How do I use AI product photography for clear plastic or liquid-filled products?

Quick Answer

Clear plastics and liquids are the hardest materials for AI because of light refraction. The best approach is to use a tool that lets you reuse a specific lighting setup across products and set liquid color by precise hex value. Nightjar is built for this kind of work: it can analyse the edges of a transparent product and fill the background through the clear material rather than treating it as an opaque block.

Why Transparency Fails in Generic AI

When you place a transparent bottle on a new background using a generic prompt-only AI tool, the tool often does not update the pixels inside the bottle to match the new background. The result looks like a cutout sticker pasted on a photo.

Accurate Rendering Techniques

To produce believable images of clear products:

• Lighting is physics. Light has to pass through the product. Nightjar uses a reusable visual ingredient called a Photography Style to control camera, lighting, mood, and color across a generation. Pick one with backlit or golden-hour direction so the model is told to render light passing through the object.
• Liquid color. If you sell a beverage or skincare oil, the liquid color has to match the bottle. In Nightjar's Edit tab there is a Recolor shortcut: a one-click affordance that pre-fills the prompt with a /color pill where you paste the exact hex code. Shadows, folds, and material properties are designed to be preserved while the fluid color is updated.
• Edge definition. Clear plastic disappears against similar backgrounds. Choose a Photography Style with high-contrast or studio lighting so the model defines the edges of the bottle with specular highlights.

Keeping a Whole Line of Clear Products Consistent

If you have a full line of clear skincare bottles, you do not want the lighting to change in every shot.

1. Upload one strong reference shot of a clear bottle.
2. Create a custom Photography Style from that reference so Nightjar can reuse how the light hits the glass.
3. Apply that Photography Style across the catalog so every clear bottle reads as if it came from the same studio session.

For catalog-scale reuse, save the full Create-form setup (Photography Style, background, aspect ratio, resolution, output format) as a Recipe: a Team-owned saved setup you can apply to the next product without rebuilding the brief.

Filling Out the Listing Gallery

Once a single hero shot reads correctly, expand it with the Photoshoot Workflow. Photoshoot turns one source image into four cohesive variants while keeping the product, lighting, and styling consistent and varying camera angle, framing, and crop, which is useful for evaluating how reflections and refractions read across viewpoints in your product detail page gallery.