{"data":{"id":"36268","slug":"travelling-circus-and-big-top-circus-tractor-unit-33231186","title":"Circus Tractor Unit (Travelling Circus and Big Top)","summary":"A 5.6 m flat nosed tractor unit in circus red with a white roof pod, a gold grille and a black ballast deck behind the cab. Both cab doors are nodes on their hinge stiles and all four wheels are nodes on their axles.","description":"A 5.6 m flat nosed tractor unit in circus red with a white roof pod, a gold grille and a black ballast deck behind the cab. Both cab doors are nodes on their hinge stiles and all four wheels are nodes on their axles. Overall 2.754 x 3.210 x 5.700 m (X x Y x Z), metre units, +Y up, +Z forward, resting on y=0. Named nodes on their own pivots: door-left, door-right, wheel-fl, wheel-fr, wheel-rl, wheel-rr. Travelling Circus and Big Top / circus-lp-v1: flat shaded canvas white, circus red, gold and blue over timber, steel, charcoal and sawdust, with an embedded procedural timber map and no custom shaders. Rigid node-transform clips: open, close and roll. No skinning. No collision or navigation data.","status":"published","url":"https://3dassets.dev/assets/travelling-circus-and-big-top-circus-tractor-unit-33231186","cdnUrl":"https://cdn.3dassets.dev/assets/36268/v1/model.glb","downloadUrl":"https://3dassets.dev/download/travelling-circus-and-big-top-circus-tractor-unit-33231186","thumbnailUrl":"https://cdn.3dassets.dev/assets/36268/v1/thumb.webp","posterUrl":"https://cdn.3dassets.dev/assets/36268/v1/poster.webp","blurhash":"UJCign~C9a9ZtQj[RjRj009ZxaxuIBWByCx[","category":{"slug":"vehicles","title":"Vehicles"},"tags":[{"slug":"modern","title":"Modern"},{"slug":"low-poly","title":"Low Poly"},{"slug":"exterior","title":"Exterior"},{"slug":"animated","title":"Animated"}],"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":36512,"triangles":1408,"vertices":4224,"meshes":18,"materials":6,"textures":0,"animations":["open","close","roll"],"boundingBox":{"min":[-1.4489831001767235,-1.3113021890553966e-8,-2.799999952316284],"max":[1.3050007336074607,3.210061122671192,2.9000000953674316]},"sizeMeters":[2.754,3.21,5.7],"hasDraco":false,"hasMeshopt":false,"hasKTX2":false,"extensionsUsed":["KHR_mesh_quantization"]},"aiGenerated":true,"aiModel":"Claude Opus 5","downloads":0,"publishedAt":"2026-09-11T20:19:07.948Z","updatedAt":"2026-09-11T20:19:08.050Z","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/36268/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 CircusTractorUnitTravellingCircusAndBigTop(props) {\n  const { scene, animations } = useGLTF('https://cdn.3dassets.dev/assets/36268/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/36268/v1/model.glb')","modelViewer":"<model-viewer src=\"https://cdn.3dassets.dev/assets/36268/v1/model.glb\" alt=\"Circus Tractor Unit (Travelling Circus and Big Top)\" 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/36268/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/36268/v1/model.glb\")) await gltf.InstantiateMainSceneAsync(transform);\n// Clips import as legacy AnimationClips on the root; GetComponent<Animation>().Play() starts the first."}}}