Flashlight: Shader Light Engine

Minecraft 26.1.x · Fabric Loader ≥ 0.19.3

New

• Night Vision Goggles — worn on the head, toggled with G. Honest overexposure: daylight, torches and flashlight beams burn out to pale green per-pixel. ~3 s tube warm-up synced to the power-on sound, film grain, 576-line scanline effect. Powered by an AA battery (30 min) with hot-swap on the same key. Craft-only.
• Signal Flare — right-click to ignite, thrown in an arc, lands and burns for 60 s. Red point light from the flashlight engine + a column of red smoke. Cannot be extinguished.
• Sounds — flashlight click, focus zoom, NVG on/off, work lantern hum (loop). Subtitles in en/ru.
• Loot & recipes — flashlight and batteries in villages, work lantern and battery packs in dungeons/mineshafts/strongholds.

Engine

• Per-chunk light limit: at most 4 sources per chunk, global cap raised 16 → 32 — a crowd of flashlights in one spot no longer starves light in neighboring chunks.
• Faster, softer shadows: distance-based LOD (5 rays up close, 1 beyond ~25 blocks where the penumbra is subpixel anyway), a two-radius sample disk + interleaved gradient noise instead of a static pattern.
• Voxel occluder v2: only slices with actually-changed blocks get rescanned — a static world no longer burns ~14,000 block checks per frame.
• Entity shadows no longer flicker on teleport / dimension change.
• GPU resources and native memory are released when leaving a world.

Fixes

• A landed flare no longer sinks or jitters for other players (landed state is now synced).
• The reload pose no longer flickers with items in both hands and is frame-rate independent.
• NVG warm-up freezes while the game is paused; no residual blind flash after rejoining a world.
• Creative mode no longer drains charge or consumes batteries.
• Scroll-wheel focus now works for an off-hand flashlight.
• Rate limit on NVG toggle packets (sound anti-grief).