What's New in 0.3.0

New Features

• Biome Volumes (AIOCBiomeVolume) — drop volumes into the world to override noise frequency, tunnel radius, wall thickness, and terrace steps per-region with priority-based blending
• Carving Component (UIOCCarvingComponent) — attach Sphere, Box, or Capsule shapes to carve guaranteed open space with organic smoothstep falloff
• Runtime Carving API — CarveAtLocation(WorldLocation, Radius) for gameplay-driven cave modification
• Streaming Manager (IOCStreamingManager) — chunk-based world streaming for large cave networks
• Character Support (IOCCharacter) — auto-teleports to cave entrance at BeginPlay
• Default Cave Material — new actors ship with MI_IOC_CaveWalls instead of the engine checkerboard
• Showcase Demo — IOC.SpawnShowcase / IOC.ClearShowcase console commands for cinematic flythrough across 7 feature sections
• Advanced Noise — multi-octave fBm with Lacunarity, Persistence, Macro Chamber Weight, Ridged Detail Weight, Interior Density Bias
• Poisson Disk Scattering — optional minimum-distance constraint for decoration layers

Improvements

• Details Panel Overhaul — consolidated 12 scattered categories into 6 logical groups (IOC, Tunnel, Shape, Appearance, Decoration, Advanced)
• Backface Geometry — inner tunnel walls now receive light without two-sided materials
• Smooth Tunnel Endpoints — SmoothStep tapering replaces hard cutoffs
• Gradient-Scaled Wall Padding — eliminates hovering/disjointed fragments
• Per-Quad Vertices — fixes invisible faces and mesh holes from non-manifold edges
• Preset Protection — auto-switches to Custom when parameters are manually edited
• Ground-Level Entrances — tunnel centerline raised so entrance sits flush at actor origin
• Two-Stage Frequency Clamping (Nyquist + Gradient) — prevents mesh tearing and shredded artifacts
• Multi-Spline Branching — Distance Field unions for T/Y-junctions
• Cancellation Support — in-progress generation can be interrupted

Bug Fixes

• Fixed shredded mesh / checkerboard artifacts from high-frequency noise aliasing
• Fixed race condition in DecorationLayers async access
• Fixed console command delegate leak in ShutdownModule
• Fixed biome frequency mismatch when radius is overridden without frequency

Full Changelog

See Changelog.md for the complete version history.

Note: All versions prior to 0.3.0 are deprecated. Please upgrade to 0.3.0 for the latest fixes and features.

Deprecated — Please use v0.3.0 instead.

v0.2.0 — Initial Release (2026年02月05日)

• Perlin Tunnel generation with configurable Start/End points
• Cellular Automata noise-based cave generation
• Async generation (background thread, no Game Thread lag)
• Smart vertex colors (floor/wall/ceiling channels)
• Decoration scattering with HISM instancing
• Triplanar UV generation
• Spline-based tunnel paths
• Domain Warping and Terracing
• BakeToStaticMesh editor utility
• PCG node integration

This version has known mesh artifacts and stability issues that are fixed in v0.3.0.