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Comments (21)

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  agys
  A nice feature to add could be a synchronized transform: when rotating one viewport the other two rotate along (optional).
• pjmlp
  I was thinking this would be doing a diff between clang, GCC and MVSC implementations of the C++ STL library.
• rpunkfu
  Would’ve been great to be able to lock/sync orientations on both
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  Agingcoder
  Ok so stl here is not standard template library. I was very confused for a minute.
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  progbits
  Looks handy. Feature suggestion: locked views so all three viewports rotate together.
• simonw
  Suggestion: add more than one demo. The default demo right now is a little un-interesting, I'd love to be able to swap that out for a few other ones that show more complex objects.
• sota_pop
  Very cool work! Nice job. Road-map looks good too! I always appreciate client/local-first emphasis. I have been seeing a lot of great in-browser apps coming out via 3js,wasm,etc (THANK YOU LLMs)With interest in this space you may be interested to check out:- That Open Company in the BIM industry (not personally affiliated, but admirer). - Fovea ArchVision (also not directly affiliated, but can attest that the team are great people.)
• embedding-shape
  This is pretty cool, and seems to be useful in order to compare various "3D model" generators that are around, would make the comparison a bit easier to make.Given it runs client-side, could you potentially offer like a CLI as well, or something we could integrate with other things / CI? That'd be a really nifty way of generating these diffs for later inspection.
• dvh
  - Multi group objs are ignored, I only see first group.- When uploading same file twice, you should warn about it like meld does (meld says: File /home/foo/Downloads/D_LED_3mm.obj is being compared to itself)
• tomtom1337
  Wow! This looks really cool! Looking forward to playing more with this?
• DaSHacka
  Wow, just needed something like this literally yesterday, thanks OP.
• happyPersonR
  Yo this would be cool to have embedded as a PR trigger on GitHub for 3d filesAnd maybe as a preview option between branches ?
• croemer
  Should be "Show HN"
• ionwake
  cool thanks
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  projscope
  I built Meshdiff because clients keep sending me part_v3_FINAL.stl and I have no quick way to see what changed.Drop two STL/3MF/OBJ files → voxel diff renders in your browser. Green = added material, red = removed. Adjustable tolerance (0.05–1mm). Volume delta metrics.Privacy first: zero upload to any server. Everything runs client-side in a Web Worker.Stack: React + TypeScript, React Three Fiber, custom voxel diff engine. No Manifold/CGAL — those assume clean CSG topology; real-world STLs are triangle soup.If you work with 3D prints, try breaking it with your weirdest files. Real-world meshes are chaos and I need the stress test.