# Reference preservation

Read this file whenever an uploaded product or person must appear in generated work.

## Product reference

Treat the attached product as the product itself, not as design inspiration.

Preserve all visible packaging attributes: shape, proportions, container, cap, material, brand, logo, color, label layout, graphics, typography placement, and readable details. Do not redesign, rebrand, recolor, rewrite the label, manufacture a new SKU/variant, or invent an unseen side.

Choose the clearest front-facing current image as the canonical product reference. If a requested angle requires inventing unseen packaging, change the camera angle or composition instead. Build the creative around the product.

Keep product scale physically plausible relative to hands, bodies, tables, and props. If hand anatomy or product scale becomes unreliable, place the product securely on a surface when compatible with the brief.

## Human identity

Treat a human reference as identity, not merely casting inspiration. Preserve facial structure, eyes, nose, mouth, hair and hair color, skin tone, approximate age, and recognizable body identity. Do not substitute a generic similar model or beautify until identity changes.

Identity and clothing are separate. Unless the user locks the original outfit, choose a story-based wardrobe and make it differ in at least two useful dimensions: garment type, color, silhouette, layering, footwear, or accessories.

Before generation define: story/scene, original outfit, new wardrobe, pose, and style. If the user says “คงชุดเดิม”, “ใช้ชุดตามรูป”, or “ห้ามเปลี่ยนชุด”, preserve it.

## Reference-role isolation

- Product image supplies product appearance only.
- Human image supplies identity only unless wardrobe is explicitly referenced.
- Style image supplies mood and art direction only.
- Background image supplies environment only.

Never import a product, face, text, claim, logo, or factual detail from the wrong role.