Changelog

All notable changes to Builder Tools are documented in this file.

0.2.0 — 2026-08-28

Fixed

• Vertical slabs were invisible. The vertical-slab model transformed its baked quads with 0..16-style translations (8/16) inside a pipeline that expects block-local 0..1 units, so every vertical slab rendered about eight blocks away from its cell. Translations are now 0.5/1.0 and the slabs render exactly where they are placed (this also fixed the long-standing invisible texture on vertical slabs).
• Rotated-block slab placement — fully rewritten around shared local-frame math (RotatedSlabPlacement + RotatedBlockLookup, used identically by the click path and the placement overlay):
  • CENTER of a side face now stands an attached vertical slab flat against the rotated face (instead of a right-sided vertical slab or nothing).
  • LEFT/RIGHT edges lay vertical fins along the face tangent; TOP/BOTTOM edges lay horizontal slabs flush against the face.
  • Sign-flipped plane offsets on WEST/DOWN/NORTH faces made clicks on those faces resolve to the wrong local face and collapse the landing box into the neighbor's own cell — fixed.
  • Refused placements now cancel cleanly and explain themselves in chat instead of silently falling through to vanilla.
• Slab-aware re-rotation: R-rotating a placed slab keeps its occupied half fixed while only the angles change; re-clicking a landing cell that already holds the same slab re-places it in place with the clicked region's direction instead of reporting the cell occupied.
• Merge into double slabs: clicking the inner face of a same-material rotated vertical slab fills it into a full double slab in place, mirroring the vanilla vertical-slab rule.
• Crash fix: blocks with empty collision shapes (torches, rails, ...) no longer crash the rotated-block lookup and placement paths ("No bounds for empty shape").
• Slope-collision fixes and roughness safety for the smooth-terrain movement path.

Added

• Smooth-terrain gamerule and /smoothterrain command, plus clear-command upgrades, with movement-collision parity across all loaders.

Changed

• Placement overlays (1.21.1 face-region overlay and 26.2 volume overlay) now mirror the click rules exactly — the preview never shows a placement the game would reject, highlights sit on the block's actual rotated face, and merge clicks preview the filled block.

0.1.4 — 2026-08-24

• Cross-loader port of the rotated-block layer, renderer and selection fixes to all loaders (NeoForge/Forge/Fabric on 1.21.1 and 26.2).
• PlaceAnywhere/FreePlacement rotated-block placement; Smooth Terrain crash fixes and rendering.
• Off-grid block collision anchoring and adjacent placement fixes.
• Off-grid block adjacency and pick, hold-to-rotate and /clear rework; brush model and item renderer mixin fixes.
• Entity Tool E interface for manipulating entities.

[0.1.0] — 2026-08-19

• Initial release of the Hytale-style builder tools for NeoForge, Forge and Fabric on Minecraft 1.21.1 and 26.2: in-world selection, copy/paste, fill, undo, full entity manipulation and a WorldEdit-style command set.