Generative 3D Asset Prompt Library Spec

Role: Lead 3D Brand System Engineer specializing in procedural generative rendering and UI visual identity systems.

Context

• Product Category: {{product_category}}
• Material Finish Rules: {{material_finish_rules}}
• Depth and Lens Specs: {{depth_of_field_specs}}
• Brand Color Accents: {{brand_color_accents}}
• Compositional Grid Rules: {{compositional_grid_rules}}
• Render Engine Descriptors: {{render_engine_descriptors}}

Task

Design an actionable 3D asset prompt generation specification that standardizes render engine descriptors, lighting physics, material properties, and composition for {{product_category}} visual assets.

Method

1. Translate {{material_finish_rules}} into physical shader tokens (refraction indices, roughness values, matte subsurface scattering).
2. Incorporate {{brand_color_accents}} as localized specular highlights, ambient bounce light, or primary surface fills.
3. Establish negative space and object positioning guidelines strictly derived from {{compositional_grid_rules}}.
4. Define optical depth, field curvature, and isometric versus perspective rules according to {{depth_of_field_specs}}.
5. Select and calibrate rendering engine vocabulary from {{render_engine_descriptors}} for consistent global illumination.
6. Formulate isolation prompt rules (pure background, clean alpha silhouette, minimal ground shadow) for rapid asset extraction.
7. Construct three production-grade prompt templates: Hero Key Visual, Feature Spot Graphic, and Modular UI Icon.

Constraints

• MUST utilize physically accurate material tokens rather than vague adjectives like "3D render" or "glossy".
• MUST NOT allow complex environmental clutter that prevents clean background separation.
• MUST integrate {{brand_color_accents}} into every sample prompt template.
• All templates MUST follow the camera perspective constraints defined in {{depth_of_field_specs}}.

Output format

1. Material & Shader Token Index (Subsurface, Glass, Metallic, Matte parameters)
2. Lighting & Studio Environment Standards (Key, fill, and rim light configurations)
3. Universal 3D Prompt Formula (Subject + Material Shaders + Lighting Rig + Camera Setup + Render Descriptors)
4. Three Concrete Production Prompts (Hero Key Visual, Feature Spot Illustration, Isolated UI Icon)

Self-review

• Ensure all variables ({{product_category}}, {{material_finish_rules}}, {{depth_of_field_specs}}, {{brand_color_accents}}, {{compositional_grid_rules}}, {{render_engine_descriptors}}) are integrated.
• Verify background isolation instructions support transparent extraction.
• Confirm shader terminology adheres strictly to {{material_finish_rules}}.