hi there,
wouldn’t it be possible to have something like a “morph” from a photograph to a 3d model.
like pulling off the expression of a face with guideline(polylines?) and transfer the information to you mesh - guidelines provided.
eg: like a 2 circular poly sfor the eyes, lines for grooves and muscle features around the mouth, mouth and liplines, nose position and point. zbrush seems to recognize position in 3d-space and could transfer this rig to my 3d-model.
i wish for something like a gallery of maybe 20+ faces i like my model to look like - and transfer their expressions and distinct features to my model. i don’t mean to be lazy or stop modelling faces - but technology powers such thinking and latest developments for the next version of zbrush encourage me to request (or hint) that idea.
how about it? any thought on this - even if i stamp myself as lazy-bastard 
cheers (and thanks for taking your time and reading this…)
chem!