DepthWeaver vs Uchi

DepthWeaver turns real-world depth into hidden-image stereograms. Capture a scene with the LiDAR scanner, generate depth from any photo with on-device AI, scan a real object with Apple's Object Capture, or load a 3D model — then watch a hidden image rise out of the noise as you cross your eyes. CAPTURE DEPTH FIVE WAYS • LiDAR live capture on iPhone Pro and iPad Pro — point, freeze, done • On-device AI depth from any photo (Depth Anything V2) • Scan real objects with Apple's Object Capture (Pro devices) — guided orbits turn a real object into a .usdz you can orbit and frame • 3D model import — .usdz, .usd, .obj, .scn with an orbit camera so you choose the angle • Bundled height map and 3D model presets to play with right away PICK A PATTERN • Six procedural generators: random dot, stars, Perlin noise, Worley noise, Voronoi cells, reaction-diffusion • Import any image from your photo library as a custom tile • Built-in texture library TUNE EVERY KNOB • DPI, depth strength, separation, oversampling • Remap input and output depth ranges to push the subject forward or back • Denoise quantized 8-bit imports for clean, banding-free output • Invert depth in one tap • Live preview redraws as you slide PRIVATE BY DESIGN Everything runs on device. No account, no upload, no tracking, no ads. Your photos and 3D scans never leave your device. UNDER THE HOOD Parallelized implementation of the Thimbleby–Inglis–Witten autostereogram algorithm with W. A. Steer's link-based hidden-surface refinement. Powered by ARKit, Object Capture, Core ML, SceneKit, Metal, and Core Image. Output is upscaled so the minimum dimension is at least 960 px — print-ready or share-ready. SHARE Export high-resolution PNGs to Photos, Messages, AirDrop, or any app with a share sheet. Available in English and French. For iPhone and iPad (iOS 18 or later) and Mac with Apple silicon (macOS 15 or later). LiDAR capture and Object Capture scans are iPhone and iPad only. Capture a scene. Pick a pattern. Stare into it.

Uchi is a 3D scanning app for iPhone. Capture the spaces around you, generate realistic 3D models, and share them with the world. HOW IT WORKS • Start a scan, stand in place, and turn around — a guided viewfinder helps you capture 8 directions • Uchi generates a photorealistic 3D space (3D Gaussian Splatting) in the cloud • On LiDAR devices, you can also capture 3D meshes and 3D room layouts (RoomPlan) • Publish your scan to the map, or keep it just for yourself AN OPEN 3D MAP, BUILT TOGETHER Published 3D data becomes open data (CC BY-SA 4.0) — free for anyone to view, download, and build upon. Indoors or outdoors, let's build an open 3D record of the world's public spaces together: stations, shops, campuses, parks and more. Prefer privacy? Set a scan to "Only me" and it stays yours. FEATURES • Guided 3D capture — no special hardware required • Photorealistic 3D (Gaussian Splatting), mesh, and room-layout capture modes • Explore scans from around the world on a 3D map, with leaderboards • Download shared models in standard formats • Sign in with Apple or Google CAPTURE RESPONSIBLY • Capture public spaces only — no private residences • Avoid capturing people and personal information • Report and block tools are built in; removal requests are always honored Requirements: iPhone with iOS 18 or later. Mesh/RoomPlan capture requires a LiDAR-equipped or 6GB+ RAM device. Terms of Service: https://uchi-production.up.railway.app/legal/terms Privacy Policy: https://uchi-production.up.railway.app/legal/privacy