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Veined marble

In your harnessProcedural textureMIT

Generate tileable PBR maps of polished or honed marble with long branching veins, soft clouds and fine secondary veins. Use for floors, counters, wall cladding and sculpture bases.

Render of Veined marble
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, height, ao
Parameters
vein_spacing, vein_direction, vein_width, flow, secondary_veins, cloudiness, polish, hue_shift and 2 more
Presets
default, calacatta, nero, verde, rosso
Tileable
yes
Command line
python marble_veined.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. Veins are zero crossings of warped anisotropic noise, an approximation of mineral-filled fractures, not a geological simulation; vein directions are limited to five whole-tile shears so the texture repeats. Relief is very shallow by design. Colours are artistic, not measured from named quarries. Occlusion is a blurred-height estimate.

Details

Kind
Procedural texture
Engine
Python 3.10 or later
Files
12 files, 212.4 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
Zero crossings of anisotropic fractional Brownian motion as vein curves, Distance to an isoline from the field gradient for constant-width lines, Domain warping with tileable gradient noise, Whole-tile shear as a torus automorphism, Height to tangent-space normal by central differences
Tags
texture, pbr, tileable, marble, stone, veins, polished, procedural
Identity
library.supply.creative_originals.de627eb17f532b11afb4cca8.bc49c9090c649cef
Version
bc49c9090c649cefb4caed985bc547256d476c6639ad308bb2874866b900f03c

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

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