Seamless 3d texture pbr 8k brown onyx raw surface with onyx rough texture and mineral veins free download

. Formats: WEBP, PNG . Free for personal & commercial use.

Preview — Seamless 3d texture pbr 8k brown onyx raw surface with onyx rough texture and mineral veins

IDseamless-3d-texture-pbr-8k-brown-onyx-raw-surface-with-onyx-rough-texture-and-mineral-veins
Onyx
WEBP, PNG
Size1k (1024x1024px), 2k (2048x2048px), 4k (4096x4096px), 8k (8192x8192px)
sRGB

This seamless 3D PBR 8K texture captures the raw surface of brown onyx, a sedimentary stone known for its distinct coarse grain and natural veined patterns. The material composition primarily consists of microcrystalline quartz layered with calcite, creating an intricate substrate that exhibits earthy tones ranging from deep browns to subtle tans. These mineral veins, formed through natural sedimentation and mineralization processes, produce irregular linear and branching patterns that define the stone’s characteristic appearance. The texture emphasizes an unpolished, rough surface finish, where the natural porosity and slight weathering effects introduce subtle surface irregularities and micro-roughness, enhancing the tactile realism of the stone.

From a geometric perspective, the form reflects a veined, layered structure with organic undulations and coarse grain distribution typical of raw onyx slabs. The interplay between light and shadow across the mineral veins is captured through detailed height and displacement maps, which emphasize depth variations and natural fissures in the stone. The roughness channel conveys the matte, uneven surface reflecting light diffusely rather than specularly, while the normal map accentuates fine surface details such as micro-cracks and grain texture. The base color (albedo) channel accurately portrays the rich brown hues and subtle color gradients without any artificial saturation, maintaining the stone’s authentic earthy palette. Ambient occlusion maps further enhance the perception of depth within crevices and veins, providing a realistic shading effect at creased or recessed areas. The metallic channel is appropriately set to null, reflecting the stone’s non-metallic nature.

Optimized for 8K resolution, this texture offers exceptional detail and fidelity suitable for high-end rendering workflows. Its seamless design makes it ideal for large-scale applications without visible tiling artifacts. It is fully compatible and ready for integration within Blender, Unreal Engine, and Unity, supporting physically based rendering pipelines for accurate material response under varying lighting conditions. The comprehensive PBR channel set ensures a realistic portrayal of both the material’s color and surface geometry, making it highly versatile for architectural visualization, game environments, and digital asset creation requiring natural stone surfaces.

For practical usage, it is recommended to carefully adjust the UV scaling to match the real-world grain size of brown onyx, avoiding overly repetitive patterns. Additionally, tuning the roughness map can help simulate different degrees of surface wear or polishing, depending on the desired level of realism. When integrating height or parallax mapping, blending it subtly with the normal map can prevent harsh artifacts while preserving the natural depth cues of the mineral veins and coarse grain structure.

How to Use These Seamless PBR Textures in Blender

This guide shows how to connect a full PBR texture set to Principled BSDF in Blender (Cycles or Eevee). Works with any of our seamless textures free download, including PBR PNG materials for Blender / Unreal / Unity.

What’s inside the download

  • *_albedo.png — Base Color (sRGB)
  • *_normal.png — Normal map (Non-Color)
  • *_roughness.png — Roughness (Non-Color)
  • *_metallic.png — Metallic (Non-Color)
  • *_ao.png — Ambient Occlusion (Non-Color)
  • *_height.png — Height / Displacement (Non-Color)
  • *_ORM.png — Packed map (R=AO, G=Roughness, B=Metallic, Non-Color)

Quick start (Node Wrangler, 30 seconds)

  1. Enable the addon: Edit → Preferences → Add-ons → Node Wrangler.
  2. Create a material and select the Principled BSDF node.
  3. Press Ctrl + Shift + T and select the maps albedo, normal, roughness, metallic (skip height and ORM for now) → Open. The addon wires Base Color, Normal (with a Normal Map node), Roughness, and Metallic automatically.
  4. Add AO and Height using the “Manual wiring” steps below (5 and 6).

Manual wiring (full control)

  1. Create a material (Material Properties → New) and open the Shader Editor.
  2. Add an Image Texture node for each map. Set Color Space:
    • AlbedosRGB
    • AO, Roughness, Metallic, Normal, Height, ORMNon-Color
  3. Connect to Principled BSDF:
    • albedoBase Color
    • roughnessRoughness
    • metallicMetallic (for wood this often stays near 0)
    • normalNormal Map node (Type: Tangent Space) → Normal of Principled. If details look “inverted”, enable Invert Y on the Normal Map node.
  4. Ambient Occlusion (AO):
    • Add a MixRGB (or Mix Color) node in mode Multiply.
    • Input A = albedo, Input B = ao, Factor = 1.0.
    • Output of Mix → Base Color of Principled (replaces the direct albedo connection).
  5. Height / Displacement:
    Cycles — true displacement
    1. Material Properties → SettingsDisplacement: Displacement and Bump.
    2. Add a Displacement node: connect heightHeight, set Midlevel = 0.5, Scale = 0.02–0.08 (tune to taste).
    3. Output of Displacement → Material Output → Displacement.
    4. Add geometry density (e.g., Subdivision Surface) so displacement has polygons to work with.
    Eevee (or lightweight Cycles) — bump only
    1. Add a Bump node: heightHeight.
    2. Set Strength = 0.2–0.5, Distance = 0.05–0.1, and connect Normal output to Principled’s Normal.

Using the packed ORM texture (optional)

Instead of separate AO/Roughness/Metallic maps you can use the single *_ORM.png:

  1. Add one Image Texture (Non-Color) → Separate RGB (or Separate Color).
  2. R (red) → AO (use it in the Multiply node with albedo as above).
  3. G (green) → Roughness of Principled.
  4. B (blue) → Metallic of Principled.

UVs & seamless tiling

  1. These textures are seamless. If your mesh has no UVs, go to UV EditingSmart UV Project.
  2. For scale/repeat, add Texture Coordinate (UV)Mapping and plug it into all texture nodes. Increase Mapping → Scale (e.g., 2/2/2) to tile more densely.

Recommended starter values

  • Normal Map Strength: 0.5–1.0
  • Bump Strength: ~0.3
  • Displacement Scale (Cycles): ~0.03

Common pitfalls

  • Wrong Color Space (normals/roughness/etc. must be Non-Color).
  • “Inverted” details → enable Invert Y on the Normal Map node.
  • Over-strong relief → lower Displacement Scale or Bump Strength.

Example: Download Wood Textures and instantly apply parquet or rustic planks inside Blender for architectural visualization.

To add the downloaded texture, go to Add — Texture — Image Texture.



Add a node and click the Open button.



Select the required texture on your hard drive and connect Color to Base Color.


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