To pull a key, you must first set up your composite in the Modular Keyer.
To set up the composite in the Modular Keyer:
You are taken to the ConnectFX view. The schematic is displayed and your front clip is connected to the output node.
The front clip is connected to the front (red) input of the Modular Keyer node, which is connected to the output node.
You are taken to the Viewing panel and the cursor becomes a green arrow, prompting you to select a back clip.
You are taken back to the ConnectFX schematic and your back clip is connected to the back input of the Modular Keyer node.
You are taken to the Viewing panel and the cursor becomes a blue arrow, prompting you to select a matte clip.
You are taken back to the ConnectFX schematic and your Matte clip is connected to the matte input of the Modular Keyer node.
Your front, back and matte clips are now connected to the front, back and matte inputs of the Modular Keyer node. You are ready to start creating your key.
The Master Keyer processing pipeline appears. The Master Keyer is the default keyer.
After you have set up the nodes and media, set up the viewports for keying.