Green Screen Practise

How To Use the Green Screen and Change The Background When Editing.
.The first thing we did was to clear the space in which we were to work and to set up the green screen and props for the music video.
.When we had our actors in place and the song and props and technical equipment ready we began to film the footage. Because we had three cameras working on set (two on a tripod and one on a fig rig) we were able to use three different sets of footage from different angles in our video.
.Once it was all filmed we packed all the equipment away and returned the room to the way it was before.
. We were placed in our media groups for the editing part and because there were 3 different memory cards and 4 different groups we had to take turns in uploading the footage on to Imovie.
. When all the footage was uploaded and optimised we began to edit it on Quick Time Conversion.
. We chose a background from Google to replace the green screen and used the Chroma Keyer effect. With this we selected the pipette tool, and to bring more of the background forward I needed to press the shift key as well as the pipette tool. This has to be done to each of the sets of footage so that the audience can still see the performer as well as a non-green screen background.
. We used the "Peeling of the Onion" technique where you align the three filming tracks in synch with the music and use the blade tool to cut randomly in each track, making sure none of them overrun each other as the dominant footage could then be seen through the background which would be confusing.
. Rendering is a key part of the green screen edit technique because if it is not rendered then a red line will appear and a blue sign with white writing will say "RENDER". This means no one will be able to watch or listen as the sign will not disappear until the rendering has been done. Render at the end as well just to be on the safe side to be sure it uploads and exports properly.
. Once all the footage had all been edited and we were happy with it we saved and exported it. The last stage is to upload it on to Youtube to then be able to embed it on to our blog.
. Our group has decided that we are unlikely to use this technique for two reasons: in the first place our audience research did not approve of a pop video using a green screen; also this technique does not fit in well with our genre as it is seen more in Rock videos.