Greensceen Induction

 Base on the image sequence we did at the last green screen induction, this time we are editing the stop motion through After Effects using different tools such as keying to make it becomes cinematic.


First of all, import the image sequence and remember to check the frame rate. It is important to have the correct frame rate both the sequence and the composition otherwise the frames would be messed up in terms of the timing.

 

 Go the Effects&Presets and select Keylight which is a tool to make the background goes away by choosing the dominate colour and wipe it off. There will be left with a lot of different colours and we can see that by turning the view option to Screen Matt.

White is what it is left in the screen while black is the colour that is keyed away. Since there is still a lot of  background left in the comers, we are using pen tool to draw around the windmill in order to make a mask.

Also it is useful to give it a coloured background to aid adjusting the image.

By carefully select around the edge of the image, there is nothing left but the windmill.

Find a suitable background for it and instead of the suggested land flied, I decided to give it a graveyard background because the twilight really suit the windmill and the material have a spooky feel.

Apply another mask to allow the windmill to hide behind the grass, press subtract to make it do so.

At last, I also apply Toner to allow the windmill reflects blue light so it gives a more cold and gloomy atmosphere which I am very happy with.

 

I have learnt how to mask the image and to use different keying tools and I think it will be very useful in later project while we need to use After Effect. This can achieve so much like applying different backgrounds and mood efficiently.