v0.4.0

• New: vegetation. Trees painted with Unity's Paint Trees and grass / meshes painted with Paint Details on a Unity Terrain are exported as BeamNG forest items: art/forest/managedItemData.json (type TSForestItemData), forest/<type>.forest4.json (one JSON object per line: type, pos, rotationMatrix, scale) and a Forest object (theForest) in a new Vegetation group. Format taken from the BeamNG docs (Forest Data / Forest class).
  • Tree prefabs (LOD0 only, billboards skipped) are merged into one DAE per prefab; materials/textures go through the normal material export. Leaf/grass materials are exported double-sided with alpha test.
  • Collision: trees get "collidable": true and a convex trunk collision shape written as an extra Colmesh-1 node inside the DAE (radius from the prefab's CapsuleCollider or estimated from the trunk; bushes below a configurable height get none). Detail meshes (rocks...) can optionally collide with a bounding box. Grass never collides.
  • Details: grass textures become three crossed quads (tinted with Unity's healthy/dry colour), detail meshes use their prefab. Density slider + hard instance budget (the density is lowered automatically when the budget would be exceeded). Positions come from Unity's detail layer; heights from the terrain.
  • Limits (reported in the export report): forest items only have ONE uniform scale (tree width/height scale is averaged), no wind sway (windScale 0), no distance LOD / billboards.
• New: minimap. minimap/terrain.png is rendered on the CPU (terrain layer colours + hillshade, roads, building footprints, trees) and registered in info.json as "minimap":[{"file","size","offset"}] (docs). Resolution 512-4096.
• New "Vegetation" tab (trees, details, minimap options). Structure check now also verifies forest files (every placement type is defined, every shape exists, minimap file exists).
• Unit tests for forest line format, collision orientation and foliage detection.

Full Changelog: v0.3.2...v4.0.0