light-and-shadow-prompt-generator

name	Light and Shadow Prompt Generator
description	Generates high-quality image prompts focusing on architectural geometry, dramatic lighting, and solitary figures, highlighting material textures and atmospheric depth.

Light and Shadow Prompt Generator

This skill generates image prompts based on the "Container + Pressure + Cut + Anchor" aesthetic formula. It emphasizes material textures, dramatic lighting, and narrative depth.

Process

1. Materiality & Theme Analysis

• Goal: Establish the "Substance" of the scene.
• Action: Analyze the user's input (or choose a default if empty) to determine the core material palette.
• Rule: Every prompt MUST start by defining the material and atmosphere, not just the subject.
  • Bad: "A big room."
  • Good: "A cold, damp concrete chamber with water stains on the walls."
  • Good: "A rusting industrial corridor filled with steam."

2. Structural Formula Application

Construct the scene using this 4-step formula:

1. Container (The Geometry)

   • Describe a repetitive or imposing geometric structure.
   • Keywords: "Infinite colonnade", "Towering brutalist walls", "Symmetrical tunnel", "Massive archive shelves".

2. Pressure (The Lens)

   • Use wide-angle lenses and low angles to create scale and "pressure".
   • Keywords: "24mm wide angle", "Low angle view", "Vertigo inducing", "Towering scale".
   • Action: Draw from resources/variations.json "lens_types" for variety.

3. Cut (The Light)

   • Describe light not as illumination, but as a physical object cutting the space.
   • Keywords: "Volumetric lighting", "Hard shadows", "Shafts of sunlight", "Chiaroscuro".
   • Action: Draw from resources/variations.json "lighting_styles" for variety.

4. Anchor (The Scale)

   • Place a single, small, static element to provide scale.
   • Examples: "A lone figure in a red dress", "A single chair", "A small campfire", "A parked bicycle".
   • Rule: The anchor must be small relative to the container.

3. Detail Injection (Texture & Props)

• Goal: Make it feel "real" and "lived-in".
• Micro-Details: explicit mention of surface imperfections.
  • Examples: "Peeling paint", "Water damage", "Scratch marks", "Dust floating in the light" (Tyndall effect).
• Contextual Props: Add small scatter objects relevant to the theme.
  • Theme: Ancient Temple -> Props: "Burnt-out candles", "Fallen petals".
  • Theme: Cyberpunk -> Props: "Tangled wires", "Discarded takeout box".
  • Theme: Office -> Props: "Scattered papers", "Overturned coffee cup".

4. Assembly & Variety Check

• Combine all parts into a cohesive prompt.
• Negative Prompt: Include a standard negative prompt for this style (e.g., "flat lighting, low contrast, oversaturated, cartoon, 3d render, watermark").
• Final Polish: Ensure it reads like a scene description, not a grocery list.

Example Output Format

Prompt: [Material/Atmosphere] + [Container] + [Pressure/Lens] + [Cut/Lighting] + [Anchor] + [Details/Props]

Negative Prompt: [Standard Negative Prompt]

Usage Examples

Input: "Subway Station" Output: Prompt: Rough, grime-covered ceramic tiles lining the walls of a desolate underground space. An infinite symmetrical subway tunnel stretching into darkness. 24mm wide angle shot from a low perspective, emphasizing the oppressive ceiling height. Sharp, cold shafts of artificial light cutting through the thick, dusty air, creating harsh shadows. A lone commuter standing still on the platform, waiting. Scattered trash and old newspapers on the floor, puddles reflecting the flickering lights. cinematic lighting, photorealistic, 8k.

Input: "Forest Shrine" Output: Prompt: Moss-covered ancient stone surfaces damp with morning dew. A towering natural cathedral formed by massive redwood trees arranged in a natural colonnade. Ultra-wide panoramic perspective looking up at the canopy. God rays piercing through the dense foliage, creating a tyndall effect in the mist. A single small stone idol placed at the base of a tree. Fallen leaves, twisted roots, and floating pollen particles filling the air. mystical atmosphere, intricate texture, unreal engine 5.