Today i did a bit of experimental green screening. The reason for wanting to green screen is because i want bits of my film to be shot in a car, by using a green screen i can give the effect of something exciting like a vehicle moving at high speed, or something more common such as, two people having a conversation in a car.
The reason i am not going to just film inside the car while the car is moving is because it puts the lives of my actors in danger (something i wish to avoid). by asking an actor to remember their lines, act natural, keep in character whilst driving a moving vehicle is dangerous and via green screening can be easily avoided
Also whilst filming in a car that is moving any small bumps the car encounters vibrates through you or the tripod and gives a horrible overall effect giving uncontrollable jerky movements that not only look very amateurish also can ruin the whole effect you are going for, so by having a stationary car and putting a green screen infront of whatever you want to edit out, you can film from inside, or outside the vehicle and get a stable shot that gives the effect you are after.
The final reason for wanting to green screen is becasue i want to feature in my own film, i can set up a tripod and get the composition perfect with an actor of similat build to me, push record walk in to the car and act my part, then get out of the car turn off record and then edit out the bits i dont want to use.
Here is my first attempt at green screening
to do this piece of green screening i filmed out of the passenger side of charlies car whilst he drove, i got about 8 minutes of footge. i then put the green screen behind my car and filmed charlie driving, i asked him to only do small movements on the wheel and to change gears at random, i filmed him for about a minute. after importing the footage in to after effects i was able to achieve the green screen effect purely through guess work. and also due to the amount of footage i had collected of background scenery i was able to scrub through and find a piece of footage that fitted perfectly.
As i only guess worked my way in to learning green screening techiniques, my video resulted in being(excuse the punn) a little rough around the edges. so my plan is to do a few more shoots, and take a few tutorials to improve my knowledge of green screening.
i have choosen this tutorial to start with.
http://aftereffects.forgingfire.com/2009/04/28/advanced-keying-pt-3-keying-with-color-key-linear-color-key-color-range/
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