Hi all 
I’ve been building Panelario — a browser-based parametric designer for
architectural panels and façades (perforated, embossed, sculpted, custom shapes).
Runs entirely client-side on three.js r183.
Currently at v0.9.8 — pre-1.0, actively iterating, feedback is gold right now.
Live viewer (free, no signup): Panelario Viewer 0.9.8
Project site: https://panelario.com
What it does
- Parametric pipeline: shape → pattern (noise / image) → relief
(heightmap displacement) → panelize / wall-projection / framing - Boolean cuts via Manifold + Clipper2 (WASM), live in the browser
- Exports: STEP / DXF / SVG / glTF / OBJ (STEP via OpenCascade.js WASM)
- WebXR AR viewing, path-traced previews (three-gpu-pathtracer)
- RAL-based material system, env-map relighting, custom textures
three.js bits that were fun/painful
- Mask cutting on curved walls — tessellated heightmap vs. exact Clipper-ring
boolean cuts (settled on a hybrid: live preview = heightmap, export = exact rings) - Splitting “editor mode” (raw mesh prep) from “studio mode” (PBR materials +
lighting) without rebuilding the scene graph each toggle - Keeping a ~50k LoC single-file viewer responsive while the geometry pipeline
grew
Status / honesty bit
Viewer is free and will stay free. The full editor (project saving,
advanced exports, manufacturer features) is a paid SaaS — flagging that
upfront since it sometimes comes up. Still pre-1.0, so things move.
Happy to dig into any of the three.js internals if anyone’s curious.
Feedback very welcome 
Built with Claude Code.