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Riven slate

In your harnessProcedural textureMIT

Generate tileable PBR maps of riven slate: cleft terraces with short steps, fine riving lines, tone changes between sheets and rusty iron spots. Use for roof slates, floor slabs, paving and wall cladding.

Render of Riven slate
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
terraces, terrace_scale, step_softness, riving, iron_spots, tone_variation, hue_shift, saturation and 1 more
Presets
default, green, heather, rusty_multicolour, black_honed
Tileable
yes
Command line
python slate_cleft.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. Terraces are a quantized noise field, an approximation of cleavage; real slate also shows cleavage steps along straight lines, which this does not force. Iron spots are round stamps. Occlusion is a blurred-height estimate.

Details

Kind
Procedural texture
Engine
Python 3.10 or later
Files
12 files, 239.4 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
Quantized fractional Brownian motion with smoothed steps for terraces, Domain warping with tileable gradient noise, Anisotropic noise for riving streaks, Soft round stamps for iron spots, Height to tangent-space normal by central differences
Tags
texture, pbr, tileable, slate, stone, riven, terraces, procedural
Identity
library.supply.creative_originals.88583511da78b406aee32a57.bfdc4e49a3a98e3a
Version
bfdc4e49a3a98e3a36100fa561ea773cee0db9908896ecc19214e0adb9e9f4c2

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

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