industrial refinery 3d model

Generate a GLTF/GLB 3D model composed of multiple clearly separated mesh components. The model should represent an industrial mini‑refinery with the following distinct parts, each exported as its own mesh node with unique names and clean pivot points: distillation_tower heat_exchanger pump_unit valve_block pipe_network_main storage_tank_A storage_tank_B Requirements: Each component must be a separate mesh in the GLTF node hierarchy. Each mesh must have a unique name, clean topology, and no merged geometry. Apply simple PBR materials with neutral colors (no textures required). Ensure the GLTF scene origin is centered and scaled for browser rendering. Include metadata for each mesh in extras: componentId type description Export as GLTF or GLB with full hierarchy preserved. Interaction‑ready constraints: No mesh should share vertices with another mesh. No boolean unions. No single‑mesh exports. The final GLTF must allow raycasting selection of each component in Three