Your 3D Scenes Become
Walkable Worlds.

Your Travel Photos, Your Garden, Your Favorite Café

Your memories become 3D spaces. Just drag & drop your 3DGS data (.ply / .sog / .spz / .rad / .lcc2).
No upload needed — everything is processed locally for complete privacy.

• Walk through landscapes you captured on your travels
• Bring your avatar to memorable places
• Re-experience the atmosphere that photos and social media can't convey

Tip: Not sure how to create 3DGS data? Apps like Scaniverse and Polycam make it easy — even on a smartphone.

Key Features

Not just a viewer — a walkable 3D experience.

What's New

A look at some standout features in action.

Sample Scenes

Try built-in 3DGS scenes right away. Click a card to launch the demo.

Tips

Handy tricks to get more out of SplatStroll Avatar.

Showing capture positions: You can visualize the capture positions of photos used to train a locally loaded 3DGS scene. Drop your COLMAP files (cameras.txt / images.txt) or a transforms.json to display capture positions in the scene. COLMAP data appears as frustums; ERP transforms.json appears as spheres. You can generate transforms.json from Metashape 360° camera data using the metashape_360_lfs script. Enable "Show photo positions" in the Camera menu and use the on/off toggle to show or hide them.

Under the Hood

3D Gaussian Splatting × Autonomous Walking × Cinematic Camera — all running entirely in the browser.

• In-Browser Terrain Analysis — Automatically detects walkable ground, walls, and elevation changes from millions of 3DGS splats in real time. WebGPU-accelerated. No server required — works on mobile browsers too
• Physics-Based Walking — Handles slopes, stairs, and multi-layer terrain including underpasses. Isolated region filtering automatically removes floating noise
• A* Pathfinding — Generates natural routes with wall-proximity, cliff, and low-confidence terrain penalties plus turn-angle costs. Includes stuck detection and automatic rerouting
• Cinematic Camera — Weighted auto-switching between dolly, orbit, fly-by, and other techniques
• Stable Fluids Wind Simulation — Real-time Navier-Stokes solver on GPU with obstacle field interaction
• Tree Sway — A shader that sways gaussians in authored tree / vegetation ROIs, driven by the wind simulation's direction, speed, and gusts. Leaf flutter is individually controllable
• Post-Effect Pipeline — Multiple styles — anime (Kuwahara + edge + posterization), ink wash, and pastel — plus Depth of Field (DoF) and vignette. Quality presets optimize from mobile to desktop
• Splat Color Modifier — Pseudo-coloring of splats by height or terrain relief, with Turbo / Viridis / Heat / Ice colormaps (LUTs). Currently single-splat (PLY / SOG / SPZ)
• Drone Camera & Video Rendering — Records walk / FPV / drone camera paths and renders them to video via offscreen rendering, encoded in-browser with presets from real-time-fast to maximum quality
• Photo Position Overlay — Generates frustums from COLMAP data and spheres from Metashape 360° ERP transforms.json, displayed in 3D space. Auto-computes frustum depth from median nearest-neighbor distance
• 3D Tiles (3DGS) Support — Streams 3DGS delivered as OGC 3D Tiles tilesets (tileset.json) directly in the browser, progressively loading only the tiles near the viewpoint to keep wide-area scenes — such as drone aerial footage fused with ground-level 360° capture — lightweight (e.g. Remains of Salt Fields on the Miura Peninsula)
• XGRIDS LCC2 Streaming LOD — Streams tiled LCC2 SOG data directly in the browser, combining the fixed env.sog background with only the LOD chunks needed around the camera

System Requirements

All you need is a modern browser.