> ## Documentation Index
> Fetch the complete documentation index at: https://docs.melius.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Product photos and swaps

> Swap your product into a generated scene, produce on-brand product photography without a studio shoot, and keep dimensions and logos accurate.

Product photography is one of the highest-leverage uses of Melius. Instead of booking a photographer, lighting a set, and waiting three weeks for assets, you can produce production-grade product shots in an afternoon — including lifestyle context, seasonal scenes, and channel-specific variants.

The two main workflows: **product photography from scratch** (generate the whole scene) and **product swap** (place your real product into an existing scene). Both follow similar mechanics.

## Workflow A: Product photography from scratch

**Goal:** generate a hero shot or lifestyle image with your product as the centerpiece.

<Steps>
  <Step title="Drop your pack shot on the canvas">
    A clean product photo on a neutral background. If you have multiple angles, drag in all of them and unified-group them — the agent will use all angles as reference.
  </Step>

  <Step title="Paste the PDP URL into the agent chat">
    Brief: *"Pull the product details from \[URL] — focus on dimensions, materials, and color. Save it as a text node."* This gives the agent the actual physical specs to anchor on.
  </Step>

  <Step title="Add a style reference if you have one">
    A moodboard, a competitor's product photography, or an existing campaign whose look you want to mirror. Use [the style analysis workflow](/help-center/marketers/recipes/style-reference) to turn the references into a usable style description.
  </Step>

  <Step title="Create an image-to-image node">
    Right-click → New image node → Image-to-image. Pick Nano Banana Pro at 2K and the aspect ratio you need.
  </Step>

  <Step title="Connect everything in">
    Pack shot → image input. PDP details → context input. Style description → context input. (Use `@` mentions in the prompt as a shortcut.)
  </Step>

  <Step title="Write the prompt">
    Keep it grounded in what's *not* changing. Example:

    ```
    Hero shot of @product in [setting].
    Use the exact product from the reference — don't restyle the product, don't change its color, don't modify its shape or proportions.
    Use the @pdp-details for accurate dimensions and materials.
    Use the @style-description for lighting, composition, and mood.
    ```
  </Step>

  <Step title="Run 3–4 variations">
    Inspect the results in full-screen mode (the canvas preview is downscaled). Pick the strongest.
  </Step>
</Steps>

## Workflow B: Product swap

**Goal:** drop your product into a scene you already have (or have generated), replacing whatever was there.

<Steps>
  <Step title="Drop the target scene onto the canvas">
    The image where you want your product to appear. Could be one you generated earlier on the canvas, or a stock image you've uploaded.
  </Step>

  <Step title="Drop your product pack shot in too">
    Same as before — clean photo, ideally with multiple angles unified-grouped.
  </Step>

  <Step title="Create an image-to-image node">
    Nano Banana Pro, 2K. Aspect ratio matching the original scene.
  </Step>

  <Step title="Connect both as inputs">
    Scene → image input. Product → context input.
  </Step>

  <Step title="Write a swap prompt">
    Example:

    ```
    Replace the [object/product] in @scene with the @product from the reference image.
    Keep everything else identical — same lighting, same composition, same color grade, same camera angle.
    Match the placement, scale, and orientation of the original [object].
    Make the proportions and placement of the product feel natural and realistic.
    ```
  </Step>

  <Step title="Run 3–4 variations">
    Inspect the results. If the product is the wrong scale or placed awkwardly, tweak the prompt with specifics (*"the product should be slightly larger, occupying about 30% of the frame width"*) and re-run.
  </Step>
</Steps>

There's a **Product Swapper** preset in the templates menu that pre-configures this entire flow. If you find yourself doing product swaps frequently, start from the preset instead of building from scratch.

## Keeping product fidelity high

Product fidelity is the #1 issue marketers raise on onboarding calls. The product almost-but-not-quite matches — the proportions are slightly off, the logo is rendered as a similar-looking-but-not-correct shape, the material drape looks generic. Here's the fix kit:

### Always include the PDP URL

The PDP scrape gives the agent your product's actual dimensions in cm/inches, its material specs, and its color codes. Without this, the model is guessing from a single photo — and it'll guess wrong on proportions roughly half the time.

### Always include a pack shot, not just a lifestyle reference

A lifestyle photo of your product in use doesn't give the model a clean view of the product itself. Drag in a clean studio shot or a transparent PNG as the product reference, separately from any mood references.

### Add the logo as its own node

If the product has visible branding, drop the logo file (PNG or SVG) onto the canvas as a separate node. Connect it to the image node. In the prompt: *"Use the @logo for any branding visible on the product. Do not redraw it — use the reference exactly."*

### Use Nano Banana Pro for style; GPT Image 2 for visible text

Nano Banana Pro handles material and lighting fidelity better. GPT Image 2 is unmatched for rendering legible typography (product names, labels, packaging copy). If your product has visible text on the packaging, lean GPT Image 2.

### Force higher resolution

1K previews look softer than the actual output, but going straight to 2K (or 4K) gives the model more detail to work with on small features — fine fabric weaves, embossed logos, label typography. Worth the extra render time.

## Common pitfalls

* **No pack shot, just a lifestyle reference.** The model can't see the product clearly. Add a clean studio shot.
* **No PDP URL.** Proportions and dimensions drift. Paste the URL.
* **Re-prompting the whole thing when the product is slightly off.** Edit the existing node's prompt with a specific correction instead. *"Keep everything else, but: the product should be 20% larger / oriented vertically / placed in the foreground."*
* **Logo regenerated from scratch.** Add the logo as its own reference node and tell the prompt not to redraw it.

<Tip>
  If you're producing product photography at scale, build the workflow once on one SKU, get it dialed in, then duplicate and swap inputs for each additional product. This is how high-volume DTC teams produce hundreds of product variants per week — see [Make a winning ad work harder](/help-center/marketers/recipes/variants).
</Tip>