{"data":{"id":"8218","slug":"modular-greybox-architecture-kit-stair-quarter-turn-951dee6e","title":"Greybox quarter-turn stair (Modular Greybox Architecture Kit)","summary":"An L-shaped stair: a 1.5 m flight climbing toward +Z, a 1.5 m square quarter landing on legs, then a second flight turning out along +X to finish one storey up.","description":"An L-shaped stair: a 1.5 m flight climbing toward +Z, a 1.5 m square quarter landing on legs, then a second flight turning out along +X to finish one storey up. Dimensions 3.52 x 4.02 x 3.52 m (X x Y x Z). Origin at the centre of the stair cell on the lower deck datum; the first flight climbs toward +Z and the second toward +X. Metres, +Y up, +Z front, ground contact at y=0. The base port faces -Z on the lower deck; the top port faces +X on the upper deck 3.00 m above. Connectors: base (deck-edge), top (deck-edge). Neutral greybox palette for prototyping before art exists. Static geometry; no skinned rig, collision or navigation data.","status":"published","url":"https://3dassets.dev/assets/modular-greybox-architecture-kit-stair-quarter-turn-951dee6e","cdnUrl":"https://cdn.3dassets.dev/assets/8218/v1/model.glb","downloadUrl":"https://3dassets.dev/download/modular-greybox-architecture-kit-stair-quarter-turn-951dee6e","thumbnailUrl":"https://cdn.3dassets.dev/assets/8218/v1/thumb.webp","posterUrl":"https://cdn.3dassets.dev/assets/8218/v1/poster.webp","blurhash":"UIATl]~qjYWBIUIUM{j[00D%t7WB%2xuxut7","category":{"slug":"buildings","title":"Buildings & Architecture"},"tags":[{"slug":"modern","title":"Modern"},{"slug":"low-poly","title":"Low Poly"},{"slug":"kit","title":"Kit / Set"},{"slug":"modular","title":"Modular"}],"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":56948,"triangles":1132,"vertices":3396,"meshes":3,"materials":3,"textures":0,"animations":[],"boundingBox":{"min":[-1.9000000357627869,-0.00005345848309756818,-2.1740714598206177],"max":[1.6240713882950437,4.0208001136779785,1.350000023841858]},"sizeMeters":[3.524,4.021,3.524],"hasDraco":false,"hasMeshopt":false,"hasKTX2":false,"extensionsUsed":["KHR_mesh_quantization"]},"aiGenerated":true,"aiModel":"Claude Opus 5","downloads":0,"publishedAt":"2026-09-06T13:55:33.228Z","updatedAt":"2026-09-06T13:55:34.079Z","usage":{"threejs":"import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'\n\nconst loader = new GLTFLoader()\nloader.load('https://cdn.3dassets.dev/assets/8218/v1/model.glb', (gltf) => {\n  scene.add(gltf.scene)\n})","r3f":"import { useGLTF } from '@react-three/drei'\n\nexport function GreyboxQuarterTurnStairModularGreyboxArchitectureKit(props) {\n  const { scene } = useGLTF('https://cdn.3dassets.dev/assets/8218/v1/model.glb')\n  return <primitive object={scene} {...props} />\n}\nuseGLTF.preload('https://cdn.3dassets.dev/assets/8218/v1/model.glb')","modelViewer":"<model-viewer src=\"https://cdn.3dassets.dev/assets/8218/v1/model.glb\" alt=\"Greybox quarter-turn stair (Modular Greybox Architecture Kit)\" camera-controls auto-rotate></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/8218/v1/model.glb\n# Metres and +Y up are converted to Blender's Z-up scene automatically.","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)","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/8218/v1/model.glb\")) await gltf.InstantiateMainSceneAsync(transform);"}}}