This seamless 8K PBR 3D texture showcases an oxidized coal surface characterized by a burnt umber color that evokes a natural, weathered appearance. The material composition reflects a dry, coarse-grained mineral substrate typical of coal, with visible fissures and a dusty residue layer that adds complexity and realism. The oxidized finish results from natural chemical changes in the coal’s surface, producing subtle variations in color and texture that are faithfully captured across all PBR channels. The texture’s base color (Albedo) presents deep burnt umber tones interspersed with darker oxidized patches, while the normal map highlights the rough and fissured surface topography. Roughness maps emphasize the dry, uneven finish, contributing to the tactile feel of the coal surface, and the metallic channel remains minimal, consistent with the non-metallic nature of coal. Ambient occlusion enhances depth perception around cracks and grain boundaries, while the height map delivers finely detailed displacement for realistic surface relief.
The underlying morphology of this coal texture is defined by a granular structure with irregular grain orientation, reflecting natural coal composition where organic matter is interspersed with mineral impurities. This results in a porous, brittle surface that is susceptible to weathering, which manifests visually as dry fissures and a dusty residue layer. The oxidized layer acts like a subtle pigment, altering the coal’s dark base color to the rich burnt umber shade that dominates the Albedo channel. Such organic and mineral interactions create a nuanced surface finish that is neither polished nor smooth but distinctly rough and oxidized, perfect for adding authenticity to photorealistic 3D models in projects demanding realistic coal appearances.
This texture is optimized for high-end 3D workflows, fully compatible with Blender, Unreal Engine, and Unity, ensuring seamless integration into various rendering pipelines. The 8K resolution guarantees exceptional detail even in close-up shots, allowing artists and developers to showcase fine fissures, grain patterns, and surface weathering without loss of fidelity. For best results, it is recommended to adjust the UV scale to highlight the intricate fissures and fine grains, and to fine-tune the roughness map to control how light interacts with the oxidized surface—balancing matte and subtle specular reflections to enhance realism. Additionally, using the height map for parallax or displacement effects will accentuate the coarse, cracked morphology, giving depth and tactile authenticity to 3D models featuring oxidized coal surfaces.
The coal surface exhibits a rough texture with a burnt umber color that appears oxidized, creating a realistic, unreal Blender-ready PBR material.
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)
- Enable the addon: Edit → Preferences → Add-ons → Node Wrangler.
- Create a material and select the Principled BSDF node.
- 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.
- Add AO and Height using the “Manual wiring” steps below (5 and 6).
Manual wiring (full control)
- Create a material (Material Properties → New) and open the Shader Editor.
- Add an Image Texture node for each map. Set Color Space:
- Albedo → sRGB
- AO, Roughness, Metallic, Normal, Height, ORM → Non-Color
- Connect to Principled BSDF:
albedo → Base Colorroughness → Roughnessmetallic → Metallic (for wood this often stays near 0)normal → Normal Map node (Type: Tangent Space) → Normal of Principled.
If details look “inverted”, enable Invert Y on the Normal Map node.
- 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).
- Height / Displacement:
Cycles — true displacement
- Material Properties → Settings → Displacement: Displacement and Bump.
- Add a Displacement node: connect
height → Height, set Midlevel = 0.5, Scale = 0.02–0.08 (tune to taste).
- Output of Displacement → Material Output → Displacement.
- Add geometry density (e.g., Subdivision Surface) so displacement has polygons to work with.
Eevee (or lightweight Cycles) — bump only
- Add a Bump node:
height → Height.
- 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:
- Add one Image Texture (Non-Color) → Separate RGB (or Separate Color).
- R (red) → AO (use it in the Multiply node with albedo as above).
- G (green) → Roughness of Principled.
- B (blue) → Metallic of Principled.
UVs & seamless tiling
- These textures are seamless. If your mesh has no UVs, go to UV Editing → Smart UV Project.
- 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.
