Features

• Dual-Mode Interactive Sculpting & Painting:
  Terrain Height Mode: Elevate and lower cells step-by-step with real-time 3D cursor snapping.
  Material Painter Mode: Paint materials directly onto both top faces and individual lateral cliff walls.
  
  
• Cardinal Directional Slopes:
  Automatically sculpt smooth slopes facing North, East, South, or West.
  Smart neighbor snapping dynamically bridges height differences between adjacent cells.
  
  
• Top & Lateral Face Cursor Highlighter:
  Real-time 3D viewport outline cursor highlighting the exact top quad or vertical cliff face under the mouse.
  
  
• Floating HUD Elevation Badge:
  Displays the current cell height, step delta, and targeted face orientation (e.g. [Top] H: 2.0, [Wall S] H: 1.0) directly beside the mouse cursor.
  
  
• Blender 4.2+ Asset Shelf Integration:
  Browse and select scene materials straight from the Viewport bottom drawer.
  "Sync to Drawer" operator marks project materials as local assets so they appear automatically in the drawer.
  
  
• Non-Destructive Data Persistence:
  Terrain grid topology and material assignments are serialized as compact JSON properties directly onto the Blender mesh object (gridworld_terrain_data), persisting safely inside standard .blend files.
  
  
• Multi-Game-Engine glTF 2.0 Export:
  One-click .glb export ready to import directly into Godot 4, Unity, and Unreal Engine 5 with optimized vertex normals and multi-material slot bindings.
  
  This project is open source under GPL 3.0. The $2.5 charged on this page is basically a "Buy me a Coffe" button :)