How can I add a reflection to my product photo using AI?

Quick Answer

For a clean mirror reflection directly beneath a product, use Nightjar's Reflection option in the Shadow control, a product-only setting available when you choose a flat-color background. For reflections on glass, chrome, or other product surfaces, or reflections that belong to a room, generate the whole lit scene with Product Photography or revise an existing photo with Edit Images. Review the result closely, and use a manual composite or real photograph when approved pixels or exact optical behavior cannot change.

What does Nightjar's Reflection control change?

Nightjar's Reflection option replaces the product's cast shadow with a glossy ground plane and a soft mirror reflection directly beneath the product. It appears only when the shot has no Fashion Model and the background choice is a flat color. It does not appear with an automatic setting or a saved Background, because those scenes own their own grounding.

The Shadow control affects contact with the floor, not the reflections visible in a bottle, polished metal, a window, or the surrounding environment. That distinction follows real optics: OpenStax explains that smooth surfaces reflect light in specific directions while rough surfaces spread it. For glass and other transparent materials, the balance between reflection and transmission also changes with material and viewing angle, as described in the Physically Based Rendering reference on Fresnel reflection.

How do I add a ground reflection in Product Photography?

Use Product Photography, Nightjar's Create Workflow for new product-focused images:

1. Select a Product or add the product photo you want to use.
2. Keep Show Model off.
3. Choose a flat color in the background picker. The Shadow control will then appear.
4. Open Shadow and choose Reflection. Choose a product-only Framing that makes the ground plane easy to read, such as eye-level or three-quarter.
5. Generate, then compare the product with the source at full size.

Reflection is a fixed Shadow choice, so it does not expose separate opacity, blur, or falloff sliders. If the reflection needs a gentler treatment, use Custom Directions, Nightjar's request-specific instruction field, to ask for a lower-contrast reflection that softens and fades with distance. For repeated catalog work, save the setup as a Recipe, Nightjar's reusable Product Photography setup, so the same flat color, Framing, Shadow, photographic look, and output settings can be applied to other Products.

How do I add or revise a reflection in an existing product photo?

Use Edit Images, Nightjar's multi-image editing Workflow, when you already have a specific photograph. Add the Asset to the board, reference it as @image1, and describe both the surface and the constraints:

Add a soft mirror reflection on the glossy floor beneath @image1. Keep the product's shape, color, label, and position unchanged. Start the reflection at the base, match the camera perspective and existing light, reduce its opacity, soften it slightly, and fade it with distance.

For reflections on the product itself, name the material and environment instead: for example, ask for controlled studio-strip reflections on chrome or a soft window reflection in glass. Those are material or scene reflections, not a ground-contact Shadow.

How should I review an AI-generated product reflection?

A credible reflection should pass these checks:

• Contact: The reflection begins where the product meets the ground plane, without a gap, overlap, or floating edge.
• Perspective and geometry: The reflection agrees with camera height, product angle, visible underside, and curved or transparent parts.
• Light and surface: Brightness, color spill, sharpness, opacity, blur, and falloff fit the floor material and the rest of the scene.
• Product fidelity: Shape, proportions, material, color, label text, logos, closures, and included parts still match the approved product.
• Scene consistency: Nearby objects and lights appear where the reflective product or floor would reasonably show them, without duplicated or missing elements.

Nightjar's built-in visual review can retry some obvious eligible failures, but it is not fine-grained approval of reflection strength, refraction, transparency, or contact. A person should inspect every final image at normal size and close zoom.

When should I use a manual composite or a real shoot?

Use a manual composite when the approved product pixels must remain fixed or when you need direct control over the reflection's mask, opacity, blur, and fade. Adobe documents non-destructive layer masks and graduated blur controls for that workflow.

Use a real photograph when the image must prove the behavior of transparent liquid, glass, chrome, jewelry, packaging, or another reflective material, or when a precise environment must appear in the product's surface. Repeated prompting is not a reliable fallback when the optics or product facts remain wrong.