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Perforated metal sheet with alpha holes

In your harnessProcedural textureMIT

Generate tileable PBR maps of perforated sheet metal with alpha cut-outs: staggered or straight round holes, square holes, slots or hexagons on a repeating lattice, with punching burrs, rolled grain and optional paint. Use for grilles, speaker covers, screens, stair treads and facades.

Render of Perforated metal sheet with alpha holes
The render its check recorded in Godot 4.7.2, 256 by 256 pixels.

What it takes and gives

Entry point
generate
Maps
albedo, normal, roughness, metallic, height, ao
Parameters
pattern, holes_across, open_area, burr, paint, grime, hue_shift, saturation and 1 more
Presets
default, square_black, slotted_grille, hex_speaker, straight_round_brass
Tileable
yes
Command line
python perforated_metal.py --size 1024 --seed 7 --preset NAME --out DIR [--width W --height H] [--set NAME=VALUE] [--directx-normal] [--orm]
Godot material
material.tres
Blender builder
blender_material.build_material(folder)

Limits. Holes are cut through the albedo alpha, so the material needs alpha scissor or blending, and the hole walls have no thickness. Burrs are a thin height ring. The lattice runs edge to edge; real sheets keep solid margins this tile lacks. Occlusion is a blurred-height estimate, not ray traced.

Details

Kind
Procedural texture
Engine
Python 3.10 or later
Files
12 files, 217.9 KB
Licence
MIT
Declared effects
runs commands, writes files
Checked with
Godot 4.7.2, gl_compatibility
Checks
command line generates declared maps, maps decode, maps have declared size and channels, maps tile without a seam, normal vectors unit length facing out, maps carry detail, godot imports the maps, godot material template loads every map, godot compatibility render, capture shows the textured surface, blender builds the material
Techniques
Hexagonal and square hole lattices with whole-number counts, Signed distance functions for circle, rounded square, stadium slot and hexagon, Alpha anti-aliased over one pixel, glTF metallic-roughness split between paint and bare metal
Tags
texture, pbr, tileable, metal, perforated, grille, alpha, cutout
Identity
library.supply.creative_originals.caf394fdfd775268835db51a.8ef456a8ffc21bdd
Version
8ef456a8ffc21bdd20482d1cbcc5d3677c2327ef449ef18e6a608655d1d762eb

The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.

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