I Was Here
Draw on street panoramas, others can find your drawings
Details
- External ID
- 47303571
- Source
- HN
- Company
- —
- Product
- I Was Here
- Website domain
- washere.live
- Launched
- March 9, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.1070110701107011
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
Hey HN, I made a site where you can draw on street-level panoramas. Your drawings persist and other people can see them in real time.Strokes get projected onto the 3D panorama so they wrap around buildings and follow the geometry, not just a flat overlay. Uses WebGL2 for rendering, Mapillary for the street imagery.The idea is for it to become a global canvas, anyone can leave a mark anywhere and others stumble onto it.Link is https://washere.live
Enrichment
- Theme
- Vertical
- Media & entertainment
- Function
- Marketplace
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- draw on street panoramas for others to discover
- Manually corrected
- False
Could you build this?
Partial A basic canvas overlay is simple, but projecting 2D drawing strokes accurately onto 3D scene geometry from street-level panoramas in real-time requires non-trivial 3D graphics and photogrammetry math.
What it would actually take: The stack involves Mapillary's API for street panoramas paired with Three.js or custom WebGL2 shaders that utilize camera intrinsic/extrinsic parameters and reconstructed depth point clouds or mesh proxy geometry. Drawing requires raycasting user screen strokes against the reconstructed 3D world geometry to calculate surface coordinates, storing these vector paths in a geospatial backend, and broadcasting real-time stroke updates via WebSockets. This requires specialized proficiency in 3D projective geometry, depth maps, and WebGL ray-to-surface mapping.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 75 launches clear the similarity bar, closest 8 shown.
Attention rank: #74 of 76 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 119 days after the earliest competitor.
- Search London StreetView panoramas by text · hn · 2025-11-20 · 39 upvotes · similarity 0.48
- Street Section Studio · ph · 2026-09-29 · 1 upvotes · similarity 0.47
- Tokyo Trains · hn · 2026-08-11 · 13 upvotes · similarity 0.43
- mapthis — Make a place yours · ph · 2026-09-08 · 1 upvotes · similarity 0.42
- Add grid on image: Drawing Grid Maker · ph · 2026-09-16 · 1 upvotes · similarity 0.42
- Contour Foundry · ph · 2026-09-15 · 1 upvotes · similarity 0.41
- Draw a wheel. See the road it rolls on · hn · 2026-09-10 · 7 upvotes · similarity 0.40
- Reverse perspective camera for OpenGL (Three.js) · hn · 2025-11-10 · 52 upvotes · similarity 0.40
Other launches for this product
Same idea, different domain
Nobody's really built a marketplace tool for Horizontal yet.