How to animate a character’s facial expressions in 3D

In 3D animation, facial expressions can be created by adjusting blend shapes or using rigging controls. Focus on the main muscles involved in expressing emotions, such as the jaw, brow, and mouth. Use keyframes to define the peak of the expression and add in-betweens for smooth transitions. Refine the expression with small details like eye movement, lip positions, and slight head movements for added realism.