The fabric of architecture school in 1972, the fabric of indie movie wardrobes from the same decade, the fabric of every Wes Anderson character's trousers. Corduroy is a weft-pile cotton — the pile is woven in extra weft yarns that float over multiple warps and are then cut down the middle of each float, producing the parallel cord-like ridges (the wales) that run vertically up the fabric. Wale count is the classifier: pinwale is 16–21 wales per inch (shirting), midwale is 11–15, wide-wale is 6–10 (jumbo cord, the elephant cord of the seventies, the trouser canon). The deep ribs catch shadow at any oblique angle, which is why corduroy is photographic and recognizable across a room. Mood Fabrics is the designer retail canon; vintage and milled-in-Italy variants are increasingly common since the early-2020s heritage-fashion revival.
Weft-pile weave on a corduroy loom — extra weft yarns (filling) float over 3, 4, or 5 warp ends and are then cut down the center of each float by a circular knife array running across the width of the goods, releasing the pile. The cut floats stand perpendicular to the back and the un-cut warp grounds form the binding structure. Wide-wale (6–10 wales per inch) uses a longer float and produces a deeper pile — typically 2–3 mm. Cotton fiber typically 20–40s yarn for the ground, 12–20s for the pile. Fabric weight 350–550 g/m² for wide-wale grades. Pile is brushed and singed during finishing to lay the cut tufts in a uniform direction. Stretch corduroy adds 2–3 percent elastane to the weft for trouser comfort. Sews readily with a sharp universal needle and matched thread; the seam is brushed in the direction of the pile to hide the join. Wales must be matched between panels for visual continuity — corduroy is one of the most direction-sensitive fabrics in the cutting room.
Principled BSDF defaults derived from the sphere fibrous finish. Reasonable seed for Blender, Substance, Keyshot, Rhino — tune per material. Or grab the whole library at once: ForMaterials library →
# finish: fibrous albedo #7a5230 metallic 0.00 roughness 0.70 ior 1.45 transmission 0.00 clearcoat 0.00 sheen 0.70 anisotropic 0.50
{
"albedo": "#7a5230",
"metallic": 0.0,
"roughness": 0.7,
"ior": 1.45,
"transmission": 0.0,
"clearcoat": 0.0,
"sheen": 0.7,
"anisotropic": 0.5
}
# Blender 4.x — Principled BSDF
# Cotton Corduroy, Wide Wale · finish: fibrous
import bpy
mat = bpy.data.materials.new(name="mat_corduroy_wide_wale")
mat.use_nodes = True
bsdf = mat.node_tree.nodes["Principled BSDF"]
bsdf.inputs["Base Color"].default_value = (0.1946, 0.0844, 0.0296, 1.0)
bsdf.inputs["Metallic"].default_value = 0.000
bsdf.inputs["Roughness"].default_value = 0.700
bsdf.inputs["IOR"].default_value = 1.450
bsdf.inputs["Transmission Weight"].default_value = 0.000
bsdf.inputs["Coat Weight"].default_value = 0.000
bsdf.inputs["Sheen Weight"].default_value = 0.700
bsdf.inputs["Anisotropic"].default_value = 0.500
# KeyShot 11+ — lux Python API, Generic material
# Cotton Corduroy, Wide Wale · finish: fibrous
# Run from Window → Scripting Console
import lux
mat = lux.createMaterial(name="mat_corduroy_wide_wale", materialType="Generic")
mat.setProperty("diffuse", (122, 82, 48)) # 8-bit sRGB
mat.setProperty("metallic", 0.000)
mat.setProperty("roughness", 0.700)
mat.setProperty("indexOfRefraction", 1.450)
mat.setProperty("transparency", 0.000)
mat.setProperty("coatingWeight", 0.000)
{
"_format": "Substance Designer / Painter \u2014 pbrMetalRough constants",
"_about": "Cotton Corduroy, Wide Wale \u00b7 finish: fibrous",
"baseColor": {
"r": 0.1946,
"g": 0.0844,
"b": 0.0296
},
"metallic": 0.0,
"roughness": 0.7,
"ior": 1.45,
"opacity": 1.0,
"anisotropyLevel": 0.5,
"_notes": "Channels listed are the standard Substance pbrMetalRough output. Drop into a Uniform Color node per channel, or as the constant input on a layered stack."
}{
"asset": {
"version": "2.0",
"generator": "ForMatter"
},
"materials": [
{
"name": "mat_corduroy_wide_wale",
"pbrMetallicRoughness": {
"baseColorFactor": [
0.1946,
0.0844,
0.0296,
1.0
],
"metallicFactor": 0.0,
"roughnessFactor": 0.7
},
"extensions": {
"KHR_materials_ior": {
"ior": 1.45
},
"KHR_materials_sheen": {
"sheenColorFactor": [
1.0,
1.0,
1.0
],
"sheenRoughnessFactor": 0.7
}
}
}
]
}# USD Preview Surface — UsdShade.MaterialLook prim attributes
# Cotton Corduroy, Wide Wale · finish: fibrous
def Material "mat_corduroy_wide_wale" {
token outputs:surface.connect = </mat_corduroy_wide_wale/PreviewSurface.outputs:surface>
def Shader "PreviewSurface" {
uniform token info:id = "UsdPreviewSurface"
color3f inputs:diffuseColor = (0.1946, 0.0844, 0.0296)
float inputs:metallic = 0.000
float inputs:roughness = 0.700
float inputs:ior = 1.450
float inputs:opacity = 1.000
float inputs:clearcoat = 0.000
token outputs:surface
}
}
Textile Exchange Material Snapshot Cotton; Brisbane Moss / pile-fabric mill literature.
House vocabulary — terms ForMatter uses with intent.
Materials and processes for people who design and make things.
A local-first library of materials, processes, applications, and finishes — equal weight, citable everywhere, with cost-over-volume curves, trade-off profiles, equipment-tier filters, and second-life paths layered onto the data so a student can move from "what is this" toward "what's actually buildable here, now, by me." Part of the renato.design ecosystem — sibling of Plenum, Specimen, Ingenue, gesture, graf, and the Renato Rhino plug-ins. Form and matter, inseparable.
Half of teaching materials is teaching how the material is made into the thing. The standard subscription library was always light on that half. The wedge here isn't better samples or a prettier interface — it's treating Process as a peer entity, not a footnote.
Conway's Material World on raw materials, Lefteri's Making It on processes, Forty's Concrete and Culture, Sparke's Design in Context, Bürdek's Design: History, Theory and Practice of Product Design, Schröpfer's Material Design on materials in architecture, Winchester's The Perfectionists on tolerance, Minshall's Your Life Is Manufactured on the global supply chain, von Busch's Making Trouble on material activism, Were's How Materials Matter, Hegger / Drexler / Zeumer's Basics Materials, Untracht and McCreight on metalsmithing, USDA Forest Products Lab on woods, GIA on gemstones, Schott / CoorsTek / Toray / Owens Corning datasheets, MakeItFrom for verifiable property numbers, ASM Handbook, ISO standards. Museum holdings draw from the Met, MAD, V&A, Smithsonian American Art Museum, Newark Museum of Art, British Museum, Heard Museum, Smithsonian NMAI, Eiteljorg Museum, Philadelphia Museum of Art, Cranbrook Art Museum, and Grand Rapids Art Museum — collection-record permalinks only, designer overview pages and exhibition listings excluded. Voice blocks now ride on every entry kind — material, process, application, and finish — and include Ruskin on iron, Anni Albers on twining, Greg Lynn on the shred-and-teeth NURBS lineage, Pugin on the metal that won't be hammered, Barthes / Yanagi / Benjamin channeled within their philosophy; Sparke, Bürdek, Forty, Conway, Schröpfer, Minshall, von Busch, Lefteri, Pat Pruitt, Mary Lee Hu, Tom Joyce, Albert Paley, and the rest of the contemporary makers quoted verbatim with citation. All cited.
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