I'm gonna switch over to this third icon here, where it says matte. So, I'm gonna take this delta keyer, and there are a few different things that I can do here. That means that we're going to have a key that just does not look good. Now, ideally, you want this to be perfectly black and perfectly white. So, we want this image to be on anytime that there isn't a green screen, and off for everything that was green. So, you can kind of think of it as white is on, and black is off. So, the white in a matte is completely opaque, and the black is transparent. And basically, what that works is it's a channel in an image that controls the transparency. Now, if you do some compositing, you'll start to see these kind of black and white images. And that will bring up our black and white image.
And then, clicking on this viewer and hitting A. We can do that by hitting 1 on the keyboard, and bringing it up over here. And we can get a little bit better view here if we look at the transparency channel of this effect. But we also have a little bit of noise and kind of weird stuff happening here. Then, we can see that, yes, it's cut him out of the background. Now, if we were to select our background and change the color here to, I don't know, like orange-ish. Just because that's where we are really gonna want a good edge. Now, what I'm gonna generally wanna do is get pretty close to our talent here. I'll click and drag this eyedropper, and as I sample the green screen, we can see that it kind of gets rid of it. Now, nothing's happening because we haven't set any of our controls here in the inspector. And we'll run our media in through that effect. Delta keyer is pretty much what you use to get rid of green screen here in the Fusion page. Okay? So, I'm gonna use an effect called delta keyer. A key is just the term for selecting a certain color. Remember, that brings up our select tool menu, and I'll type in key, K-E-Y. So, I'm gonna select media in, and hit SHIFT space bar. And before we can see any of that though, we need to get rid of this green screen. Now, nothing's really changed except for, we have a little bit of space between our background and our merge, to be able to add whatever we wanna put behind him. Ge it over our background, and take the merge in put that into media out. So, I'll take my background node like this, and I'll disconnect my media in. So, I'm gonna start out with a background. So, the first thing that we're gonna do is kind of put this on the upper layer, because really, what we want to do is put a background behind this guy. He's very excited to be here wearing a suit.
So, I have my green screen clip here of our businessman, and I'll switch over to the Fusion page, and he is very excited. That said, this is a pretty easy example, and you can at least kind of get an idea of the workflow of kind of how things work inside a Fusion when it comes to green screen. There's usually quite a bit of work that it takes to get your transparency just right. It's not quite as easy as just clicking on green, and everything looks great. A green screen effect is very complicated most of the time. One of the things everybody always wants to do in Fusion is a green screen effect.
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