FACS Facial Expressions with Seedance 2.0

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A new experiment with Seedance 2.0 on @mitte_ai: FACS.

For this video, I only used FACS codes in the prompt. I didn't describe the facial expressions in plain language at all.

FACS (Facial Action Coding System) is a system for describing facial expressions using individual muscle movements called Action Units (AUs), instead of general emotion labels like "happy" or "sad." It breaks the face into controllable components such as brow movement, eyelid tension, lip movement and cheek activation.

Even though it didn't follow all 14 Action Units perfectly, it still interpreted most of them surprisingly well.

Seedance 2.0 Prompt for the first 15s:

Use the provided character @[image1] as the fixed identity reference.

15s, 1:1, 14 beats, beat-synced, cinematic tight close-up, subtle neutral background, high facial clarity, slow micro push-in, shallow depth of field.
1: AU10
2: AU20
3: AU22
4: AU23
5: AU27
6: AU28
7: AU45
8: AU53
9: AU61
10: AU62
11: AU64
12: AU85
13: AU84
14: AU46

Uneasy, hypnotic, controlled mood. No monster transformation, no gore, no comedy, no text overlay, no watermark.

Using FACS (Facial Action Coding System) codes instead of plain language to control facial expressions in Seedance 2.0. This approach provides precise control over micro-expressions using Action Units (AUs) like AU10 (upper lip raiser), AU20 (lip stretcher), AU45 (blink), etc.