aren't that many options.
Hit F7 and pull up your HUD. Then you notice the first option I could key out brighter, or I could key out darker. Well since I wanted to key out the white, I chose brighter. I keep using this term Key. Keying is the process of cutting something out and in order to see what's getting cut out we have to look at a matte, and the way you do that, you go up under color here, and you look at the alpha channel. And alpha channel is the matte that's generated by the Key. So whatever is white on your matte is being allowed to show through and whatever is Black is being cut out.
So let's go and change that back to color. And like I said we want to change him into a silhouette and we'll put him over this background. So let's turn our background layer back on so we know what the final comp is going to look like. And now let's use Tint to change him to a silhouette. Click in the search field and just type Tint. And if you click on Tint, you'll see it adjusts the overall using the color you choose. So ahead and drag and drop that right out on to your breakdancer.
And you notice right now its set to Brown. So right click and just set it to Black. He looks pretty good but I would like him to be a little more vibrant, so we need to adjust the Luma key. Go ahead in your HUD and go to the Luma key in your pull down menu. And adjust the tolerance and basically the tolerance is just how strong of a Key is being pulled, again, based on the brightness. So there that looks wonderful. Now we are just going to take it a couple of steps further.
I want to tile him all over the screen. So let's go back into our Filters and look up Tile. There we go and the Filter I really want to use is called Kaleidotile. So have got the Tile here, that's pretty good but I want something a little more psychedelic. So there's Kaleidotile, go ahead and drag and drop it in your Layers tab right to the Breakdance layer and let go and you'll notice everything turns black. And that's because Kaleidotile when you apply it has this little selection box and if you drag this over different parts of the image, or scale it, it will show you different parts of the image.
So you notice what's going on right here. I'll go ahead and hit spacebar and see what we have got. Well that's close but I think he's a little too big. So what I would like to do is actually scale him down. So I am just going to pause for a second and select the Breakdance layer, go to my Inspector and we'll just scale him down. Hit the spacebar again, and there's a problem with this and basically the problem is the fact, the Kaleidotile filter is only taking up the size of that individual layer and I know that because I see this border right around the outside of that edge.
Go and drag your Kaleidotile filter up to the main group, and this will apply to absolutely everything and now you notice the edge of that Filter is outside of my composition. And now let's go ahead and resize this box for this filter and move it to an area where's its going to show the dancer. Deselect everything and hit the spacebar. So there we go, a creative way of using Filters. A Luma Key and Tint to one Layer and Kaleidotile for the whole thing and we have got one pretty fancy background.
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