This Nuke gizmo will help you to extract very fine hair details that is not possible in tradional keying techniques. This tool will work for 80% of the shots. All we need is cleanplate or in case if cleanplate is not available we can create one by ibk gizmo. The disadvantage of this tool is whatever details we pulled wont reflect in alpha channel
This gizmo is created inspired by Flow box roto tool. Instead of creating roto and animating one can draw a quick outline of a subject and it will create a solid roto for you. Very useful garbage rotos and timing saving tool.