This week’s feedback primarily focuses on the details of mouth shapes. Firstly, when making the “u” sound, the corners of the mouth should not be fully open; the corners of the upper and lower lips should touch slightly. Secondly, when saying “get,” a small amount of teeth should be visible to make the pronunciation more natural. Even when laughing heartily, the jaw should remain relatively still, while the chest movement becomes more pronounced. These subtle adjustments can make the character’s mouth shapes more accurate, enhancing the overall realism and expressiveness of the animation.
When creating lip-sync animations, several aspects need to be considered:
- Opening and closing of the mouth (jaw): This is the basic element of lip-sync animation, determining the mouth shape changes of the character.
- Opening and closing of the mouth corners: Different emotions and phonetics require varying degrees of mouth corner movements to reflect the character’s expressions.
- Vertical movement of the lips: Adjust the positions of the upper and lower lips to match the speech.
- Forward and backward movement and rotation of the lips: Use these movements to depict more complex mouth shape changes. For example, “u.”
- Adjusting the visibility of the teeth based on dialogue and emotions: Certain sounds and emotions require more teeth to be shown.
- Overall vertical movement of the mouth: Adjust the position of the entire mouth to suit the needs of speech and expression.
- Adjusting the dynamics and shape of the nose based on mouth movements: Changes in the mouth affect the shape and dynamics of the nose.
- Changes in the cheeks: Compression and expansion of the cheeks can enhance the effectiveness of lip-sync.
- Movement of the lower eyelids: Small adjustments in the lower eyelids can enhance the character’s expressions.
It is important to note that the mouth does not always fully open and close with each sound; there needs to be some buffering and transition to ensure the animation is natural and smooth.
Regarding eye animation: The corners of the eyes and the ends of the eyebrows generally remain stationary, only showing slight movements in specific emotions and expressions.