Blue \ Green Screen Comparison

This is a Comparison note between blue and green backdrops. this is just few point, it maybe more depend on the use.

Sometimes Rotoscope will be used even after keying for more cleaner matte. 

Note About Visual Effects

here is some notes from a TED video about visual effects.

- Visual effect is based on principles of all illusion :
       Assumption: things are the way we know them

       Presumption: things will behave as we expect

       Context in reality: knowledge of the world as we know it

- Playing with the world and our perception of it, is the assents of visual effects

- Never betray the illusion 

To see the video: Don Levy: A cinematic journey through visual effects