facial animation using displacement maps

hi all

i’m finding out truly detailed facial animation is just not do-able with traditional modeling. displacement maps (detailed bump maps that actually deform geometry) exported from zbrush for instance, seem to be an answer. WHEN applied during animation they act like blend shapes (forming smile wrinkles for instance).
i know blender supports displacement maps but can they be used in this manner i.e. during animation? thanks!

facial animation using displacement maps from zbrush with a nice video of the result…