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procedural textures

Leaded stained glass in three layouts

Generate tileable maps of leaded stained glass: irregular cathedral pieces, diamond quarries or circles in squares, each pane a hashed glass colour with streaks and seed bubbles in raised lead came, with an emissive map of the light through it. Use for church, Victorian and fantasy windows and lamps.

Recorded render of Leaded stained glass in three layouts

What this component contains

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

How it works

Entry point
generate
Maps
albedo, normal, roughness, metallic, height, ao, emissive
Parameters
layout, pieces, lead_width, streaks, seeds, glow, hue_shift, saturation and 1 more
Presets
default, diamond_quarries, victorian_circles, amber_opalescent
Tileable
yes
Command line
python stained_glass.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

A flat panel without refraction, transmission depth or painted figures and grisaille. Glass colour, streaks and bubbles are stylized; streak directions come from a small set of whole-number vectors so they repeat across the tile edge. Solder blobs are drawn only where quarry leads cross. Backlighting is an emissive map of glass colour, not a light transport model, and the engine sets its strength. Occlusion is a blurred-height estimate.