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A studio note · Light & materials

Why reflections make a Duo render feel solid

Balance the material cues of the Duo frame and glass with the need to keep the app interface readable.

Partially folded Night Sky iPhone Duo with illuminated metal edges in a dark studio
A partially folded Duo in a dark studio scene, rendered in SynthMock.

A reflection describes the shape of a surface, but it also sits on top of the screen you want people to read. Treat it as a controlled part of the composition rather than a finishing effect to maximize.

Try it in SynthMock

Start with a Duo scene.

Use a reusable template as your starting point, then apply the choices in this article.

A paid plan is required to use templates and export.

Use a highlight to explain a surface

A broad reflected source can help reveal the plane of the glass, while a narrower highlight can make the metal rim easier to distinguish. Without a useful light direction, increasing reflection may simply brighten an unhelpful area. Choose a light direction that creates a useful highlight.

In SynthMock, Reflection adjusts the screen’s reflective treatment; the studio environment and key light shape the metal body. Light direction and camera view work together. A camera turn changes where a reflection appears even if the lighting values stay fixed. That is why a finish can look convincing in one still and lose its definition during an orbit. Review the movement as a changing arrangement of surfaces rather than approving the light from one attractive frame.

A controlled study to make in your project

Keep the fold, source artwork and background unchanged. Use the comparison to decide what each lighting adjustment contributes.

RoughChangeInspect
BaselineStart with a restrained visible key lightCan you separate frame, glass and background?
DirectionRotate the light while holding the cameraWhere does the useful highlight move?
ReflectionCompare lower screen reflection with Reflection 1Does the screen retain its most important content?

Protect the interface's important region

For a proposed analytics hero, a large white reflection over the primary metric defeats the image's purpose. Shift the light or camera so the reflection describes a quieter area. For a visual creative app, a broader glass cue may be acceptable because the artwork remains recognizable underneath.

Do not judge material quality by brightness alone. A pale surface with no tonal variation can look flat; a dark surface with no boundary can disappear. Seek a visible transition rather than an entirely white or black patch. Finish with a normal-size review of the published composition, then inspect the full motion if present. The successful balance is specific to the source interface, device finish and background you intend to use.

Final pass

Before you call it finished

  • Change one lighting variable at a time in a comparison.
  • Keep important interface content away from dominant reflections.
  • Inspect highlights throughout any camera move.

Make the next version yours.

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