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procedural textures

Lava crust with glowing cracks

Generate tileable PBR maps of a lava flow: dark cooling crust plates with ropy wrinkles over molten cracks, with an emissive map whose colour follows a heat ramp. Use for volcanic ground, forges and fantasy hazards.

Recorded render of Lava crust with glowing cracks

What this component contains

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

How it works

Entry point
generate
Maps
albedo, normal, roughness, height, ao, emissive
Parameters
plates_across, crack_width, heat, rim_glow, ropes, fragmentation, hue_shift, saturation and 1 more
Presets
default, cooling, clinker, lava_lake
Tileable
yes
Command line
python lava_crust.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

The glow is a colour ramp of crack depth, not a blackbody or flow simulation, and it does not animate. Plates are Voronoi cells. Emission strength must be set in the engine; the map holds colour only. Occlusion is a blurred-height estimate.