{"version":"1.0","type":"rich","title":"Menger Sponge","description":"This interactive visualization renders a level 3 Menger Sponge fractal, a 3D shape formed by recursively removing the center cube from each face and the central cube of the remaining structure. The sponge is built with Three.js, using recursive grouping and `BoxGeometry` meshes with `MeshPhongMaterial` shading. The scene includes multiple lighting sources—ambient, directional, hemisphere, and point lights—to highlight the fractal’s deepening cavities. The model slowly rotates via an animation loop, while `OrbitControls` allow the user to rotate, pan, and zoom the view.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/bdf3694a24d04f6fa2ae4b2367001d3d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}