Features:
-FACS-based rig.
-Adaptive rig: which allows combining any number of expressions using optimized list of blendshapes.
-Real facial muscles constraints: the advanced rig logic simulates real facial muscles constraints.
-Advanced skin shader (for Maya and Unreal): holds up to 16 wrinkles maps and 16 dynamic diffuse maps with micro details and pores stretching.
-Easy to manipulate using facial controllers and/or GUI.
-Compatible with all game engines and animation packages.
-Smooth transition between all the expressions.
-Adjustment layer: freeform manipulation of multiple regions of the face to create unlimited variations of the same expression.
Source: Original Article
