Three.js World Generation For production meshes and Blender assembly, also read . Three.js remains the semantic interactive/blockout renderer; Blender is the production renderer when the brief calls for dense reference-grade scenery. The production handoff must include target dimensions for imported assets, semantic scatter exclusion zones, terrain-following water/path geometry, landmark visibility policy, camera clearance, and global/regional/walk review frames. These are world-spec contracts, not manual Blender cleanup notes. Create a persistent scene graph, not a sequence of unrelated 2D s…