GPT Image Prompt
How to useCopy this prompt and paste it into ChatGPT, Gemini, Nano Banana, or your favorite AI image tool. Adjust details if needed.
Create a cinematic vertical 2:3 educational poster explaining how a lighthouse helps ships recognize dangerous coastlines and navigation points at night. Use a night navigation panorama viewed from a high angle over a rocky coast. Place the lighthouse near the upper-left edge, standing on a rugged headland, and place one ship much farther out at sea in the lower-right. Let the rotating lighthouse beam sweep diagonally across the composition and act as the main reading path, guiding the viewer through the lesson. The beam must appear as a realistic cone of projected light in misty night air, not a solid wall, and it should contain one enlarged inset detail of the lighthouse lens, showing the Fresnel lens structure clearly but elegantly.
Write the title “HOW A LIGHTHOUSE SPEAKS WITH LIGHT” inside the sweeping beam. Integrate exactly five large labels in broad, readable areas within the beam, sky, or calm sea: “POWERFUL LAMP” — “A bright source produces concentrated light.” “FRESNEL LENS” — “Stepped glass focuses light into a strong beam.” “ROTATION” — “The beam sweeps across the surrounding sea.” “FLASH PATTERN” — “Different rhythms help identify a lighthouse.” “COASTAL WARNING” — “The signal helps sailors recognize nearby hazards.” Add one clear clarification line: “MODERN SHIPS ALSO USE MAPS, RADAR, AND SATELLITE NAVIGATION.”
Use realistic night cinematography with restrained technical overlays, believable scale, and subtle atmospheric detail. Show deep navy sky, sea black water, warm lighthouse gold, white foam against rocks, and cool moonlight across the coast. Keep the coastline hazardous but readable, with rocks, surf, and dark water helping explain why the signal matters. Do not place the lighthouse in the center, do not turn the poster into a ship-navigation map, do not imply the lighthouse controls the ship, do not bend the beam around cliffs, and do not suggest every lighthouse uses the same flash pattern. Keep all text large, clean, high-contrast, and easy to read on a phone screen.