We’ve already look at a few different aspect when it comes to—THIS time we’re going to take a look at the green screen preproduction process. First up is actually setting up the screen and getting it ready for your production. Next stop we’re going to take a look at the lighting after that we’re going to take a look at some common errors and the simple fixes behind them and lastly we’re going to take a look at selling the effects.
I'm Tom Skowronski and this is Green Screen Setup. Now the first aspect to setting up the green screen is to make sure that it’s fold tight and then you have no holes or riffles in the screen so you don’t damage the effect. Now one of the main things I want to be looking for before I begin this process is the amount of space that I have available. Now this green screen was brought to us by Rosco and you could see that’s a very thin fabric yet it’s very stretchable and this is the type of fabric you're going to want to use, something that’s very flexible that you can stretch very tight. So this is a very good green screen that we have today.
I want to have enough headroom and I want to have enough room to my sides and enough room to the floor so that I'm entirely covered with the green screen. Now if we’re going to put something above my head, off the right, below me, behind me, everything is going to work because we have enough space in this area. So now that I have everything setup, a key thing that I'm going to be looking at is step number two and that’s the lighting process.
Now, when it comes to setting up the lights, one of main things that we need to stay consistent list is to make sure that the green screen is lit evenly. So both of our lights need to stand the same distance from the screen and hit the screen with the same amount of intensity. Now, we’re going to pretend that we have an invisible line that lines up both these lights so that when they do hit the screen they hit them at the same exact spot and make sure that they’re even.
Now, when you look at our small hallway of the studio you can see there's also two big soft lights right here and what those lights are going to do is light the talent and these lights are going to stick to the screen. So they make sure you pull off this set up properly you need to have separate lighting when it comes to the subject and the screen.
Step number three involves us errors that all of us we’re going to encounter and how to fix them. The first one is the distance that subject should stand from the screen. In most cases you're going to want to be a list four to six feet away from the screen so that you don’t develop a shadow that hits the screen, if this happens your effect won’t work because one side of the screen is going to be darker than the other.
Another common error, believe it or not is in fact that people were the same color shirt that they're trying to key out behind them. So if I have a green screen wearing a green shirt is probably not the best option unless that’s the desired effect I'm intending to do. Another idea you should always consider is the idea of prospective. For example, if I was shooting a subject interviewing people at the distance from the camera chances are I will need to make sure I frame them up originally when the green screen behind them with the same idea in mind otherwise if we use the standard in medium shut they will look too big and wouldn’t match locations with the background.
Now another part of this process come with how you like the subject when you light your talent you need to make sure that you're lighting them according to the background that’s going to be inserted behind them. For example, if you put your subject in the center of church chances are you're going to have a lot of big lights coming down from big windows. So you're going to want to light them accordingly or else the effect is not going to work.
The last part of this process is you need to make sure you sale the effect so when it comes to what's behind you the person in front of that needs to react to it accordingly. For example, to properly sell this effect you want to interact with the subject that’s behind you. What you understand how the simple green screen set up process works, you could finely turn on your imagination and enter the virtual world.
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