A Question about face rigging...

#1

I have a book called
“Sybex Stop Staring Facial Modeling and Animation Done Right 2nd Edition”
but its for maya.
anyway there is an interesting face rigging technique in the book,it uses multiple bumps.
the images will explain:

the base expression:

when the eyes closes the bump map will change automatically :

onother one:

I will rig a face using bones but i dont know how i can change the bump map automatically when i will move a bone in the face for a specific length.

maybe there is a script or something.

thank you for help.

#2

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