Absolute Realistic Door Light

1.0.0

First release, for Minecraft 1.20.1 (Fabric, Forge), 1.21.1 (Fabric, Forge, NeoForge) and 26.1, 26.2, 26.3 (Fabric, NeoForge).

• Closed doors and trapdoors stop block light and sky light. Opening them by hand or by redstone brings the light back immediately.
• Door halves with a window let a faint glow through: a lantern right in front leaves light level 2 behind it. Both halves of a door are handled separately.
• Vanilla doors and trapdoors use profiles checked against every original texture, including copper (1.21+), pale oak (26.1+) and poplar (26.3).
• Doors and trapdoors from other mods are checked automatically: the server reads their block models and textures and finds real window openings per door half. Tested with Macaw's Doors.
• The server decides and sends the result to every player, so client resource packs cannot change it.
• The open part of a closed door block is drawn with the light of the side it is open to, and smooth lighting never blends light across the leaf: no glowing door frames, with smooth lighting on or off. Works with the vanilla renderer, NeoForge's smooth lighting and Fabric's Indigo renderer.
• Another Furniture (optional): all 27 curtains and shutters block light when closed.
• Light saved before the mod was installed is recalculated around doors as chunks load and after a datapack /reload.
• Datapack block tags for pack makers: windowed, windowed_upper, windowed_lower, opaque, extra_barriers, excluded.