Direct answer
What is a product identity lock?
A product identity lock is the fixed prompt block that protects the product before any campaign styling is added. It should name the silhouette, proportions, label layout, logo position, material finish, closure, color relationships, and any distinctive construction details. The scene can change, but the product facts should remain the quality gate for every output.
This framework is most useful when paired with clean product references. If the source image does not show a side, label, closure, or material detail clearly, the prompt should not pretend that detail has been verified.
First-hand product proof
The Desert Eyewear campaign kept the product as the fixed object.
The translucent frame, case, warm palette, desert gas-station world, and campaign format changed by asset role while the product and its physical presentation remained the reference anchor.
Inspect the complete case studyIndependent AI Craft Academy spec concept; not a commissioned client campaign. No affiliation or endorsement is implied.Write the immutable product block first
The product identity block should read like a compact inspection list. Preserve the silhouette, dimensions, label layout, logo placement, typography hierarchy, cap or closure, material finish, color palette, and any distinctive construction detail.
Do not mix these facts with mood words. The model should understand which details are fixed before it receives creative freedom elsewhere.
Build the scene around the product
Once the identity is locked, define how the environment reacts to the object.
- Specify the surface and how the product rests on it.
- Match cast shadows to the key-light direction.
- Control reflections on glass, metal, plastic, or coated paper.
- Keep the front label readable in the chosen camera angle.
- Reserve negative space only where campaign copy could realistically sit.
Use a repair line instead of rewriting everything
When the scene is strong but the package drifts, keep the accepted image as the reference and issue a narrow correction: restore the exact label, cap, proportions, and material finish while preserving the current composition and lighting. Narrow edits protect more of the successful result.
Conflict diagnostic
Prompt / Reference Conflict Diagnostic
Use this board when the requested scene and the product references appear to disagree. Resolve the authoritative product fact first, then narrow the transformation instead of adding more prompt language.
| Conflict layer | Authoritative evidence | What may change | Controlled correction | Stop or escalate when |
|---|---|---|---|---|
| Shape and construction | Approved front, side and detail photographs plus known dimensions. | Camera angle, crop and scene placement. | Remove style language that implies a different silhouette; request one presentation change at a time. | A required side, closure or component is not visible in any approved source. |
| Label, logo and text | Current packaging artwork and a readable straight-on packshot. | Lighting and perspective only when required text remains legible. | Preserve the exact supplied text as a finishing reference; do not ask generation to author missing copy. | The source versions conflict or mandatory wording cannot be verified. |
| Material and color | Neutral-light photographs and approved material or color specifications. | Environment reflections and light intensity within the approved appearance. | State the physical finish separately from the campaign palette and remove contradictory texture cues. | The requested look changes the real finish, opacity or variant identity. |
| Scale and interaction | Dimensions, comparison object or approved in-hand photograph. | Pose, framing and surrounding props that preserve believable scale. | Simplify the contact action and expose the hand, support surface and product edge clearly. | The interaction requires unseen geometry or implies unsupported product use. |
| Claims and campaign context | Owner-approved claims, restrictions and intended placement. | Background, prop family and non-factual mood. | Separate approved wording from visual direction; remove badges, results or benefits without evidence. | The scene would imply a certification, outcome, partnership or product capability that is not approved. |
Separate product facts from campaign language
Write the product block like an inspection note, not like an art direction paragraph. The model should first understand what cannot change: shape, scale, material, logo placement, label hierarchy, closure, edge geometry, and readable front-facing details.
After that, add the campaign world as a separate layer. This makes it easier to repair the package without destroying a strong scene, and easier to diagnose whether the failure came from product identity or from environmental complexity.
- Fixed product facts: silhouette, material, logo, label, color, closure, and proportions.
- Variable campaign choices: surface, props, background, light, lens, crop, and mood.
- Quality gate: compare the output to the original product before judging the scene.
Use references only for what they can prove
A single front packshot can prove the label hierarchy, front silhouette, and major color relationships, but it may not prove side thickness, cap geometry, rear copy, or transparent material behavior. When an asset needs those details, add references that show them.
If a detail is not visible in the provided references, keep the prompt conservative. Invented packaging can look convincing while becoming commercially unusable.
Repair drift with narrow instructions
When the product drifts inside an otherwise useful campaign image, preserve the accepted surface, shadows, lighting, and composition. Ask for the exact label, logo position, cap, material, and proportions to be restored.
Broad regeneration often solves one label problem while introducing new scale, reflection, or composition errors. Narrow repair protects the decisions that already work.
Diagnostic table
Find the failed layer before regenerating.
| Visible signal | Likely cause | Controlled correction |
|---|---|---|
| The product shape changes between scenes | The prompt treats the product as style instead of a fixed object | Move silhouette, proportions, and construction into the first identity block |
| Logo placement or label hierarchy drifts | Branding was described after mood, props, or lighting | State label layout and logo position before the scene layer |
| A side or closure detail appears invented | The uploaded reference does not prove that detail | Add a reference that shows it or remove the unverified requirement |
| The product is accurate but not physically integrated | Surface contact, scale, shadow, or reflection were not directed | Add grounding instructions after the product identity block |
Production checklist
Approve the system, not only the best frame.
- The product reference shows the commercially important side of the object.
- Silhouette, proportion, material, logo, label hierarchy, color, and closure are written before styling.
- The prompt separates fixed product facts from variable campaign choices.
- The chosen camera angle keeps the most important branding readable.
- Surface contact, shadow, reflection, and scale are specified after the product lock.
- The output is compared against the original reference before the scene is approved.
Frequently asked
Questions this workflow should answer.
What is a product identity lock?
It is the fixed prompt and reference layer that preserves the real product details while the scene, lighting, format, and campaign direction change.
Why do product labels change in AI images?
Labels often drift when the source is unclear, the angle is difficult, or styling instructions compete with exact package details. Treat label layout and logo placement as fixed facts before adding mood.
Can a product identity lock replace retouching?
No. It improves generation control, but some commercial assets still need manual review, narrow repair, or finishing for exact labels, warnings, and production-ready text.
Written from production practice
Omer Faruk Sahin
Founder, CEO, and Creative Director at AI Craft Academy. Omer leads strategy, product, advertising, creative direction, and the production systems documented in these field guides.
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