About this asset

This 2K PBR grunge decal features vertical rain streaks, providing a realistic weathering effect for architectural surfaces. This procedural grunge decal simulates natural vertical water streaking and staining. The texture captures the subtle, irregular drips typical of aged building facades, metal cladding, or glass exposed to environmental elements. It includes a full PBR map set, comprising albedo, displacement, normal, roughness, and metalness channels, alongside a dedicated opacity map. This configuration allows for precise layering over existing base materials without compromising the underlying surface properties. The design is engineered to avoid repetitive tiling patterns, ensuring a high level of visual fidelity for close-up architectural renders where surface wear is required.

The download is a 3.8 MB compressed archive with the texture set at 2K with colour, normal, roughness, metalness, displacement and opacity maps, ready for any metal/roughness PBR workflow in Blender, 3ds Max, SketchUp, Unreal Engine or D5.

Apply this decal within your rendering engine by using the opacity map to mask the streak pattern over your primary material. For optimal realism, adjust the displacement map intensity to match the scale of the surface, and ensure the normal map is set to a low-strength blend mode to subtly influence light interaction. It is best used as a secondary layer in a material stack, allowing for non-destructive weathering adjustments across large exterior surfaces.

Use this decal to add realistic age and environmental character to exterior architectural projects, such as concrete walls, industrial steel panels, or weathered glazing. It is particularly effective for high-end exterior visualisations where pristine surfaces require subtle, authentic imperfections to ground them in reality. Professionals can integrate this into urban scenes or residential facades to depict the effects of prolonged exposure to rain and pollutants, pairing well with concrete or metal textures to enhance the narrative of a building's lifespan.