Verified against Nano Banana / Gemini 3.1 Flash Image · 2026-08-11
Turn a flat label or box design into a photorealistic packaging concept render
A packaging-mockup brief that wraps flat artwork onto real package geometry with physically accurate material response, plus explicit safeguards against the garbled-text failure mode image models are prone to.
The prompt
Ready to copy — highlighted parts are example details you can swap.
Act as a packaging designer rendering a physical concept mockup of a label or box design for internal review — the goal is a believable object sitting on a surface, not a flat mockup template with artwork pasted over it. THE PACKAGE a 250ml cylindrical aluminum can, standard beverage-can proportions. THE ARTWORK APPLIED TO IT a full-wrap label, deep teal background, a hand-drawn citrus illustration on the front third, thin gold rule lines top and bottom. Wrap this artwork onto the package's actual physical geometry — on a cylindrical container, the label should show the correct amount of curve and any edge-of-label distortion a real wraparound label would have; on a box, panels should fold correctly at real edges with visible, physically accurate creases. MATERIAL AND FINISH brushed aluminum body with a matte-varnish label finish, no gloss. Render the finish's real optical behavior — a matte finish should scatter light diffusely with no hard specular hotspot, a glossy or foil finish should show a distinct, correctly-angled highlight that moves with the lighting described below, not a uniform sheen painted flat across the surface. EXACT TEXT TO RENDER BRIGHTWELL — Sparkling Yuzu — Net 250ml. Reproduce this text exactly as given, character for character — do not paraphrase it, invent alternate wording, or substitute a similar-looking brand name. If any word here is at risk of rendering illegibly at the size implied by the package, keep that specific word larger or simpler rather than let it blur into unreadable characters. ENVIRONMENT AND LIGHTING standing on a pale concrete surface, soft overhead studio light with a gentle rim light from behind. WHAT TO KEEP OUT OF FRAME No second product, no competing packaging in frame, no invented additional text or claims beyond what's specified above, no barcode unless one was described. OUTPUT One photorealistic image of the physical package as a finished object, artwork correctly wrapped to its geometry, ready to drop into an internal concept-review deck.
Customize
Optional — swap in your own details for the highlighted parts above.
Why this works
Text rendering is the single most failure-prone part of any image-generation model, including Gemini-based Nano Banana — even models that handle short text reasonably well still misspell, duplicate, or garble longer strings a meaningful percentage of the time, which is exactly why this prompt isolates the exact brand text as its own labeled field with an explicit character-for-character instruction rather than folding it loosely into the general artwork description, and why it gives the model permission to prioritize legibility of specific words over strict layout fidelity when the two conflict — a slightly larger word that's still readable beats a perfectly-sized one that renders as illegible noise. Second, wrapping flat artwork onto real package geometry is a distinct failure mode from text: without an explicit instruction, models frequently render packaging labels as a flat decal sitting on top of a curved surface rather than actually respecting that surface's curvature, because pasting a flat design over an object is visually simpler than correctly distorting it — naming the specific curvature and crease behavior expected pushes the model toward the harder, correct interpretation. Third, describing the finish in terms of its actual optical behavior (diffuse scatter versus a moving specular highlight) rather than a single adjective like "shiny" matters because Nano Banana's photographic training gives it real learned behavior for how different finishes respond to light — the same reason this works in general product photography prompts — so spelling out which behavior is wanted lets it apply the right physics instead of defaulting to a generic uniform sheen.
What you get back
A photorealistic can render with the label correctly curved around the cylinder and the exact wording legible; on a first pass, a long secondary tagline sometimes renders slightly soft — a follow-up like "keep the tagline text sharp even if you have to enlarge it slightly" usually resolves that in one more turn.
Verified against
Nano Banana / Gemini 3.1 Flash Image Gemini 3.1 Flash Image · 2026-08-11
Changelog
- 2026-08-11 — Initial publish, verified against Nano Banana (Gemini 3.1 Flash Image) on a beverage-can concept render.
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