- Saved and blended columns find solid layers that cap water at the water head
- Surface search passes over a water cap to the ground below it
- A capped column keeps its fluid height at the top of the cap
- A painted cap counts only where the blended column keeps the same blocks
- Saved terrain sources report their water surface
- Displacement fluid keys come from the first fluid at or below the fluid height
- Empty fluid keys never win the fluid blend
- Hydrology climate splits the land into wet and dry zones with a noise style
- Dry zones keep only the dryRainfall share of rainfall and pond density
- Zone edges ease across the transition band
- Policy climateZones exempts an area from the dry zones
- Policy fluid also fills streams and rivers that flow through the area
- Bank steepness reads the steepest natural ground between the bank and the water
- Bank edges roughen with smooth noise
- Natural ground heights reach the rasterizer at full precision
- Settings reject climate values outside 0..1
- Hydrology probes read the full precision natural heights
- /iris datapack export compiles a pack dimension into a 26.3 worldgen datapack
- Bukkit and mod loaders share the export arguments
- Pack compiler stages lower noise, terrain, caves, biomes, decoration, objects and structures to 26.3 resources
- Every approximation reports an export limit diagnostic
- Decorators and objects follow Iris placement rules for water, slope, height and support
- Procedural objects export their pre-built variants as templates
- Jigsaw exports share the template encoder and publisher with the worldgen export
- Both platforms expose vanilla data from the server classpath
- GoldenHashEngine and the export probes share one chunk spiral scan
- Headless 26.3 probes measure export cost and likeness against Iris
- Aquatic decorators place on the sea floor in water only
- Decorator waterlogging follows the placement site
- Templates never bake waterlogged blocks
- Object blocks outside the nominal box stay in the template
- Procedural objects export their pre-built variants as content-keyed templates
- Surface objects anchor on the ocean floor heightmap
- Surface objects reject leaf, log, or fluid ground under the origin
- Surface support checks test base corners with a slope-scaled drop
- Support ground search covers the full 16 block window
- MIN_HEIGHT, MAX_HEIGHT, and stilt modes sample terrain across every allowed rotation
- Procedural tree roots extend down to the ground
- Underwater objects need water and stay below the surface
- On-water objects anchor at the fluid surface
- Unsupported coral, sea pickles, and wall fans are left out of templates
- Object placements honor slopeCondition
- Two-block plants place both halves
- Shore decorators need solid ground below
- Decorator coverage matches the Iris style density
- Patchy decorator styles export as noise threshold patches
- Palette end weights round to the nearest count
- Ores in deepslate place their deepslate variants
- Pack description tells players to keep the Default pack selected
- Aquifer floods open sea cells near the fluid height
- /iris datapack export compiles one pack dimension into a worldgen datapack for Minecraft 26.3 and later
- Bukkit and mod loaders take the same version, mode, namespace, output, format, objects and replace arguments
- The default overworld mode replaces the Overworld of a new world with the default world type
- Preset and dimension modes write a selectable world preset or a separate dimension
- The export runs in the background and publishes the zip or folder atomically
- Pack compiler stages turn noise, terrain, caves, subterrain, biomes, surface, decoration, objects and structures into a version-neutral IR
- Capability lowering fits every field to 26.3 density function ranges
- Disjoint min and max nodes fold to the input that always wins
- The 26.3 writer emits density functions, noise settings, biomes, features, structures, presets and dimensions
- Every export carries the Iris logo as its pack.png
- Unused objects, templates and features are pruned from the output
- The pruner keeps pack.png without reading references from its bytes
- Imported pack datapacks are bundled into the export
- Every approximation reports an export limit diagnostic
- Generation cost is counted against a node budget and reported as a warning
- Cave biomes over the wall palette limit use the closest kept palette
- Jigsaw exports share the template encoder, block states, destinations and publisher with the worldgen export
- DataVersion carries the pack format minor and world data version
- Both platforms expose vanilla data from the server classpath
- GoldenHashEngine and the export probes share one chunk spiral scan
- Headless 26.3 probes measure export cost and compare column and chunk likeness against Iris
- Real-codec tests decode the exported resources with the 26.3 registries
- Paper registry tests run in isolated registry scopes
- Command help and messages cover the export in every language file
- Modded biome policy supplies the structure state key from the generator
- History worlds key structure state by the active epoch
- Studio worlds get a fresh transient key
- Tests cover the key binding and the structure state codec
- Lattice eviction sorts a snapshot of tile access stamps
- Concurrent tile use during eviction no longer breaks the sort
- Test covers eviction under concurrent fills
- Hydrology height lattice stores samples in tiles with least-recently-used eviction
- Evicted lattice cells are no longer sampled twice
- Pond rim columns go through the lattice column cache
- Window planning reads its coarse nodes from the fine lattice
- Prefetch stays inside the pregeneration area while a pregeneration runs
- Sea inlet splat compares squared distances
- Bounds sampling answers a column from region constants when every reachable biome shares the bounds
- Base terrain heights are shared through a per-column memo
- Chunk water rasters use per-chunk palettes and a larger cache
- Raster channel lookups use a 4-block segment grid
- Chunks with no water in reach return the empty raster directly
- Riffle spreads stop at cells that cannot reach the chunk
- Cave pool terrain is built only for chunks with a pool site
- Concurrent raster builds for one chunk share a single build
- Section buffers resolve air once and support bulk column reads
- Cave decoration, perfection and transition capture read bounded column windows
- Generation history claims and saved biome writes elect one writer per batch
- Natural cave decoration reads columns in sixteen-row windows and drops the window after each decorated zone
- Perfection reads cells directly after a spike is normalized instead of rereading the column below it
- Semantic claims and saved biome writes elect one writer per batch instead of queueing every caller on the monitor
- Waiting callers park until their batch settles and wake the next queued caller when the writer leaves
- Admission tests count parked followers as queued behind the history writer
- Bounds sampling answers a column from its region, land or sea type, or noise-picked biome when every biome it can still become shares the group bounds
- Base terrain heights are kept in a shared per-column memo for hydrology batches, terrain3D anchors and scalar sampling
- Hydrology height batches skip columns whose base height is already known
- The per-batch base height map and its thread local are removed
- The four inferred biome streams share one context region stream
- BakedStream exposes a baked-plane lookup without falling back to the source
- Tests cover region constants, the base height memo and bit-exact heights with and without region constants
- Limited chunk prefetch rings to the windows a bounded pregeneration still needs
- Forwarded pregeneration region bounds from the async, medieval and modded methods
- Restored unclipped prefetch when the pregeneration closes
- Added a runtime test for clipped and restored prefetch
- Stored lattice samples in compact 32x32 tiles with least-recently-used tile eviction
- Cached sampled pond rim columns in a block-resolution tile cache
- Read window coarse nodes from the fine lattice at stride 2
- Removed the window lattice and FineLatticeSource
- Sized the fine lattice for an eleven-window span and the region lattice for a seven-region span
- Updated lattice, planner and probe harness callers for the single fine lattice
- Section buffers resolve air once per buffer instead of on every empty read
- Section buffer writes remember the last palette entry they resolved
- Added bulk column reads to section buffers and the update-listening hunk
- Natural cave decoration, perfection and transition geometry capture read whole columns at once
- Iris execution contexts bind through a thread slot table instead of a ThreadLocal
- Semantic capture tracks resolved cave cells in a fixed bitmap instead of a BitSet
- Added tests for bulk column reads and for contexts when threads outnumber the slot table
- Indexed reach segments into a channel grid around each rasterized chunk
- Skipped sea inlet column checks outside each inlet's bounds
- Returned the empty raster for chunks with no water features in reach
- Added a test that covered channel lookups match the full segment scan
- Stored raster tiers fluids and feature ids as per-chunk palettes
- Derived cave ceilings from terrain heights and water heads
- Raised the water raster cache from 1024 to 8192 chunks
- Native provider classes load from the provider jars before the plugin class loader
- Another plugin bundling VolmLib natives no longer supplies Iris native capabilities on Spigot
- Tests cover provider jar classes taking precedence over the plugin loader
- Iris restores the JVM SIGQUIT handler when the server console replaced it
- The Java agent attaches on Spigot servers with a terminal console
- Tests cover restoring the handler after a console resets it
- The VolmLib stamp records a commit only when the checkout is its own Git repository
- A VolmLib copy inside another repository stamps an unknown commit
- LWJGL is no longer shaded into the Bukkit jar
- plugin.yml lists the LWJGL jars and Linux natives as Spigot libraries
- The Paper loader resolves the same plugin.yml list through the Maven Central mirror
- The packed payload no longer reserves the LWJGL natives prefix
- Tests cover reading the library list from the plugin jar
- Jigsaw connector tools are included in the Bukkit allowlist
- Jigsaw floor painting is included in the Bukkit allowlist
- MantleWriter no longer needs a Bukkit allowance
- The removed IrisPack class no longer has an allowance
- Rotatable jigsaw candidates try their rotations in random order
- Candidate connectors are tried by priority within each rotation
- Planar candidates must agree with every occupied neighbor socket
- Planar assembly falls back to source-only matching before it fails
- Connectors whose branch placed nothing stay open
- Spatial default kit covers all 24 Y-rotation topologies
- Planar start pool includes Blank at weight 1
- Vanilla spatial projects omit Iris themes and placement caps
- Vanilla spatial projects use max depth 4
- 1.21.1 export derives the vertical distance from the structure
- Workcell floors map the active variant's connectors
- Floor froglights mark up, down and up-down connectors
- Connector Tool places, moves, re-orients and removes spatial connectors
- Connector Tool re-seats planar face-center sockets
- Main menu pages workcells five at a time
- Spatial variants can be deleted while another variant remains
- Tool sticks act on the variant they were made for
- Destructive tool confirmation needs two separate clicks
- Pistons cannot extend into protected cells
- Autosave capture failures back off and notify the owner
- Autosave plays the save bell
- Hidden-connector air final states are stored as air
- Reset Connector Blocks clears unsaved markers
- Folia logout releases reset and resize reservations
- Spatial workcell rename relabels its variant
- Workcell teleports land inside the focused workcell
- Replacement layouts keep rendering and hydration working
- Container preview probes stay out of chat
- Non-owners can run commands that are not recognized as mutating
- Spatial resize or rotation past the workcell volume limit is refused
- Tests cover default kit assembly, connector placement, floor glyphs and menu paging
- /iris studio hotload and its refresh alias reload the open Studio pack on Bukkit
- Bukkit hotload refuses while Studio entry, pause or close is pending
- Modded servers register the same hotload and refresh commands
- Modded hotload reports busy while that Studio is already hotloading
- Hotload messages and help entries are localized in every language file
- Bukkit artifact verification reads the jar task output
- Multiplexor takes the Bukkit artifact from the packedJar task
- BukkitTestServer shares one-time registry setup across tests
- Tests and a gameplay scenario cover both hotload commands
- Container pressure excludes committed heap the JVM is not using
- Reclaim, pregen gating and status text use the adjusted figure
- Tests cover the committed heap subtraction
- Add dimension-wide hydrology density controls.
- Validate pond containment and shorelines at block resolution.
- Prioritize requested water plans and deduplicate prefetch work.
- Keep completed water previews visible while details load.
- Add pregeneration map navigation and Studio theme controls.
- Reject pack mutations during generation-registry capture.
- Merge the eight additional commits from PR #1254.
- Preserve closure guards while refreshing object and hidden 3D views.
- Stop hidden crossfade timers and verify frame retention.
- Merge the unified Studio interface and command entry points.
- Adapt water views and provisional sampling to basin hydrology.
- Restore diagnostic estimates and the biome water overlay.
- Fix render cancellation, preview closure, and platform position callbacks.
- Fall back to software rendering when native bindings are unavailable.
- Cover renderer, lifecycle, and scheduler regressions.
- The route-and-reject hydrology system and its probes are removed
- Hydrology is configured under dimension hydrology and per biome, region and dimension hydrologyPolicy
- riverPolicy and the old hydrology config types are gone
- Grid kernels cover priority flood, D8 routing, flow accumulation, basin extraction, breaching and stream burning
- A basin spills at its pour point and an interior bump can never be the spill
- Region plans cover 4096-block regions on a 64-block grid for major rivers and lakes
- Window plans cover 512-block windows on an 8-block grid for reaches and ponds
- Plans are cached in memory, persisted per world under iris/hydrology and keyed by pack, seed, world height and settings
- Only the main runtime of an engine persists plans and stores swap on hotload and default runtime change
- Demand rasters outrank prefetch and stopping pregen withdraws its queued prefetch
- Ponds come from natural basins, seeded cups and chained cups with strictly falling levels
- A pond level never exceeds its rim plus maxFill or the end grade of any inflow
- Pond outlet loops are opened at their lowest pond
- Reaches split at junctions, pond outlets and 256-block grid lines
- Reaches meander, fit the valley, grade to a running minimum and smooth with Chaikin passes
- Drops of two blocks or more get a lip and one-block corner steps become dry rim ledges
- Cascades and waterfalls write falling fluid from the mantle at level eight
- Inflows into region lakes end at the lake level
- River mouths and water beside the sea sit at the sea surface
- The per-chunk raster gives terrain height, water head, role, tier, fluid, cave ceiling and shore distance
- WaterRole codes are stable and exposed to packs through the WATER_ROLE engine stream
- WATER_HEAD replaces the old river engine streams and an unknown stream name fails the pack load
- Banks take SMOOTH, LINEAR, CONCAVE, TERRACED or CLIFF profiles
- Containment berms grow as tall as the water needs
- Columns within two blocks of water stay solid and keep no Terrain3D overhang
- Seam dams hold water where new chunks meet chunks generated earlier
- The transition blend skips hydrology-owned columns
- Caves stay at least two blocks below river and pond beds
- The painter is the only writer of still water
- Objects cannot open water, falls or bank ground and solid objects may stand in water
- On-water objects need fluid at their anchor column
- Floating child islands stay out of channels
- Sea inlets run inland from cliff coasts at sea level and end in a chamber pool
- Inlet passages are sealed against carvers, subterrain features and the post pass
- Cave pools settle into carved lows, keep one fluid and stay out of inlet space
- Pool and inlet cells use their own cave actions in mantle data
- Water vegetation lists sit on tiers, ponds and hydrologyPolicy with SEA_FLOOR, SEA_SURFACE and SHORE_LINE parts
- Pack validation compiles hydrology settings and rejects empty or water-holding palettes
- Chunk generation fails closed when its 3x3 water rasters are not planned
- /iris find covers stream, river, major river, cascade, waterfall, mouth, pond, lake, dam, sea inlet and cave pool
- Generation history records the new feature types and drops old hydrology entries
- The studio map draws water from rasters up close and from plans when zoomed out
- Pregen prepares the current region and one region ahead
- hydrologyProbe, riverTransectProbe, hydrologyBlockProbe, seaInletProbe and cavePoolProbe report containment, rises, seams, tick conversion and missing surface
- Test forks run with a 2 GB heap, a 60-minute timeout and the Mockito agent loaded explicitly
- Generation with hydrology off is unchanged
- Natural terrain capture scans columns as block state runs
- Biome samples reuse the palette index of an identical key
- Cave biome capture samples the subterrain planner directly when live
- Repeated object markers skip decoding
- Saved biome encoding hashes each distinct column once
- Bounds starcasts share whole-column base biome samples across threads through a heap-sized lock-free memo
- Erosion raster geometry tracks station owners in paged local arrays and builds its index map in first-visit order
- Structure volume caches read through concurrent maps and publish only current builds
- Natural terrain receipts reuse a per-thread deflater with the platform gzip framing
- Tests pin receipt and saved biome bytes across reused compressors
- Clump randoms use a plain-field LCG with the RNG sequence and a step jump
- Single-block palettes build footprints from row masks and jump the pick draws
- Ellipsoid nodes, row offsets and node sines reuse thread scratch and size tables
- Terrain-scoped footprint plans that cannot reach the chunk surface are skipped
- Above-terrain plans are skipped when no solid host sits above the surface
- Preparation runs as at most four balanced slices with one join per chunk
- Placement caches target, bedrock and replaceable checks per block state
- Roots without selectable children resolve to themselves before the per-column child cache
- Selection plans build through one shared helper for root checks and child selection
- ChunkBakeCache.fillColumns batches the missing requested columns of one chunk plane and publishes them
- BakedDoubleStream and BakedStream expose fillColumns with the per-column fallback when memoization is not allowed
- Carve profile field reads heights, regions, surface and cave biomes from the nine overlapped chunk planes
- Fluid presence samples the fluid plane only for columns below the fluid height
- Carving reuses one dimension carving resolver state per thread scratch
- Bake recent-entry memo holds a 16-slot per-thread chunk table instead of one entry
- Subterrain cells for carve and decoration resolve through a per-chunk sampler with a column height hull instead of per-block engine dispatch
- IrisEngine subterrain lookups read the thread frame and runtime once and memoize the dimension gate, removing the per-call disabled-component list scan
- Unrouted workers resolve cave biomes through the captured carving snapshot and column cache with subterrain biomes checked first
- Captured cave biome lookups bypass the per-voxel hash cache
- Internal carve walls come from word-level column masks instead of hashed neighbor puts, painted after cheap solidity and surface checks
- Floor and ceiling layers are memoized per column when the biome layers do not depend on the zone height
- Zone scanning walks carved runs, the decoration scan memoizes block solidity and reuses the previous block, and waterlogging normalization skips snapshots without hydrology
- Boundary walls read own cells straight from the snapshot; the unused snapshot face builder and face accessors are removed
- Terrain batch scratch marks reset in finally blocks so a failing kernel cannot grow the scratch
- Generator evaluation counters only count when generation counters are enabled
- Core tests run with generation counters enabled
- Bake capacity derived from the heap (13 KB per entry against 1/32 of maxMemory, 2048 to 32768 entries); detached runtimes use the floor
- Pregeneration profile no longer raises the global noise cache size or the bake; it only raises burst parallelism
- Removed the hydrology bake reservation, noise cache budget, expansion machinery and the tile cache terrain preparation hook
- Bake thread recents compare a generation counter; clear empties retired entries
- Removed unused column bake, bake registry and bake accessors
- Object placement bakes split into one per-object layout (palette, tiles, canopy) and per-variant offsets
- Variants beyond the per-object limit are built transiently instead of clearing the variant map
- High-variant golden and no-rebuild tests
- A caller whose submission window is full runs the next component itself instead of parking
- Pass barriers run still-queued component tasks in reverse order before waiting
- Queued component tasks reopen the submitting generation's runtime scope on whichever thread runs them
- Helpers only run queued tasks bound to their own runtime or when they hold none
- A finished submission no longer reports a task as dropped once a helper started it
- Burst worker scope test keeps one stage on a worker while the caller helps
- Cell lattice passes gather every missing corner sample of the pass and evaluate base, detail and modules through NoiseProgram.fillPoints3D
- Warp B samples and single-row warp A samples are evaluated as one point batch per pass; longer warp A runs keep fillColumn3D
- Module bands compact their points before the batch call and scatter back in the original accumulation order
- Lattice batch buffers and their NoiseScratch live in a per-thread CaveLatticeBatch chain that nested carves acquire separately
- Lattice test compares pass-wide point batches against scalar plane density bit for bit
- Hydrology planner height reads reserve bake capacity up to the hydrology cache target from the shared budget
- Planner reservation is released when the complex closes
- Log transaction writes in parallel arrays instead of mutation records
- Replay source plans straight from their packed cells without decoding records
- Build source plans from a log slice
- Journal commit originals in a packed-key set instead of a linked map
- Buffer cave object writes in parallel arrays
- Drop the now-unused import in the runner
- Hydrology planner height and natural samples memoize columns in the bake like other reads
- Batched planner base heights publish into the base plane
- Removed the direct-mapped sparse base height memo
- Only bounds lattice biome reads stay out of the bake
