Lighten Up, Chunks!

- Minecraft version: 26.3. - Select relight areas with Chunky-style shapes, centers, radii, or corners using /luc; the default scan now covers the whole world. - Relighting never generates chunks: it preflights saved FULL chunks, blocks generation while relighting, and skips chunks replaced during the operation. - Edge chunks can now be relit; chunks with missing neighbours are skipped. - Region data is read without opening region files for writing. - Saves and Voxy notifications are coalesced once per chunk, with same-tick worker refill and per-dimension workers; a 500-block test ran about 20-30% faster. - Failed or interrupted relights are handled safely and are not treated as successfully saved. - Fix a C2ME/Starlight compatibility issue that could leave dark patches. - Log a [LUC timings] line with per-stage relight timings. - Notify Voxy and VoxyServer after relighting.

- Minecraft version: 1.21.11. - Select relight areas with Chunky-style shapes, centers, radii, or corners using /luc; the default scan now covers the whole world. - Relighting never generates chunks: it preflights saved FULL chunks, blocks generation while relighting, and skips chunks replaced during the operation. - Edge chunks can now be relit; chunks with missing neighbours are skipped. - Region data is read without opening region files for writing. - Saves and Voxy notifications are coalesced once per chunk, with same-tick worker refill and per-dimension workers; a 500-block test ran about 20-30% faster. - Failed or interrupted relights are handled safely and are not treated as successfully saved. - Fix a C2ME/Starlight compatibility issue that could leave dark patches. - Log a [LUC timings] line with per-stage relight timings. - Notify Voxy and VoxyServer after relighting.

- Minecraft version: 26.2. - Select relight areas with Chunky-style shapes, centers, radii, or corners using /luc; the default scan now covers the whole world. - Relighting never generates chunks: it preflights saved FULL chunks, blocks generation while relighting, and skips chunks replaced during the operation. - Edge chunks can now be relit; chunks with missing neighbours are skipped. - Region data is read without opening region files for writing. - Saves and Voxy notifications are coalesced once per chunk, with same-tick worker refill and per-dimension workers; a 500-block test ran about 20-30% faster. - Failed or interrupted relights are handled safely and are not treated as successfully saved. - Fix a C2ME/Starlight compatibility issue that could leave dark patches. - Log a [LUC timings] line with per-stage relight timings. - Notify Voxy and VoxyServer after relighting.

- Minecraft version: 26.1.x. - Select relight areas with Chunky-style shapes, centers, radii, or corners using /luc; the default scan now covers the whole world. - Relighting never generates chunks: it preflights saved FULL chunks, blocks generation while relighting, and skips chunks replaced during the operation. - Edge chunks can now be relit; chunks with missing neighbours are skipped. - Region data is read without opening region files for writing. - Saves and Voxy notifications are coalesced once per chunk, with same-tick worker refill and per-dimension workers; a 500-block test ran about 20-30% faster. - Failed or interrupted relights are handled safely and are not treated as successfully saved. - Fix a C2ME/Starlight compatibility issue that could leave dark patches. - Log a [LUC timings] line with per-stage relight timings. - Notify Voxy and VoxyServer after relighting.

Lighten Up Chunks 1.2.0 updates the mod for Minecraft 26.2 and introduces a substantially simplified command system inspired by Chunky. ## Added - Added a persistent, configurable relighting selection. - Added selection commands for:Dimension - Shape - Centre - Radius - Region corners - Relighting mode - Added `/luc selection` to display the current configuration. - Added support for square, circle, rectangle, and whole-world selections. - Added tests covering selection and shape transitions. ## Changed - Updated to Minecraft 26.2. - Updated Fabric Loader to 0.19.3. - Updated Fabric API to 0.157.0+26.2. - Updated Fabric Loom to 1.17. - Updated Gradle to 9.5.1. - Updated ModMenu to 20.0.1. - Reworked commands into a Chunky-style configure-then-start workflow: ``` /luc world [dimension] /luc shape <square|circle|rectangle|world> /luc center [x z] /luc radius <radius> [radiusZ] /luc corners <x1 z1 x2 z2> /luc mode [missing-only|full|full-2-pass] /luc selection /luc preview /luc start /luc progress /luc pause /luc continue /luc cancel ``` - Simplified dimension discovery and world-folder resolution using direct Minecraft 26.2 APIs. - Simplified chunk tracking and resend handling. - Updated the configuration screen for Minecraft 26.2. - Updated the README with the new workflow and examples. ## Optimised - Removed over 800 net lines of obsolete compatibility and duplicate command code. - Avoided calculating chunk ticket areas twice during task submission. - Reduced the number of required mixin accessors. - Replaced reflection-based API discovery with direct calls to Minecraft 26.2 APIs. ## Security - Persisted chunk NBT is now read with a bounded allocation quota instead of allowing unlimited heap allocation. ## Removed The following redundant commands and command variants were removed: - `/luc estimate` - `/luc status` - `/luc dimensions` - `/luc reset` - `/luc region` - `/luc resume` - Direct coordinate arguments under `/luc start` - Direct coordinate arguments under `/luc preview` Use `/luc progress` instead of `/luc status`, and `/luc continue` instead of `/luc resume`. ## Breaking changes Existing scripts or command blocks using removed command variants must be updated to the new selection workflow. For example: ``` /luc world minecraft:overworld /luc shape circle /luc center 0 0 /luc radius 5000 /luc mode missing-only /luc preview /luc start ```

## v1.1.0 ### Changed - Updated Lighten Up, Chunks! for Minecraft 26.1.2. - Updated Fabric Loader, Fabric API, Loom, Gradle, and Java toolchain support. - `/luc start` now defaults to scanning the whole current world/dimension when no explicit selection is configured. - `/luc preview` and `/luc estimate` also default to the whole current world/dimension. ### Added - Added `/luc estimate` as an alias for `/luc preview`. - Added `/luc config get <key>` for checking individual config values. - Added clearer diagnostics showing the exact region folder checked when no chunks are found. ### Fixed - Fixed world/dimension region scanning by using Minecraft’s own storage API. - Fixed Minecraft 26.1.2 API compatibility issues for `ChunkPos`, GUI rendering, and boss bars. - Fixed command feedback so broadcast-to-ops behavior is respected. - Fixed radius/region selections binding to the current dimension.

**Lighten Up, Chunks!** is a Fabric mod for rebuilding lighting in already-generated chunks. It’s designed for worlds where saved light data is missing, broken, or stale, causing black chunks, dark patches, or incorrect long-distance rendering in tools like Voxy. Instead of requiring players to manually travel through affected terrain, the mod processes existing chunks in bulk and writes corrected lighting back to disk. It supports whole-world scans, targeted region scans, and radius-based scans, with progress tracking, config options, and commands inspired by Chunky. Features: - Relight existing chunks in bulk - World, region, and radius scan modes - Designed for fixing broken saved lighting, not generating new terrain - Writes corrected lighting to disk - Sends updated chunk/light state back to connected clients - Boss bar progress display with configurable info - Mod Menu config support - Singleplayer-friendly workflow - Commands similar to Chunky Use cases: - Fix black or unlit chunks in **old worlds**/**optimized worlds** - Repair stale lighting after modpack changes or broken saves - Improve distant world rendering for Voxy and similar LOD tools - Relight a specific damaged area without touching the whole world - Process an entire explored world over time