#ai #nano-banana #google #prompt 

物件描述框架

``` JSON
{
  "shot": "",
  "subject": {
    "item": "",
    "materials": "",
    "details": "",
    "condition": ""
  },
  "environment": "",
  "lighting": "",
  "camera": {
    "focal_length": "",
    "aperture": "",
    "angle": ""
  },
  "color_grade": "",
  "style": "",
  "quality": "",
  "negatives": ""
}

```

人物描述框架

``` JSON
{
  "shot": "",
  "subject": {
    "age": "",
    "appearance": "",
    "pose": ""
  },
  "environment": "",
  "lighting": "",
  "camera": {
    "focal_length": "",
    "aperture": "",
    "angle": ""
  },
  "color_grade": "",
  "style": "",
  "quality": "",
  "negatives": ""
}

```

![[IMG-20260315173031658.png]]
``` JSON
{
  "shot": "Macro close-up shot, square aspect ratio (1:1), centered composition.",
  "subject": {
    "item": "A luxury men's chronograph watch.",
    "materials": "Polished stainless steel case, sapphire crystal glass, black ceramic bezel with a tachymeter scale, leather strap with fine stitching.",
    "details": "White dial with three sub-dials, glowing lume on hands and hour markers, intricate gears of the movement visible through a transparent caseback.",
    "condition": "Pristine, brand new, no dust or fingerprints."
  },
  "environment": "The watch is resting on a dark, textured slab of slate rock. The background is a simple, dark, out-of-focus gradient.",
  "lighting": "Studio softbox lighting. A key light from the top-left creates clean, sharp reflections on the steel. A soft fill light from the right reveals details in the shadows. A subtle rim light separates the watch from the dark background.",
  "camera": {
    "focal_length": "100mm macro lens look",
    "aperture": "f/8 (to keep the entire watch face in focus)",
    "angle": "Shot from a 45-degree angle above the watch."
  },
  "color_grade": "High contrast, clean and commercial look. Slightly desaturated to emphasize the metallic and monochrome textures. High clarity and sharpness.",
  "style": "Hyper-realistic CGI render, commercial product photography, luxury and precision.",
  "quality": "8K resolution, perfect material shaders, flawless reflections, extreme detail on the dial and gears.",
  "negatives": "no scratches, no dust, no logos or brand names, no human hands, blurry watch face, unrealistic lighting."
}

```