Nano Banana Pro 提示詞指南：結構、文字、參考影像與編輯

A close-up photograph of a hand-thrown ceramic bowl filled with ripe cherries, resting on a weathered wooden table in a sunlit farmhouse kitchen. Morning light comes from a window on the left and casts soft shadows to the right. Shallow depth of field, warm and natural colors, editorial food photography.

A minimalist concert poster in a 2:3 vertical layout. The headline "MIDNIGHT ORCHESTRA" sits at the top in tall, condensed, cream-colored serif letters. Below it, a single violin floats against a deep navy background lit by a soft spotlight. At the bottom, the line "Live at the Harbor Hall, October 18" appears in small, clean sans-serif text. No other text.

{
  "model": "gemini-3-pro-image",
  "contents": [{
    "role": "user",
    "parts": [
      {"text": "Place the lamp from the first image on the desk in the second image. Keep the lamp's shape, color and materials exactly as they are. Match the warm evening light of the second image."},
      {"fileData": {"mimeType": "image/jpeg", "fileUri": "https://example.com/lamp.jpg"}},
      {"fileData": {"mimeType": "image/png", "fileUri": "https://example.com/desk.png"}}
    ]
  }],
  "generationConfig": {
    "responseModalities": ["IMAGE"],
    "imageConfig": {"aspectRatio": "4:3", "imageSize": "2K"}
  }
}

Using the provided photo of a reading nook, change only the gray armchair to a dark green velvet armchair with brass legs. Keep everything else exactly the same, including the bookshelf, the rug, the window and the lighting.

Transform the provided photo of a harbor at dusk into a flat vector illustration with bold outlines and a limited palette of teal, orange and cream. Keep the composition of the boats and buildings.

Turn this rough pencil sketch of a desk lamp into a polished product photo of the finished lamp on a white studio background. Keep the angled arm and round base from the sketch, and make the shade brushed aluminum.

"generationConfig": {
  "responseModalities": ["IMAGE"],
  "imageConfig": {"aspectRatio": "16:9", "imageSize": "4K"}
}

Four app icon variations for a weather app, arranged in a 2x2 grid on a plain white background. Each icon is a rounded square with a soft gradient: a sun, a cloud, a raindrop and a snowflake. Flat, clean vector style with gentle shadows. No text.

A studio product photograph of a matte white wireless speaker on a pale sage-green surface. Soft, diffused light from a large softbox above, with a subtle shadow beneath the speaker. Slightly elevated three-quarter view that shows the fabric grille. Sharp focus, clean background, square format.

A cute sticker of a small orange fox wearing a knitted scarf, curled up asleep on a stack of books. Thick white border, bold clean outlines, simple cel shading and bright colors. The background is plain white.

A clean infographic titled "How to Brew Pour-Over Coffee" in five numbered steps, arranged from top to bottom: heat the water, rinse the filter, add ground coffee, pour in slow circles, serve. Each step has a simple line icon and a short label. Flat design, warm brown and cream palette, generous white space.

A 45-degree isometric miniature of a small seaside town with a lighthouse, a harbor with fishing boats and a row of pastel houses. Soft, realistic materials and gentle afternoon light. Clean composition on a solid pale-blue background.

A four-panel storyboard in black-and-white pencil sketch style for a short scene: an establishing shot of a mountain cabin in snow, a medium shot of a hiker opening the door, a close-up of a kettle on a stove, and a wide shot of the cabin window glowing at night.