Rusty Drain Manhole Cover with Triangular Studs | Free PBR free download

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

Preview — Rusty Drain Manhole Cover with Triangular Studs | Free PBR

IDrusty-drain-manhole-cover-with-triangular-studs-free-pbr
Metal
PNG
Size1k (1024x1024px), 2k (2048x2048px), 4k (4096x4096px), 8k (8192x8192px)
sRGB

This Rusty Drain Manhole Cover with Triangular Studs (Metal 0075) is crafted to faithfully replicate the authentic material characteristics of a solid cast iron manhole cover, aged through prolonged exposure to environmental elements. The base metal substrate is dense and robust iron, which over time has developed extensive oxidation layers that create a rich, rusty patina. This corrosion manifests in a complex blend of iron oxide pigments, ranging from deep reddish-browns to lighter orange hues, reflecting the natural chemical transformation of iron surfaces subjected to moisture and air. The triangular studs, a distinctive industrial design element, maintain crisp edges softened by subtle wear and weathering, enhancing the tactile roughness and visual depth. The surface finish is distinctly oxidized and heavily corroded, featuring pitted textures and flaky rust deposits that convey the material’s age and exposure history.

In terms of physically based rendering channels, the BaseColor (Albedo) map captures the nuanced interplay of rust tones layered over the solid iron base, accurately reflecting the heterogeneous color caused by oxidation. The Normal map delivers fine details of the raised triangular studs and the uneven, corroded surface topography, highlighting material imperfections and depth variation. The Roughness map reflects the diverse surface conditions, with higher roughness values on heavily corroded, flaky rust areas and lower values where the metal remains relatively smooth. The Metallic channel predominantly indicates a high metal content, consistent with the cast iron base, but is modulated to represent the non-metallic oxide layers formed by rust. Ambient Occlusion enhances the shading around the studs and recessed areas, adding realism and enhancing visual contrast, while the Height/Displacement map supports subtle elevation changes that improve parallax effects and the perceived tactile detail on flat surfaces.

This texture is presented in a seamless format at up to 8K resolution, ensuring exceptional detail and clarity for close-up renders. It is fully optimized for integration into advanced workflows using Blender, Unreal Engine, and Unity, accommodating high-fidelity projects such as game assets and architectural visualizations where industrial realism is paramount. The meticulous resolution preserves the integrity of the triangular stud pattern and the intricate rust layers, making it a versatile material for applications that require authentic aged metal appearances, including manhole covers, industrial floor elements, or weathered metallic walls in abandoned factory scenes.

For optimal results, it is recommended to adjust the UV scale in your 3D software to maintain realistic proportions of the triangular studs and rust patterns relative to real-world dimensions. Additionally, fine-tuning the Roughness map can help balance the reflectivity and weathering effects, ensuring the rusty metal reacts convincingly under various lighting conditions. Utilizing the Height map with parallax occlusion further enhances the sense of depth and texture, transforming flat geometry into a richly detailed surface, ideal for achieving a highly realistic industrial metal aesthetic.

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.


AITEXTURED Tools

Build, preview, and export seamless PBR materials. Generate full map sets from a single image, inspect them in a real-time WebGL viewer, and re-package maps for Unreal, Unity, and Blender—directly in your browser.