An Open Sourced Full 3D Building Editor
Someone just open sourced a full 3D building editor that runs entirely in your browser.
No AutoCAD. No Revit. No $5,000/year licenses.
It’s called Pascal Editor.
Built with React Three Fiber and WebGPU — meaning it renders directly on your GPU at near-native speed.
Here’s what’s inside this thing:
A full building/level/wall/zone hierarchy you can edit in real time
An ECS-style architecture where every object updates through GPU-powered systems
Zustand state management with full undo/redo built in
Next.js frontend so it deploys as a web app, not a desktop install
Dirty node tracking — only re-renders what changed, not the whole scene
Here’s the wildest part:
You can stack, explode, or solo individual building levels. Select a zone, drag a wall, reshape a slab — all in 3D, all in the browser.
Architecture firms pay $50K+ per seat for BIM software that does this workflow.
This is free.
100% Open Source.
Click to view the video: https://x.com/heygurisingh/status/2035674710005187065?s=20