Positioning
This is the formal shooting'spreliminary professional styling node. It runs immediately once the direction card already has a clear time and space, scene, and per-person clothing draft, and is used to generate the formal hairstyle for that direction; after the user selects a direction, the downstream Look / Shot / image generation only inherit it and do not redesign it repeatedly.
Trigger
- Autonomous mode: before each valid candidate direction A/B/C is shown to the user, the per-person hairstyle design is completed first.
- Gacha mode: after the system selects a valid direction, the per-person hairstyle design is completed immediately, then Look expansion begins.
- Remix: rerun only when an upstream variable invalidates the hairstyle according to the dependency graph, for example changing era, changing clothing, changing worldview, or a location/environment change that would significantly affect the hairstyle.
Reference Image Boundaries
- The Canonical real-person reference image only provides facial identity information, not hairstyle locking. Hair length, straight/curly, fringe, parting, volume, silhouette, and hair color texture can all be redesigned.
- Do not default to carrying over the hairstyle just because the hair in the original image is clearly visible; unless the user explicitly requests keeping the original hairstyle.
Design Freedom Hard Gate
Unless the user explicitly locks it, the hair in the original reference image and the retouched identity reference image is not a constraint. The following can be freely changed:
- length: longer / shorter;
- texture: straight / curly / wavy;
- parting: center part / side part / no obvious parting;
- fringe: keep the original fringe / design a specific new fringe / exposed forehead;
- crown_volume: top volume;
- sides: wrapping at both sides, close-fitting, wispy strands;
- back: back section gathered, updo, loose hair, ponytail, etc.;
- silhouette: overall outline;
- ear_neck_exposure: whether the ears / neck are exposed;
- hair_accessories: necessary hair accessories;
- hair_color_feel: necessary hair color texture consistent with the theme.
The fringe strategy must be explicitly decided; it is forbidden to carry over the reference image unconsciously.
Design Basis
Integrate the character's temperament, face shape and facial feature focus, forehead proportions, head-neck/shoulder proportions, per-person clothing, neckline and shoulder line, accessories, era/work world, scene environment, and photographic language to directly design the hairstyle that best matches the temperament of that direction.
Output
Each participant outputs one structured hairstyle_design：
- participant_id / label
- length
- texture
- parting
- fringe
- crown_volume
- sides
- back
- silhouette
- ear_neck_exposure
- hair_accessories
- hair_color_feel
- design_reason
Do not give the user additional A/B/C hairstyle options; the direction card directly displays the final result. Rerun this node only when the user explicitly requests a hairstyle change.