Lesson #02 Keylight Despill
This second Lesson I´ll show how you can use the Keylight Keyer to do a great Despill job. You don´t have to bother with creating Spill Maps or all the mathematics behind it. It´s a simple WYSIWIG Despiller.
This time you will need just your Blue or Greenscreen Plate and the Keylight Node.
Here we got an awesome Plate of a a hairy ape. This Plate we are going to use on later lessons about Keying too.
First of all create a Keylight Node and pick the Screen Colour
You will now have a first fast draft Key of your Screen.
Now get to your Screen Colour Values and change them a little bit.
I start with the blue values and raise the value from
blue from 0.504 to 0.811
green from 0.125 to -0.036
red from 0.033 to -0.213
As you start changing your values you will see how your Screen Colour gets back opaque and changes it´s color. This is super simple and super fast. This is all the trick in this tutorial. Just changing three values 🙂
As I´m despilling I try to get into the colour my new background is going to have so I´m going to simulate the despill light my new background illuminates my foreground Plate.
Sometimes you may see your Despill pushes your Plate Grain to a level that looks really bad. In this case I mix my Degrained Plate with some percent over my normal Plate before I will despill it. Then Check and set the mix amount optically after my despill algorithm.