Green Screen Testing...
This is the green screen facility and setup currently at Ravensbourne. This picture was taken by level two student maik.
Here is a still taken from footage off of the Canon 550D, this picture shows me and also the markers that are used for tracking after the shoot.
After Effects...
In After Effects I imported another rush, this time featuring my friend richard doing a little 'jig'.
Using the plugin 'Key-light' I was able to remove the green using the dropper tool and eliminated any grey tones left by increasing the screen gain slightly.
This then allows me to insert a background of my choice...
Now all thats left for this simple exercise is to colour grade both layers and animate masks that cover the masking tape tracking points, these were not nescessary for this shot, hawaiian music is optional...
This screen-shot shows the composition that has had some colour alteration using the curve effect, also I have animated two masks that cover the white tape markers.
And here is the finished result, cheese and all..
the reason for it being such low resolution was for upload purposes.
Autodesk MatchMover
This unit covers post production and the ability to integrate CG elements within live ation footage. The program that I will use for this is Autodesk MatchMover.
I have looked through online tutorials provided in the MatchMover help tab, and have also found other lengthy video tutorials that are available on youtube.
http://www.youtube.com/watch?v=0OAU7Fs3glA&feature=related
This tutorial is spread over 16 parts but sadly ends abruptly and in complete, it seems...
The matchmover tutorial covers automatic tracking over a piece of footage that is 50 frames long. It explains how to use the interface, import image sequences, use automatic tracking, solve points for camera and how to export footage for use in a 3D application, in this instance Maya. 
The two videos show how I have used basic automatic tracking
I followed each point on the tutorial and managed to place a cube in the scene, it is not convincing however is a start in understanding this software, next I plan to track a scene manually where I can set up a co-ordinate system with a ground plane and X,Y,Z.
The Group Film - My Part
Keying
In after effects I used Keylight in order to remove the green screen and increased the screen gain to eliminate any grain that remained (such as shadows).
I then inserted a solid red behind so I could see what I was making transparent.
In some cases where some green spilled onto my collar I imported a duplicate copy of footage and masked it so that only the area around my collar was visible on that layer stopping the green becoming see-through.
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| This shows the masked footage (the green spill is visible however) |
I added a spotlight to this scene and animated the intesitiy to increases as I cover my face with my hand an squint, I also inserted the background.
For around 6 shots I Keyoud out the green and animated masks that covered the tracking marker points. The points were not needed in some scenes as they required no tracking, however they needed to be removed. This was a tedious task but had to be done.
This is the ufo crash that I first envisioned.
I modelled the ufo for this project and added lights, it is fairly basic.
