ft-Clamp is very similar to Nuke’s Clamp node. it is able to clamp RGBA values as also force a maximum and minimum color.
It is usually use before or after filters which needs to have values between 0-1 (or 0-255). Since it can clamp different values on the separate RGB channels and works with “High Dynamic Range” values, it can also be used as a color correction tool or as a threshold filter.
Download & Sources
- Pixel Bender shader : ft-Clamp
How to install it ?
Just copy the .pbk file into your “Support Files” folder in your AE install directory