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 Material swap

Change the material, keep the product

Swap matte for gloss, cotton for leather or brushed steel for brass, in a photo you already have. You write the change as an instruction in the image editor.

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Material swap in the image editor

A material swap changes the surface of a product in a photo you already have. You do it in the DesignerBox image editor, and there is no separate material swap screen. You write an instruction that names the new material. Matte becomes gloss, cotton becomes leather, brushed steel becomes brass. FLUX 2 Flex is the model DesignerBox describes as handling retexturing. Nano Banana Pro and Nano Banana 2 also offer Style Transfer and Product Image edit modes. The shape of the product stays the same. The surface changes.

Material changes the editor handles

The four swaps a product page needs most.

Matte to gloss

Turn a flat surface into a reflective one. Gloss needs a small, hard highlight and a soft reflection of the room around it.

Fabric to leather

Change a woven texture into a smooth hide, or the reverse. Grain size and weave direction decide whether it looks real.

Metal finishes

Move between brushed steel, polished chrome, brass and matte black. Each finish reflects light in a different way.

Colourway variants

Build the same product in several colours and finishes for a product page, from one source photo.

Edit modes for a material change

Where each mode fits, inside the same image editor.

Default edit

You describe the new material in plain words. Most material changes start here, with one surface per pass.

Style Transfer

Nano Banana Pro and Nano Banana 2 apply the look of a reference image to your product.

Product Image

A named edit mode for product shots. Pick it when the subject is a packshot rather than a scene.

Multi-reference edit

Kontext Multi takes up to 10 reference images, so one finish can stay the same across a range.

Steps for one material change

Small passes, each one checked against the real product.

1
Open the photo
Load the product photo into the image editor. It works on any photo you upload, including photos taken outside DesignerBox.
2
Name the new material
Write one instruction. Say the material and the finish, for example brushed steel becomes polished brass.
3
Correct the lighting
Look at the highlights and the shadows. Run a second pass if the light still belongs to the old surface.
4
Compare with the item
Hold the result beside the physical product. Colour and finish shifts are easy to miss on a screen alone.

One test image

Change the finish on a single photo. Compare it against the real product before you run a batch.

See plans

Craft notes for a convincing finish

A material change fails when the lighting does not follow the new surface. Every surface reflects light in its own way. Matte plastic spreads a highlight into a wide, soft patch. Polished chrome shows a small, hard highlight and a picture of the room. You swap matte for gloss but keep the original soft highlight. The result then looks like a colour change on a matte object. Name the light in the same instruction as the material. Ask for a sharper highlight, a visible reflection, or a darker shadow under the edge.

Reflective finishes need something to reflect. A mirror surface with an empty scene around it renders as flat grey. Before you ask for chrome or glass, describe the room. A soft window on one side, a dark wall behind, a pale floor below. Matte finishes want the opposite. They need a plain, even light so the texture stays readable. This is why one prompt gives a convincing matte leather and an unconvincing polished brass. Two finishes, two lighting briefs.

DesignerBox describes FLUX 2 Flex as strong on typography, retexturing and multi-reference editing. That makes it the first model to try for a finish change. It costs 7 credits per image and takes up to 10 reference images. Nano Banana Pro costs 14 credits and Nano Banana 2 costs 7, and both carry the Style Transfer and Product Image edit modes on up to 5 references. Kontext Multi costs 5 credits and takes up to 10 references, which helps when one finish has to stay the same across a range. Seedream 5 costs 4 credits and is a low-cost way to test an idea before you commit.

Details that decide the result

Six checks between a first swap and a publishable image.

Highlight shape

A gloss highlight is small and hard. A matte highlight is wide and soft. Ask for the right one by name.

Reflection content

A shiny surface shows the room. Describe what should appear in it, or the new finish looks flat.

Grain and weave

Leather has grain. Linen has weave. Name the scale, because the wrong scale makes fabric look printed.

Colour shift

A finish change moves the colour as well. Compare the new swatch against the original after every pass.

Check against the product

Put the edited image beside the physical item in daylight. A screen hides small differences in finish.

Credit cost per pass

Each edited image costs credits. Seedream 5 is 4 credits per image and GPT Image 2 is 22 credits.

Questions about material swaps

What people ask before changing a finish on a product photo.

How do I change the material of a product in a photo?
You open the photo in the DesignerBox image editor and write an edit instruction that names the new material. There is no separate material swap screen and no one-click button. FLUX 2 Flex is the model DesignerBox describes as handling retexturing, so start there. Nano Banana Pro and Nano Banana 2 add Style Transfer and Product Image edit modes for the same job. Keep each instruction to one surface.
Which model works best for a finish change?
FLUX 2 Flex is the one DesignerBox describes as strong on retexturing, so it is the first to try. It costs 7 credits per image and takes up to 10 reference images. Nano Banana Pro at 14 credits and Nano Banana 2 at 7 credits both carry the Style Transfer and Product Image edit modes. Kontext Multi at 5 credits takes up to 10 references, which helps when one finish must stay the same across a range.
Why does my gloss finish look flat?
A reflective surface needs something to reflect. When the scene around the product is empty, chrome and gloss render as flat grey. Describe the room in the same instruction: a soft window on one side, a dark wall behind, a pale floor below. Ask for a small, hard highlight as well. Matte surfaces need the opposite, because a plain even light keeps the texture readable.
Can I build colourway variants for a product page?
Yes, and it is the main job this technique does. Run one pass per colour and finish from the same source photo. Keep the crop, the angle and the light identical across the set. A product page reads as one range when the variants share framing. Save the sequence as a workflow if you have to repeat it for every new product you add.
Will the shape of my product change?
The editor rebuilds the surface you name and leaves the outline as it was, as long as each instruction asks for one change. A broad instruction across the whole image lets the model change parts you wanted kept. Compare the edited version beside the original at full zoom. Edges, seams and logo placement are where an unwanted change shows first.
How do I check the result before I publish it?
Hold the edited image beside the physical product in daylight. Check the colour first, then the highlight, then the texture at full zoom. A screen hides small differences in finish. A surface that convinces on a monitor can still be wrong when the customer opens the box. Publish only what matches the item you will ship. The seller carries that responsibility, not the software.

Your first material swap

Open one product photo in the image editor and change the finish. Compare the result against the real item.

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