I've made Z-depth maps to use for creating bas-relief panels;  I don't know if I could figure out a way to create a set of maps (like a stack of panels) which would allow for undercut shapes.  I do make models in the medieval genre.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5