Phase 4.1: TopingSystem infrastructure + procedural mesh generation
- TopingSystem with TopingDef registry, procedural mesh gen, instance collection
- 2 toping types: stone bevel (h=0.06, smooth) + grass edge (h=0.12, bumpy)
- 16 mesh variants per type indexed by 4-bit adjacency bitmask (~6 unique with symmetry)
- Wedge cross-section: outer wall + sloped top, grass has sinusoidal height profile
- Instance collection scans exposed +Y faces, checks same-material neighbors
- Cross-chunk adjacency via VoxelWorld::getVoxel()
- Integrated into VoxelRenderPath: init at Start(), stats in HUD
- ~191K instances, 1920 mesh vertices for 170 chunks (validated)
- Research doc (research_connected_meshes.md) + plan (plan_phase4.md)
Samuel Bouchet
9e777d653b