The nine basic categories are Metals, Wood, Stone and minerals, Fabrics and textiles, Glass and transparent materials, Plastics and synthetics, Organic materials, Liquids, and Composite materials. Use one clear category before you add a finish, a state of wear, or an interaction.
Metals
Metal prompts depend on luster, finish, color, and form. The Man-Made Materials section covers metal, rust, and copper patina alongside other manufactured surfaces. Use it for the source’s reflective, oxidized, anodized, forged, malleable, ductile, tensile, and conductive prompt words.
Wood
Wood needs a species, grain, finish, or age cue. The Natural Textures section covers wood grain, while Sculpting and Modeling Materials shows wood as a shaped material. Use oak, pine, mahogany, cedar, walnut, birch, ebony, or bamboo with the grain and finish that fit the object.
Stone and Minerals
Stone, marble, granite, crystal, and related surfaces already appear in the Natural Textures section. Start there for surface and lighting guidance, then add a formation or cut when the scene needs geological detail.
Fabrics and Textiles
The Fabric and Textile Textures section covers cotton, silk, wool, linen, leather, and other fabrics with form and lighting cues. Use the source’s weave, texture, and pattern terms when the garment or textile needs a more exact construction.
Glass and Transparent Materials
Glass, frosted glass, crystal, acrylic, ice, reflection, refraction, and dispersion are covered in the Man-Made Materials section and the Natural Textures section. Choose clear, translucent, or opaque first, then describe the surface or optical effect.
Plastics and Synthetics
For plastic, rubber, foam, resin, and acrylic, use the Man-Made Materials section. It covers manufactured surfaces and their reflected edges. Add molded, extruded, thermoformed, or injection-molded when production method matters.
Organic Materials
Leaves, flowers, bark, moss, feathers, fur, bone, shell, mushrooms, and lichen belong in the Natural Textures section. Use living, decaying, or fossilized states to tell Midjourney what stage of change to render.
Liquids
Water, oil, mercury, lava, ink, and paint are also part of the Natural Textures section, with water and ice examples. Add viscosity, opacity, surface tension, or motion words such as flowing, rippling, cascading, droplets, miscible, immiscible, effervescent, and turbulent for a more specific result.
Composite Materials
Composite prompts benefit from structural terms. Name concrete, fiberglass, carbon fiber, plywood, or reinforced plastics, then state whether the construction is layered, woven, particulate, reinforced, laminated, hybrid, engineered, anisotropic, heterogeneous, or synergistic. The Man-Made Materials section provides the base surface vocabulary for these builds.
Advanced Techniques for Material Prompts
Material Interactions
Describe how materials interact with each other or their environment.
- “Copper statue slowly developing green patina in a coastal environment”
Scale and Perspective
Explore materials from microscopic to macroscopic views.
- “Electron microscope view of carbon nanotube forest growing on silicon substrate”
Temporal Changes
Incorporate the passage of time and its effects on materials.
- “Time-lapse of iron beam rusting and deteriorating over decades”
Impossible Materials
Invent new materials with fantastical properties for creative scenes.
- “Quantum glass that becomes opaque when observed, transparent when ignored”
Cultural and Historical Context
Reference specific material uses in various cultures or time periods.
- “Ancient Mayan jade burial mask with intricate turquoise inlays”
Sensory Integration
Include non-visual sensory aspects of materials in descriptions.
- “Sizzling hot iron skillet with visible heat waves and smells of seasoning”
Tips for Effective Material Prompts
- Be specific: Use precise material names and properties
- Combine materials: Create unique effects by mixing different substances
- Consider context: Place materials in settings that highlight their characteristics
- Describe interactions: How do materials react to light, force, or other elements?
- Balance detail: Provide enough information without overwhelming the prompt
- Experiment: Try unexpected combinations and descriptions
Troubleshooting
- If results lack detail: Add more specific material properties or interactions
- For inconsistent textures: Use words like “seamless” or “uniform” in your description
- To enhance realism: Include imperfections or weathering appropriate to the material
- If the material is overpowering: Balance the description with other elements in the scene
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