Welcome to the Reallusion Forum
You're Posting in the wrong Sub-Forum
You need to Post your question in the iClone General Sub-Forum, where you'll hopefully get some helpful Replies.
Although, my initial thought is that it's going to be difficult to do, to get a realistic effect.
However, I expect Forum Member Cricky might chip-in with a solution if he sees your Post in The iClone General Forum.
----------------------------------------------------------------------------------------- REALLUSION FORUM ANNUAL PINHEAD COMMUNITY PROJECTS.
New Pinhead Website & Project to be announced in September 2015
-----------------------------------------------------------------------------------------