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Planned direction for TerrainForge. Order and scope may change; done items ship in the listed release.

Done

0.3.x — Brush & UI foundation

• Free-form terrain brush (Flatten, Raise, Lower, Smooth, Ramp, Shore, Paint, Restore, Snow) beyond the vanilla ±8 m limit.
• 5 brush shapes: Circle, Square, Line, Rect, Polygon.
• 3 falloff modes (Two-point, Fixed-angle, Path) and configurable Shore falloff.
• Undo / Redo and terrain snapshots (full backup / restore).
• Terrain stamps (copy / paste) with an on-disk library and preview.
• Rectangle selection stamp (A→B) — copy exactly the marked rectangle, cropped to the vertex level.
• Valheim-native UI (Averia typeface, Valheim palette), radial menu (Q), keybind remapping (F5), persistent HUD.
• Slope heatmap (H) and height heatmap (J).
• Brush profiles and presets.
• 14 in-game languages with auto-detect, plus a full wiki manual in 14 languages.

Planned

0.4.0 — "Advanced Tools"

• Blueprint ghost system: translucent preview with a snap grid (1 m / 2 m / 4 m) and rotation steps (90° / 45° / 15°).
• Stamp Preview Pro: real contour lines drawn over the terrain.
• Live measurement HUD while marking (distance / area / slope).

0.5.0 — "World Building"

• Non-biome textures + a per-biome / custom selector.
• Complete blueprint system (save / load / place).
• Multiplayer: stamp sync between clients and per-rank permissions.

0.6.0 — "World Builder"

• Blueprint library (save / load / share).
• Terrain prefabs (templates) and a biome painter.
• River / road tool driven by a spline.
• Performance: chunk streaming, LOD for large stamps, multithreading.

Under evaluation

• Non-biome textures: the terrain uses a single material per heightmap with a mask that only picks dirt / cultivated / paved / snow inside the biome palette. There is no exposed biome → material map, so this is a client-side, fragile hack. A shader/texture-slot diagnostic has been added to the log to assess feasibility.