Is there a shader in Keyshot that is similar to the Vray Material Wrapper shader in Vray that allows you to apply that shader and it knocks out an alpha mask/channel for that object. I'm asking to see if its possible so I can just re-render out seperate objects and composite them in post instead of rerendering the whole animation?
I'm not sure what you are asking for, but render layers may be the answer for you if you are running the Pro version of KeyShot.