A creator photo can have the right face and pose but the wrong lighting for the campaign. Relighting aims to change how the scene appears illuminated: where the light comes from, how soft the shadows are and how the subject separates from the background.
It is a different decision from applying a warm filter. For a coordinated set, begin with the visual reference you want to match and identify the lighting problem in concrete terms. ‘Make it cinematic’ leaves too many decisions undefined.
Fix picture lighting with the right operation
When a portrait feels too dark, first decide whether the problem is brightness or the direction of the apparent light. Exposure and tonal adjustments change how bright the recorded picture appears. Relighting can change the relationship between illuminated areas and shadows. A warm color treatment is another decision again. Choose the smallest operation that solves the visible problem before asking a generative editor to reconstruct the scene.
For a creator photo, write down one concrete issue: the face is darker than the room, the light comes from the wrong side or the subject and replacement background imply different light sources. Compare the source and exported result at equal size. Check the face, garment folds and nearby object together, because a brightened face alone can look disconnected from the setting. The original ceramic-artist pair below provides both source and edit downloads for this review.
The official IC-Light repository, checked October 1, 2026, describes text-conditioned and background-conditioned image relighting that takes a foreground image. Its documentation also explains that the demo’s lighting preference influences initial latents, rather than guaranteeing a final physical light direction. Name your requested direction in the brief, then inspect the actual shadows and highlights. This describes that implementation and does not establish identical controls in every photo editor.
Keep the original when you test a stronger edit. A polished-looking result can alter the face, hand geometry or product surface while fixing the light. Review those changes explicitly before approving the picture for a campaign. If the required change is only overall brightness or white balance, compare a conventional adjustment first and reserve generative relighting for a change it can usefully make.
Separate relighting from color grading
| Operation | Main change | Example |
|---|---|---|
| Color correction | Exposure and color balance | Remove an unwanted green cast |
| Color grading | A creative tonal and color treatment | Match a restrained cool campaign look |
| Relighting | Apparent light direction and shadow structure | Move a soft key light toward camera-left |
| Background replacement | The environment behind the subject | Place the creator in a different studio |
The IC-Light project documents image relighting with text-conditioned and background-conditioned models. It provides a specific implementation to inspect, rather than evidence that every editor supports the same controls. Choose a tool whose documented input and output match your task.
Use a source image with enough visible information
Start with a sharp approved portrait and preserve the original. Deeply clipped highlights or a face hidden in darkness leave less visible texture for a faithful edit. Check whether the selected workflow uses a foreground cutout, full scene or background reference.
Keep the subject's identity and material colors central to the review. A lighting change should not silently turn a red jacket orange, alter a product's finish or rebuild the creator's face. Save any mask or cutout with the source so revisions remain understandable.
AI lighting example with a warm right-side key
This original example starts with the same fictional ceramic artist used in our portrait guide. We supplied the actual source image as a reference and requested a warm key from camera-right with a dimmer, cooler fill on the left. This is an editorial image-edit example, not an IC-Light benchmark or a demonstration of video relighting.
Download the original lighting reference · Download the lighting edit · Download the editable portrait review sheet
Relight this fictional ceramic artist with a warm soft key from camera-right and dim cooler fill from the left. Keep her recognizable face, cobalt apron, cream linen shirt, ivory bowl and workshop composition. Add restrained warm highlights on the right curls, shirt folds and bowl. Keep the left window area cooler and avoid clipped highlights or a glowing cutout edge.
The output shows warm directional highlights along the right curls, shirt and bowl, with a cooler left window area. Skin warms too, and the editor subtly regenerates face, hand and bowl details. The example therefore shows an apparent lighting change with some content drift; it does not prove that only illumination changed or that every shadow is physically accurate.
| Observed change | What to check before approval |
|---|---|
| Warm right-side highlights | Inspect face, curls, clothing and bowl together for a coherent direction |
| Cooler left window and warmer skin | Check white balance and material colors against the campaign reference |
| Subtle face and hand regeneration | Compare identity and object geometry with the source at full size |
Use the lighting rows in the downloadable CSV to record direction and shadows, skin and material colors, and face, hand and scene continuity. Its result fields are blank so you can evaluate your own export. If exact product geometry matters, choose a workflow with masks or localized finishing and inspect the affected area rather than assuming a general AI lighting tool preserves every detail.
Describe direction, softness and environment
Relight this approved creator portrait with a large soft window light from camera-left and a gentle neutral fill from the right. Preserve the face, hairstyle, cream shirt and skin texture. Keep natural contact shadows and a restrained dark-blue background. Avoid clipped highlights and a glowing outline around the subject.
This original example names an observable lighting setup. Use the selected interface's supported controls for references or masks. If a tool only offers a general text edit, test whether it can satisfy the brief without changing identity before using it for a campaign.
For a night scene, define which practical light is visible and which direction it should illuminate. Multiple unexplained shadows or a bright face in an otherwise unlit environment can make the subject feel pasted into the scene.
Review the light as a whole system
| Detail | Question to ask |
|---|---|
| Face | Do both sides of the face respond plausibly to the requested light? |
| Eyes | Are catchlights and eye detail coherent? |
| Clothing | Do folds and highlights follow the same direction? |
| Objects | Do reflections and cast shadows belong to the scene? |
| Edges | Is there a halo or inconsistent cutout boundary? |
| Background | Does its brightness support the subject's illumination? |
View the original and revised image at the same size. Check a close crop for skin and edge artifacts, then inspect the full composition. A technically clean cutout can still look implausible when the face and environment suggest different light sources.
Make a lighting reference sheet for a campaign
Choose an accepted baseline and record the key light's direction, apparent size, contrast and color. Add the intended background treatment. Use that short note for every scene rather than repeating a list of cinematic adjectives.
Test three assets: a close portrait, a wider lifestyle view and a product interaction. The wider scenes expose shadow and contact issues that a close-up can hide. Review them together before producing the full campaign.
If the brief needs accurate product color, compare with the real product reference under a neutral view. Keep the campaign treatment within the range that still represents the item faithfully. A dramatic look is not worth creating a misleading product image.
Treat video relighting as a temporal task
A still-image result does not prove that the same edit will remain stable through movement. For video, use a documented video relighting operation or a controlled finishing workflow and start with a short test. Independently editing frames can introduce flicker and inconsistent detail.
Watch the full shot at normal speed and inspect turns, occlusions and changing camera angles. Compare the opening, middle and end for skin tone, shadow direction and identity. Look for brightness pulsing, shifting edges or reflections that move independently of the scene.
- Save the original clip and a clear reference frame.
- Define one lighting change with an accepted visual reference.
- Test the shortest useful section of the motion.
- Review the actual video export, including transitions.
- Approve the look before applying it to a longer sequence.
Evaluate free and local options by the actual operation
A downloadable image relighting model can require separate installation, weights and hardware. Read the repository's current license and setup instructions. An integration that calls a hosted endpoint is not automatically offline inference.
For a free relight service, check whether it handles photos or video, the allowed resolution and the export conditions. Do not choose a tool only because it has ‘relight’ in the name. Compare a permitted source using the same brief and measure the cost of accepted results including repairs.
Keep your creator's look coherent
Build your AI creator in Clout, approve the identity and create photos and videos around a shared visual direction. Use a precise scene brief for light and environment, then add a dedicated finishing operation where the project requires it. Save the accepted lighting reference with the campaign assets.
