[Metal] Perforated Textures

Perforated and vented metal is where the openings matter more than the metal around them. These tiles come mainly from the designed Metal volumes, where panels are built with punched apertures, slotted vents, grilles and recessed channels as part of the pattern rather than as damage. That makes them behave differently from a scanned sheet: the aperture rhythm is deliberate and regular, so it tiles cleanly across large surfaces and reads as manufactured hardware at any distance.

License

Free for personal and commercial use. No attribution required. Commercial games, film, broadcast, print, architectural visualization and client work are all permitted. No credit, no backlink, no permission request needed. You may not resell or redistribute the texture files themselves as a texture pack.

What's in this collection

• Punched and slotted panels — regular aperture grids and elongated vents cut into plate, for equipment cases and ducting.
• Grille and louvre patterns — parallel bar and fin arrangements with deep shadow behind them, for intakes and speaker fronts.
• Recessed channel panels — sunken tracks and cavities that read as openings under raking light without being true holes.
• Technical panel work — combinations of apertures, fasteners and raised ribs for sci-fi bulkheads and machinery casings.

All tiles are seamless in both directions and delivered at high resolution.

Where perforated metal is used

Game environments. Sci-fi corridors, ventilation, server rooms and equipment housings, where a vented panel makes a wall read as functional rather than decorative at almost no cost.

Product visualisation. Speakers, appliances and audio hardware, where the grille is the defining feature and renders far better as a texture than as modelled geometry.

Architectural visualization. Perforated cladding, screening and balustrade infill, which are real and common building elements clients recognise immediately.

Motion and graphic design. The regular aperture grid works well as a mask for revealing type or footage through a structured pattern.

How to use these in Blender

1. Connect the colour map to Base Color and set Metallic to 1.0, then drive Roughness from the supplied map.
2. For genuine see-through holes, feed a black-and-white copy into the Alpha input and set Blend Mode to Alpha Clip in Material Properties.
3. Add a Bump node at low strength so the rolled lip around each aperture catches light without inflating the panel.
4. Put something behind the panel. A perforation with empty black behind it reads as printed dots rather than as openings.

How to use these in Unreal Engine 5

1. Import colour with sRGB on and roughness, normal and mask maps with sRGB off.
2. Set the material Blend Mode to Masked and connect a desaturated copy to Opacity Mask if you want real transparency through the apertures.
3. Keep normal intensity moderate; the aperture shadow should come from the mask and geometry rather than from an exaggerated normal.
4. Avoid tiling too small. A perfectly regular grid at high repeat produces moire against the pixel grid at distance, so fewer, larger repeats hold up better in motion.

How to use these in Unity

1. Use URP/Lit with Rendering Mode set to Cutout if you need true openings, otherwise keep it opaque and let the texture carry the shadow.
2. Set Metallic to 1 and use a smoothness map so the panel face and the aperture interiors separate correctly.
3. Place a Reflection Probe in the space; vented metal still relies on reflection to read as metal rather than grey card.
4. Add Detail Maps at high tiling for surface grain so panels hold up when a player stands close.

Tips for perforated metal specifically

Light it from the side. Apertures are defined entirely by the shadow inside and behind them, so frontal light flattens a vented panel into a printed pattern instantly. A raking key light is the single change that makes it read as three-dimensional.

Give it a background. Whether you use true transparency or a baked shadow, something needs to be visible behind the openings. A dim shape, a light source, or even a slightly different dark tone is what convinces the eye that the holes go somewhere.

Keep the grid aligned to the object. Real panels are punched square to their edges, so the aperture rows run parallel to the panel sides. A grid running at an arbitrary angle across a bulkhead is a small error that quietly makes the whole assembly look improvised.

Browse the collection

Metal is organized into volumes, each containing multiple packs, alongside separate photographic and lettering volumes. New volumes are added continuously.

View the full Metal collection →

Related: Plastic textures, Rubber textures.