A 3D mesh playground for coding agents (three.js + manifold-3d)
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When GPT-6/Gemini launched recently, a lot of the 3D demos used blender-mcp (https://github.com/ahujasid/blender-mcp). It's cool, but you have to install blender locally and wire up plugins just to try a prompt or share a run.I built a browser-based 3D mesh playground so you can hook up your own coding agent over MCP (or run in-browser) directly in a tab. It runs on three.js + manifold-3d for blender-like boolean/mesh editing in JS, and gives the agent a render_preview tool to take multi-view screenshots (front/right/top/iso + custom camera angles + clay mode). That way the agent can look at what it built and fix the geometry, similar to how it iterates when building a website.The submitted link is a trace of Gemini reconstructing a Copenhagen canal scene from a photo: it hits a script error on the first pass, fixes the bug, and then goes through several rounds of checking 4-view and close-up render_preview screenshots to tweak the geometry.
HN · launched Oct 26, 2026 · 5 upvotes (top 90%) · 1 view
Niche: 3d model and interactive web viewers · 54 launches, 5 in the last 7 days ▼ -50% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI feature
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 54 launches in 3d model and interactive web viewers →
Could you build this?
Yes It is a browser-based three.js playground that runs manifold-3d for mesh operations and exposes an interface for coding agents, which is standard web graphics plus API integration.
Discussion
2 comments analyzed.
Competitors mentioned: Luma, Meshy
Concerns raised: lower detail than Luma/Meshy
Competitors
Other products that read as similar to this one : 367 launches clear the similarity bar, closest 8 shown.
Attention rank: #356 of 368 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 357 days after the earliest competitor.
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- video-to-texture · github · 2026-10-27 · 36 upvotes · similarity 0.46
- blender-ai-mcp-addon · github · 2026-11-12 · 273 upvotes · similarity 0.46
- Vibe Code your 3D Models · hn · 2026-02-27 · 61 upvotes · similarity 0.45
- Heard Google copied part of our product for IO. Want to show off first · hn · 2026-05-19 · 6 upvotes · similarity 0.45
- blender-ai-copilot-hub · github · 2026-11-12 · 270 upvotes · similarity 0.45
- Seamcult · ph · 2026-11-05 · 62 upvotes · similarity 0.44
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