The green screen was used to put the character in a background of a bedroom and he was sat on a bed, Why didn't I just take a picture of him in a room? Because 1. it wasn't very convenient to do this as there was no bedroom available at the time that I needed it and also i was able to make it look like he was floating over the bed which added to my visual SFX.
How to take the component out of its environment ready to be place in another background using green screen.
- Open After Effects and find the footage that you want to work with. (You need to make sure that the work is in the 'timeline'.)
- Click on the video in the timeline panel to work with it in the composition panel. This way, the rotoscoping you perform will only affect this one layer.
- You also need to make sure that the marker is positioned at the first frame of the clip. The magic wand is located on the top tool bar. It works very similarly to the quick selection tool in photoshop.
- Use the mouse and move the magic wand around the object that you want to select. You should notice a pink outline forming around the object that you are trying to select. This means that you image is being automatically grabbed.
- You need to make sure that you look over the frame very carefully to ensure that the entire subject is being grabbed, making sure that no pieces are being missed as this would make the footage look very ineffective.
- You then need to tell magic wand what you don't want to cut out of the frame. To do this you hold down alt and paint across the background with the mouse.
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