{"data":{"id":"14735","slug":"steam-era-railway-and-rolling-stock-hopper-wagon-25b3d852","title":"Bottom discharge hopper wagon (Steam Era Railway and Rolling Stock)","summary":"A steel hopper wagon with sloping ends and a bottom discharge chute.","description":"A 6.0 m four-wheel steel hopper wagon: a lofted hopper body with sloping ends falling to a bottom discharge chute, an outside top rail, side stiffeners and a discharge lever. Wheel flanges rest on y=0, so the rail plane sits at y=0.03; place the vehicle at y=0.47 over a matching track module. Coupler ports sit on the buffer faces at y=1.09. Bounding size 2.44 x 2.74 x 6.00 m (X x Y x Z). Metre units, +Y up, +Z forward, resting at y=0. Named pivot nodes: wheel-1-right, wheel-1-left, wheel-2-right, wheel-2-left. Rigid node-transform clips: wheel-roll. No skinning. No collision or navigation data.","status":"published","url":"https://3dassets.dev/assets/steam-era-railway-and-rolling-stock-hopper-wagon-25b3d852","cdnUrl":"https://cdn.3dassets.dev/assets/14735/v1/model.glb","downloadUrl":"https://3dassets.dev/download/steam-era-railway-and-rolling-stock-hopper-wagon-25b3d852","thumbnailUrl":"https://cdn.3dassets.dev/assets/14735/v1/thumb.webp","posterUrl":"https://cdn.3dassets.dev/assets/14735/v1/poster.webp","blurhash":"U98XFE%39Fba_4WqIUt7E1IUM{t7VrR5RP%3","category":{"slug":"vehicles","title":"Vehicles"},"tags":[{"slug":"historical","title":"Historical"},{"slug":"realistic","title":"Realistic"},{"slug":"exterior","title":"Exterior"}],"license":{"slug":"cc0-1.0","name":"CC0 1.0 Universal","url":"https://creativecommons.org/publicdomain/zero/1.0/","attributionRequired":false},"contributor":{"username":"3dassets","name":"3D Assets","url":"https://3dassets.dev/u/3dassets"},"stats":{"fileSize":114240,"triangles":2836,"vertices":8508,"meshes":12,"materials":4,"textures":0,"animations":["wheel-roll"],"boundingBox":{"min":[-1.2199774163029877,1.19209286886246e-9,-3],"max":[1.2199774163029877,2.7412192003155305,3]},"sizeMeters":[2.44,2.741,6],"hasDraco":false,"hasMeshopt":false,"hasKTX2":false,"extensionsUsed":["KHR_mesh_quantization"]},"aiGenerated":true,"aiModel":"Claude Fable 5.1","downloads":0,"publishedAt":"2026-09-07T15:55:44.617Z","updatedAt":"2026-09-07T15:55:44.743Z","usage":{"threejs":"import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'\nimport { AnimationMixer } from 'three'\n\nlet mixer\n\nconst loader = new GLTFLoader()\nloader.load('https://cdn.3dassets.dev/assets/14735/v1/model.glb', (gltf) => {\n  scene.add(gltf.scene)\n  mixer = new AnimationMixer(gltf.scene)\n  mixer.clipAction(gltf.animations[0]).play()\n})\n\n// Call from your render loop; deltaSeconds is time since the previous frame.\nfunction updateAssetAnimation(deltaSeconds) {\n  mixer?.update(deltaSeconds)\n}","r3f":"import { useGLTF, useAnimations } from '@react-three/drei'\nimport { useEffect } from 'react'\n\nexport function BottomDischargeHopperWagonSteamEraRailwayAndRollingStock(props) {\n  const { scene, animations } = useGLTF('https://cdn.3dassets.dev/assets/14735/v1/model.glb')\n  const { actions, names } = useAnimations(animations, scene)\n  useEffect(() => {\n    const action = actions[names[0]]\n    action?.reset().play()\n    return () => { action?.stop() }\n  }, [actions, names])\n  return <primitive object={scene} {...props} />\n}\nuseGLTF.preload('https://cdn.3dassets.dev/assets/14735/v1/model.glb')","modelViewer":"<model-viewer src=\"https://cdn.3dassets.dev/assets/14735/v1/model.glb\" alt=\"Bottom discharge hopper wagon (Steam Era Railway and Rolling Stock)\" camera-controls auto-rotate autoplay></model-viewer>","blender":"# Blender 4.x: File > Import > glTF 2.0, or from the Python console after downloading the file.\nimport bpy\nbpy.ops.import_scene.gltf(filepath='model.glb')  # from https://cdn.3dassets.dev/assets/14735/v1/model.glb\n# Metres and +Y up are converted to Blender's Z-up scene automatically.\n# Clips arrive as actions; play them from the Dope Sheet > Action Editor.","godot":"# Godot 4: copy model.glb into res://models/ and the editor imports it as a scene.\nvar packed := load(\"res://models/model.glb\") as PackedScene\nvar model := packed.instantiate()\nadd_child(model)\nvar player := model.find_child(\"AnimationPlayer\", true, false) as AnimationPlayer\nplayer.play(player.get_animation_list()[0])","unity":"// Unity: import model.glb with glTFast (Package Manager: com.unity.cloud.gltfast) and drag the prefab in,\n// or load it at runtime straight from the CDN:\nusing GLTFast;\nvar gltf = new GltfImport();\nif (await gltf.Load(\"https://cdn.3dassets.dev/assets/14735/v1/model.glb\")) await gltf.InstantiateMainSceneAsync(transform);\n// Clips import as legacy AnimationClips on the root; GetComponent<Animation>().Play() starts the first."}}}