Currently I am working on a facial rig. The model is just of a simple head mesh. All that is created right now is the head, jaw, eye ball, and eye lid joints. The joints are not bound to the mesh yet as I still have to create joints on the face for extra, settle movements for the animator to take advantage of. I created the joints for the eyelids by using the "fan" method. There are three joints chains for the top eyelid, and three joint chains for the bottom eyelids as well. Using expressions, I have made it to where the eyelids correspond to the movements of the eyeball. Example: if the eyeballs look down, the top eyelids will follow the eyeball down, and the bottom eyelids will go down as well. If the eyeball looks up, the top eyelids will go up, as well as the bottom eyelids, etc.
Once I have finished creating blend shapes, the controls for the blend shapes, the joints on specific parts of the face, and am ready to start binding the skin to the joints, I will also add in a "skin tug" around the eye by adding in a very low influence paint weight on the vertices that are located immediately around the eyeball, to create a more realistic look. I plan to create joints for the ears to create settle movements of the ears moving up and down, so the character can be more expressive.
I have attached photos of what my project current looks like. Once I am able to bind the skin, I will post up a motion test video. Thank you for your time and interest! I am excited to see how this rig turns out.
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