Verified against Nano Banana / Gemini 3.1 Flash Image · 2026-08-12
Place a flat design onto a realistic object mockup with proper wrap and material behavior
A short, direct mockup brief for putting a flat design onto a real-world object — mug, tee, phone case — so it reads as physically applied rather than a sticker pasted over a template photo.
The prompt
Ready to copy — highlighted parts are example details you can swap.
Render one photorealistic mockup: a ceramic coffee mug, glossy white glaze with the following design applied to it, shown as a real physical object rather than a flat sticker pasted onto a template. 1. DESIGN TO APPLY: a two-color line-art illustration of a mountain range with the word 'WANDER' in a thin serif font beneath it — reproduce this exactly as described, no alterations to its colors, layout, or any text it contains. 2. WHERE IT SITS: Apply the design to wrapping the front-facing half of the mug, centered between the handle and the opposite side, wrapped and warped to match that surface's actual curvature and any folds or seams a real object of this kind has — a design on a mug should curve around the cylinder and compress slightly near the handle-side edge; a design on fabric should follow the fabric's natural drape, with any visible weave texture showing faintly through thin ink. 3. HOW THE MATERIAL BEHAVES: the glossy glaze should show a soft reflected highlight passing across the design, not flatten it into a matte sticker. 4. WHERE IT'S SHOWN: sitting on a wooden kitchen counter beside a folded linen napkin, soft morning window light, lit so the object reads as a real photographed product rather than a rendered template. 5. WHAT NOT TO DO: don't leave the design perfectly flat and undistorted regardless of the surface underneath it, don't add any second design or competing branding, don't crop the object so its overall shape is unrecognizable. OUTPUT One image of the finished object with the design convincingly applied, suitable for a mockup gallery or a print-on-demand product listing preview.
Customize
Optional — swap in your own details for the highlighted parts above.
Why this works
The default failure mode for design-onto-object mockups is the flat-sticker look: without an explicit instruction, an image model tends to composite a 2D design onto a 3D object the same way a quick Photoshop overlay would, ignoring the object's actual curvature and material response because rendering a design as if it were physically printed or dyed into the surface is a harder inference than simply placing it visually on top. Naming the specific physical deformation expected — curvature compression near a mug handle, drape and weave show-through on fabric — gives the model a concrete target instead of leaving it to default to the visually simpler flat overlay. Second, the material-behavior field exists because Nano Banana's photographic grounding means it can render a genuinely convincing reflected highlight moving across a glossy surface, but only when told that behavior is wanted; left unprompted, it will often flatten the design into a uniformly lit decal that ignores the glaze's actual glossiness entirely. Third, keeping the design-reproduction instruction strict and separate from the placement instructions matters because a model asked to "apply a design realistically" sometimes takes that as license to reinterpret the design's colors or proportions along the way, softening or shifting them toward what looks more natural on the object — stating explicitly that the design's colors, layout, and text must not change keeps creative liberty confined to the wrap and lighting, not the design content itself.
Verified against
Nano Banana / Gemini 3.1 Flash Image Gemini 3.1 Flash Image · 2026-08-12
Changelog
- 2026-08-12 — Initial publish, verified against Nano Banana (Gemini 3.1 Flash Image) on a mug and a t-shirt mockup.
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