{
  "action": "Transform the attached image into a 3D object made of translucent glassy jelly-like polymer.",
  "preserve": "Preserve the original shape, proportions, silhouette, internal details, orientation, and composition exactly as in the input image.",
  "variables": {
    "material_color": "#99FF00",
    "background_color": "#000000"
  },
  "material": {
    "base": "A thick translucent polymer in {{material_color}}, glassy and jelly-like, closer to a solid cast resin than to anything watery. The form has real volume throughout, never a thin shell.",
    "light_transmission": "Light passes deep into the body and scatters softly inside it rather than stopping at the surface. The scattering stays diffuse and even, with no visible internal particles."
  },
  "optical_behavior": {
    "edge_glow": "Internal refraction concentrates light where the body thins, so every thin edge and rim lights up noticeably brighter than the bulk.",
    "reflections": "Internal reflections stay visible through the body, bending with the form.",
    "specular": "Soft diffused specular highlights sit on a glossy surface of low to medium roughness."
  },
  "colour_rule": "The object holds one saturated {{material_color}} throughout. Depth is read from value alone: the thick core sits darker and denser, the thin edges lift brighter and more luminous. The hue itself never shifts to another colour.",
  "surface": "Subtle micro-scratches run across the gloss, fine and shallow, catching the light without breaking the clarity of the material.",
  "lighting": {
    "style": "Studio lighting with strong highlights.",
    "effect": "The light drives the internal scattering and the edge glow, and reveals the micro-scratches across the surface."
  },
  "rendering": {
    "style": "High-quality 3D render",
    "detail": "Focused on internal light transmission, edge luminosity, and the tactile gloss of the surface."
  },
  "composition": {
    "background": "Pure {{background_color}}, the object centred and isolated within it, slightly floating.",
    "framing": "Centred, isolated object, slightly floating."
  }
}