Leaning how to use After Effects

Why are we using After effects?

For the chorus of our music video, our artist was filmed in
front of a green screen so that we have a variety of shots, and also colourful surreal backgrounds are commonly used in house and dubstep music videos, and we can achieve this by using a green screen and editing it on after effects.

 How to edit the green screen / use after effects:

Since we already had our footage of our artists performance in front of the green screen all we had to do was edit it, and to do this you use after effects which is a post production editing software which works alongside final cut pro.

1. Firstly, you must cut the section of the clip you are planning to use to edit, because if you edit the whole clip, when it comes to rendering it, it will take a long time.2

2. When you know the clip you are using, you must click on the clip on the timeline in final cut pro, right click and there will be an option to replace it in after effects composition and from there it will open a tab in after effects which will allows you to start editing it.

3. Before can edit the background, you must get rid of the green background of the green screen. To do this you must click on the 'keylight' option, and then choose the 'screen colour' option and choose the colour picker to change the colour of the background, you must choose a similar bright green colour so that it will cancel out the original green background of the green screen, and turn the background black, (by doing this you are completely removing the green and making it possible to replace it with any other colour)

4. lastly, you click on the 'layer tab' and then choose 'solid' (or however you want your background to be, in our case we wanted a solid colour), in which we where able to change our background to any colour we wanted. You must drag the original video of the artist above the colour layer tab on the timeline on after effects so that you can see the artist above the background.
 we chose a pink colour because it was bright and vibrant like the house music theme, it contrasted well with the rest of the video and also it is the main colour when it comes to our artists final ancillary work.