already exists, the existing file is overwritten when the changes are saved. The embedded camera settings remain intact. Adjust levels for RED RAW files 1. ...

https://www.apple.com/jp/final-cut-pro/docs/RED_Workflows_with_Final_Cut_Pro_X.pdf

For conventional video, demosaicing and other processing operations are performed within the camera to produce viewable RGB images that can be recorded into...

https://www.apple.com/jp/final-cut-pro/docs/Apple_ProRes_RAW.pdf