Result
This week I set keyframe for all mesh to the final design of each emotion. However I haven’t confirmed with the motion yet. Therefore, it is a result for some screenshot for each emotion first.
Work In Progress

Do you know how much muscles involved in one single smile ?
According to howstuffworks.com :
If we look at a smile that only raises the corners of the lips and the upper lip, it takes only five muscle pairs, or 10 total muscles, to do so. However, if the smile is further reduced to a robotic expression of just raising the corners of the mouth, then it takes only two muscle pairs (four muscles) to smile.
Therefore, I believed the smile facial expression is the most challenging facial expression to animate. The geometry for this model is not quite enough for me to adjust the minor expression.
In human being interaction, insincere smile can quite easy to identify by human being. That is our nature to read others facial expression for us to interact with others in this nowadays society. Therefore, the animation to modify a sincere smile is the most difficult one. I am not satisfied with my result, but I think it is a good start for me to improve my animate skill as character design is not my familiar subjects.





Reflection
For me, controlling the paintweight brush is quite challenging. Sometimes, my brush was not accurate enough for me to paint the skin area I targeted, and in turn it made me spend loads of time to smooth for a blurry area between and black and white area.
Next step, I would like to animate them in one final showreel to show all emotion. In this way, I can demonstrate how the rigging and shape editor helps me to animate the model.