- WHM binary now includes per-chunk alpha map data (alphaSize + data)
so custom zones render with proper texture blending in the client
- WOT exporter rewritten with nlohmann/json (was manual string concat)
- WOT loader rewritten with nlohmann/json (was naive substring parsing)
- Backward compatible: old WHM files without alpha data still load fine
- Exports 129x129 grayscale PNG showing terrain elevation
- Auto-normalizes to 0-255 based on actual height range
- Useful for zone documentation, thumbnails, and previews
- Auto-exported alongside WOT/WHM/normals on every save
Novel open terrain format unique to wowee:
.wot (Wowee Open Terrain) — JSON metadata:
- Tile coordinates, chunk grid dimensions, texture list
- Per-chunk layer assignments and hole bitmasks
- Water data per chunk (type, height)
- Format version "wot-1.0"
.whm (Wowee HeightMap) — binary heightmap:
- "WHM1" magic header
- 256 chunks × (baseHeight + 145 float heights) = 148KB
- Direct float storage, no compression, fully portable
Both formats are entirely novel — no ADT, no WDT, no Blizzard
structures. The WCP content pack can bundle .wot/.whm instead of
ADT/WDT for fully open redistribution.
Import/export functions: WoweeTerrain::exportOpen() / importOpen()
