by ThomasL » Fri Feb 21, 2014 2:54 am
Actually, a basic face rig is there, on the hidden bone layer 2. Alas, that layer is also clogged with a lot of muscle bones that you don't want to see. To understand why this happened, let me explain how rigify import works.
1. Import a rig which has the bones of a rigify metarig + extra bones (muscles and face rig).
2. Create a metarig and move joints as in the exported rig.
3. Invoke rigify.
4. Add the extra bones to layer 2, and add their constraints as well.
Clearly the extra bones should have been divided into visible bones (face rig) and hidden ones (muscles), and the face bones should be on the head layer (bone layer 1). I will check how difficult that is, but I'm not sure that I want to touch anything before the release. Anyway, you can change the bone layers yourself in edit mode.
The visible extra bones should have custom shapes as well, as in the mhx rig. Shouldn't be too hard to add.
EDIT: It turned out to be easy to fix the bone layer thing in the mhx importer. However, I still hesitate to make changes to the stable branch.