{"data":{"id":"22891","slug":"modular-greybox-architecture-kit-arch-opening-fa78b603","title":"Greybox semicircular arch opening (Modular Greybox Architecture Kit)","summary":"A self-supporting arch surround: two 1.7 m piers on spread bases carrying an eleven-voussoir semicircular arch over a 1.8 m by 2.6 m opening, 0.4 m deep.","description":"A self-supporting arch surround: two 1.7 m piers on spread bases carrying an eleven-voussoir semicircular arch over a 1.8 m by 2.6 m opening, 0.4 m deep. Dimensions 2.40 x 2.84 x 0.50 m (X x Y x Z). Origin at the centre of the opening on the floor datum; the arch springs at 1.70 m. Metres, +Y up, +Z front, ground contact at y=0. Free standing. Butt a 2 m or 4 m wall to either pier at the wall-end ports. Connectors: west (wall-end), east (wall-end). 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-arch-opening-fa78b603","cdnUrl":"https://cdn.3dassets.dev/assets/22891/v1/model.glb","downloadUrl":"https://3dassets.dev/download/modular-greybox-architecture-kit-arch-opening-fa78b603","thumbnailUrl":"https://cdn.3dassets.dev/assets/22891/v1/thumb.webp","posterUrl":"https://cdn.3dassets.dev/assets/22891/v1/poster.webp","blurhash":"U5ECwe?Z00?c~q_40000009GxtWB4pxs?b9G","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":12248,"triangles":204,"vertices":612,"meshes":3,"materials":3,"textures":0,"animations":[],"boundingBox":{"min":[-1.2000000476837158,-0.00002167062611584114,-0.2499099803275758],"max":[1.2000000476837158,2.838294744491577,0.2499099803275758]},"sizeMeters":[2.4,2.838,0.5],"hasDraco":false,"hasMeshopt":false,"hasKTX2":false,"extensionsUsed":["KHR_mesh_quantization"]},"aiGenerated":true,"aiModel":"Claude Fable 5.1","downloads":0,"publishedAt":"2026-09-07T20:02:27.218Z","updatedAt":"2026-09-07T20:02:27.304Z","usage":{"threejs":"import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'\n\nconst loader = new GLTFLoader()\nloader.load('https://cdn.3dassets.dev/assets/22891/v1/model.glb', (gltf) => {\n  scene.add(gltf.scene)\n})","r3f":"import { useGLTF } from '@react-three/drei'\n\nexport function GreyboxSemicircularArchOpeningModularGreyboxArchitectureKit(props) {\n  const { scene } = useGLTF('https://cdn.3dassets.dev/assets/22891/v1/model.glb')\n  return <primitive object={scene} {...props} />\n}\nuseGLTF.preload('https://cdn.3dassets.dev/assets/22891/v1/model.glb')","modelViewer":"<model-viewer src=\"https://cdn.3dassets.dev/assets/22891/v1/model.glb\" alt=\"Greybox semicircular arch opening (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/22891/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/22891/v1/model.glb\")) await gltf.InstantiateMainSceneAsync(transform);"}}}