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procedural textures

Layered sandstone

Generate tileable PBR maps of layered sandstone: wavy strata of uneven thickness, cross-bedding, differential erosion and optional honeycomb weathering. Use for cliffs, canyon walls, building stone and desert rock.

Recorded render of Layered sandstone

What this component contains

  • ATTRIBUTION.md
  • LICENSE
  • README.md
  • blender_material.py
  • component.json
  • material.tres
  • pngio.py
  • preview.png
  • sandstone_strata.py
  • test_package.py
  • texkit.py
  • verification/native.json

How it works

Entry point
generate
Maps
albedo, normal, roughness, height, ao
Parameters
strata, thickness_variation, waviness, cross_bedding, erosion, honeycomb, hue_shift, saturation and 1 more
Presets
default, buff, tafoni_coast, swirled, grey_flagstone
Tileable
yes
Command line
python sandstone_strata.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)

Recorded checks

godot 4.7.2.stable.official.ed1daf0bf

  • 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

Limits to consider

Strata run across the tile height, so a wall must be oriented with its bedding horizontal in UV space. Cross-bedding is a periodic lamina pattern, not a sediment simulation. Honeycomb pits are Voronoi cells. Occlusion is a blurred-height estimate.